mirror of
https://github.com/WordPress/WordPress.git
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6f8ab483d8
git-svn-id: http://svn.automattic.com/wordpress/trunk@2246 1a063a9b-81f0-0310-95a4-ce76da25c4cd
645 lines
22 KiB
PHP
645 lines
22 KiB
PHP
<?php
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function wptexturize($text) {
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$output = '';
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// Capture tags and everything inside them
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$textarr = preg_split("/(<.*>)/Us", $text, -1, PREG_SPLIT_DELIM_CAPTURE);
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$stop = count($textarr); $next = true; // loop stuff
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for ($i = 0; $i < $stop; $i++) {
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$curl = $textarr[$i];
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if (isset($curl{0}) && '<' != $curl{0} && $next) { // If it's not a tag
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$curl = str_replace('---', '—', $curl);
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$curl = preg_replace('/(\s)--(\s)/', '$1—$2', $curl);
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$curl = str_replace('--', '–', $curl);
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$curl = str_replace('...', '…', $curl);
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$curl = str_replace('``', '“', $curl);
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// This is a hack, look at this more later. It works pretty well though.
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$cockney = array("'tain't","'twere","'twas","'tis","'twill","'til","'bout","'nuff","'round");
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$cockneyreplace = array("’tain’t","’twere","’twas","’tis","’twill","’til","’bout","’nuff","’round");
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$curl = str_replace($cockney, $cockneyreplace, $curl);
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$curl = preg_replace("/'s/", '’s', $curl);
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$curl = preg_replace("/'(\d\d(?:’|')?s)/", "’$1", $curl);
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$curl = preg_replace('/(\s|\A|")\'/', '$1‘', $curl);
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$curl = preg_replace('/(\d+)"/', '$1″', $curl);
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$curl = preg_replace("/(\d+)'/", '$1′', $curl);
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$curl = preg_replace("/(\S)'([^'\s])/", "$1’$2", $curl);
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$curl = preg_replace('/(\s|\A)"(?!\s)/', '$1“$2', $curl);
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$curl = preg_replace('/"(\s|\S|\Z)/', '”$1', $curl);
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$curl = preg_replace("/'([\s.]|\Z)/", '’$1', $curl);
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$curl = preg_replace("/ \(tm\)/i", ' ™', $curl);
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$curl = str_replace("''", '”', $curl);
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$curl = preg_replace('/(d+)x(\d+)/', "$1×$2", $curl);
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} elseif (strstr($curl, '<code') || strstr($curl, '<pre') || strstr($curl, '<kbd' || strstr($curl, '<style') || strstr($curl, '<script'))) {
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// strstr is fast
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$next = false;
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} else {
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$next = true;
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}
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$curl = preg_replace('/&([^#])(?![a-z12]{1,8};)/', '&$1', $curl);
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$output .= $curl;
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}
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return $output;
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}
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function clean_pre($text) {
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$text = str_replace('<br />', '', $text);
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$text = str_replace('<p>', "\n", $text);
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$text = str_replace('</p>', '', $text);
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return $text;
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}
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function wpautop($pee, $br = 1) {
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$pee = $pee . "\n"; // just to make things a little easier, pad the end
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$pee = preg_replace('|<br />\s*<br />|', "\n\n", $pee);
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// Space things out a little
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$pee = preg_replace('!(<(?:table|thead|tfoot|caption|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|math|p|h[1-6])[^>]*>)!', "\n$1", $pee);
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$pee = preg_replace('!(</(?:table|thead|tfoot|caption|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|math|p|h[1-6])>)!', "$1\n", $pee);
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$pee = str_replace(array("\r\n", "\r"), "\n", $pee); // cross-platform newlines
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$pee = preg_replace("/\n\n+/", "\n\n", $pee); // take care of duplicates
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$pee = preg_replace('/\n?(.+?)(?:\n\s*\n|\z)/s', "\t<p>$1</p>\n", $pee); // make paragraphs, including one at the end
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$pee = preg_replace('|<p>\s*?</p>|', '', $pee); // under certain strange conditions it could create a P of entirely whitespace
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$pee = preg_replace('!<p>\s*(</?(?:table|thead|tfoot|caption|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|hr|pre|select|form|blockquote|math|p|h[1-6])[^>]*>)\s*</p>!', "$1", $pee); // don't pee all over a tag
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$pee = preg_replace("|<p>(<li.+?)</p>|", "$1", $pee); // problem with nested lists
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$pee = preg_replace('|<p><blockquote([^>]*)>|i', "<blockquote$1><p>", $pee);
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$pee = str_replace('</blockquote></p>', '</p></blockquote>', $pee);
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$pee = preg_replace('!<p>\s*(</?(?:table|thead|tfoot|caption|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|hr|pre|select|form|blockquote|math|p|h[1-6])[^>]*>)!', "$1", $pee);
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$pee = preg_replace('!(</?(?:table|thead|tfoot|caption|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|math|p|h[1-6])[^>]*>)\s*</p>!', "$1", $pee);
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if ($br) $pee = preg_replace('|(?<!<br />)\s*\n|', "<br />\n", $pee); // optionally make line breaks
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$pee = preg_replace('!(</?(?:table|thead|tfoot|caption|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|math|p|h[1-6])[^>]*>)\s*<br />!', "$1", $pee);
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$pee = preg_replace('!<br />(\s*</?(?:p|li|div|dl|dd|dt|th|pre|td|ul|ol)>)!', '$1', $pee);
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$pee = preg_replace('!(<pre.*?>)(.*?)</pre>!ise', " stripslashes('$1') . clean_pre('$2') . '</pre>' ", $pee);
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return $pee;
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}
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function seems_utf8($Str) { # by bmorel at ssi dot fr
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for ($i=0; $i<strlen($Str); $i++) {
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if (ord($Str[$i]) < 0x80) continue; # 0bbbbbbb
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elseif ((ord($Str[$i]) & 0xE0) == 0xC0) $n=1; # 110bbbbb
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elseif ((ord($Str[$i]) & 0xF0) == 0xE0) $n=2; # 1110bbbb
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elseif ((ord($Str[$i]) & 0xF8) == 0xF0) $n=3; # 11110bbb
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elseif ((ord($Str[$i]) & 0xFC) == 0xF8) $n=4; # 111110bb
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elseif ((ord($Str[$i]) & 0xFE) == 0xFC) $n=5; # 1111110b
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else return false; # Does not match any model
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for ($j=0; $j<$n; $j++) { # n bytes matching 10bbbbbb follow ?
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if ((++$i == strlen($Str)) || ((ord($Str[$i]) & 0xC0) != 0x80))
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return false;
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}
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}
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return true;
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}
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function wp_specialchars( $text, $quotes = 0 ) {
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// Like htmlspecialchars except don't double-encode HTML entities
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$text = preg_replace('/&([^#])(?![a-z12]{1,8};)/', '&$1', $text);-
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$text = str_replace('<', '<', $text);
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$text = str_replace('>', '>', $text);
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if ( $quotes ) {
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$text = str_replace('"', '"', $text);
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$text = str_replace("'", ''', $text);
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}
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return $text;
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}
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function utf8_uri_encode( $utf8_string ) {
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$unicode = '';
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$values = array();
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$num_octets = 1;
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for ($i = 0; $i < strlen( $utf8_string ); $i++ ) {
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$value = ord( $utf8_string[ $i ] );
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if ( $value < 128 ) {
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$unicode .= chr($value);
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} else {
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if ( count( $values ) == 0 ) $num_octets = ( $value < 224 ) ? 2 : 3;
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$values[] = $value;
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if ( count( $values ) == $num_octets ) {
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if ($num_octets == 3) {
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$unicode .= '%' . dechex($values[0]) . '%' . dechex($values[1]) . '%' . dechex($values[2]);
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} else {
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$unicode .= '%' . dechex($values[0]) . '%' . dechex($values[1]);
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}
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$values = array();
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$num_octets = 1;
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}
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}
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}
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return $unicode;
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}
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function remove_accents($string) {
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if (seems_utf8($string)) {
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$chars = array(// Decompositions for Latin-1 Supplement
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chr(195).chr(128) => 'A', chr(195).chr(129) => 'A',
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chr(195).chr(130) => 'A', chr(195).chr(131) => 'A',
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chr(195).chr(132) => 'A', chr(195).chr(133) => 'A',
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chr(195).chr(135) => 'C', chr(195).chr(136) => 'E',
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chr(195).chr(137) => 'E', chr(195).chr(138) => 'E',
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chr(195).chr(139) => 'E', chr(195).chr(140) => 'I',
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chr(195).chr(141) => 'I', chr(195).chr(142) => 'I',
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chr(195).chr(143) => 'I', chr(195).chr(145) => 'N',
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chr(195).chr(146) => 'O', chr(195).chr(147) => 'O',
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chr(195).chr(148) => 'O', chr(195).chr(149) => 'O',
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chr(195).chr(150) => 'O', chr(195).chr(153) => 'U',
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chr(195).chr(154) => 'U', chr(195).chr(155) => 'U',
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chr(195).chr(156) => 'U', chr(195).chr(157) => 'Y',
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chr(195).chr(160) => 'a', chr(195).chr(161) => 'a',
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chr(195).chr(162) => 'a', chr(195).chr(163) => 'a',
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chr(195).chr(164) => 'a', chr(195).chr(165) => 'a',
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chr(195).chr(167) => 'c', chr(195).chr(168) => 'e',
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chr(195).chr(169) => 'e', chr(195).chr(170) => 'e',
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chr(195).chr(171) => 'e', chr(195).chr(172) => 'i',
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chr(195).chr(173) => 'i', chr(195).chr(174) => 'i',
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chr(195).chr(175) => 'i', chr(195).chr(177) => 'n',
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chr(195).chr(178) => 'o', chr(195).chr(179) => 'o',
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chr(195).chr(180) => 'o', chr(195).chr(181) => 'o',
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chr(195).chr(182) => 'o', chr(195).chr(182) => 'o',
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chr(195).chr(185) => 'u', chr(195).chr(186) => 'u',
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chr(195).chr(187) => 'u', chr(195).chr(188) => 'u',
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chr(195).chr(189) => 'y', chr(195).chr(191) => 'y',
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// Decompositions for Latin Extended-A
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// TODO: Finish me.
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chr(197).chr(146) => 'OE', chr(197).chr(147) => 'oe',
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chr(197).chr(160) => 'S', chr(197).chr(161) => 's',
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chr(197).chr(189) => 'Z', chr(197).chr(190) => 'z',
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// Euro Sign
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chr(226).chr(130).chr(172) => 'E');
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$string = strtr($string, $chars);
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} else {
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// Assume ISO-8859-1 if not UTF-8
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$chars['in'] = chr(128).chr(131).chr(138).chr(142).chr(154).chr(158)
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.chr(159).chr(162).chr(165).chr(181).chr(192).chr(193).chr(194)
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.chr(195).chr(196).chr(197).chr(199).chr(200).chr(201).chr(202)
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.chr(203).chr(204).chr(205).chr(206).chr(207).chr(209).chr(210)
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.chr(211).chr(212).chr(213).chr(214).chr(216).chr(217).chr(218)
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.chr(219).chr(220).chr(221).chr(224).chr(225).chr(226).chr(227)
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.chr(228).chr(229).chr(231).chr(232).chr(233).chr(234).chr(235)
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.chr(236).chr(237).chr(238).chr(239).chr(241).chr(242).chr(243)
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.chr(244).chr(245).chr(246).chr(248).chr(249).chr(250).chr(251)
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.chr(252).chr(253).chr(255);
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$chars['out'] = "EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy";
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$string = strtr($string, $chars['in'], $chars['out']);
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$double_chars['in'] = array(chr(140), chr(156), chr(198), chr(208), chr(222), chr(223), chr(230), chr(240), chr(254));
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$double_chars['out'] = array('OE', 'oe', 'AE', 'DH', 'TH', 'ss', 'ae', 'dh', 'th');
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$string = str_replace($double_chars['in'], $double_chars['out'], $string);
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}
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return $string;
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}
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function sanitize_title($title, $fallback_title = '') {
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$title = strip_tags($title);
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$title = apply_filters('sanitize_title', $title);
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if (empty($title)) {
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$title = $fallback_title;
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}
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return $title;
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}
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function sanitize_title_with_dashes($title) {
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$title = strip_tags($title);
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// Preserve escaped octets.
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$title = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '---$1---', $title);
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// Remove percent signs that are not part of an octet.
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$title = str_replace('%', '', $title);
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// Restore octets.
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$title = preg_replace('|---([a-fA-F0-9][a-fA-F0-9])---|', '%$1', $title);
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$title = remove_accents($title);
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if (seems_utf8($title)) {
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if (function_exists('mb_strtolower')) {
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$title = mb_strtolower($title, 'UTF-8');
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}
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$title = utf8_uri_encode($title);
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}
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$title = strtolower($title);
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$title = preg_replace('/&.+?;/', '', $title); // kill entities
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$title = preg_replace('/[^%a-z0-9 _-]/', '', $title);
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$title = preg_replace('/\s+/', '-', $title);
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$title = preg_replace('|-+|', '-', $title);
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$title = trim($title, '-');
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return $title;
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}
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function convert_chars($content, $flag = 'obsolete') {
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// Translation of invalid Unicode references range to valid range
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$wp_htmltranswinuni = array(
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'€' => '€', // the Euro sign
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'' => '',
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'‚' => '‚', // these are Windows CP1252 specific characters
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'ƒ' => 'ƒ', // they would look weird on non-Windows browsers
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'„' => '„',
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'…' => '…',
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'†' => '†',
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'‡' => '‡',
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'ˆ' => 'ˆ',
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'‰' => '‰',
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'Š' => 'Š',
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'‹' => '‹',
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'Œ' => 'Œ',
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'' => '',
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'Ž' => 'ž',
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'' => '',
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'' => '',
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'‘' => '‘',
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'’' => '’',
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'“' => '“',
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'”' => '”',
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'•' => '•',
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'–' => '–',
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'—' => '—',
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'˜' => '˜',
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'™' => '™',
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'š' => 'š',
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'›' => '›',
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'œ' => 'œ',
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'' => '',
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'ž' => '',
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'Ÿ' => 'Ÿ'
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);
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// Remove metadata tags
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$content = preg_replace('/<title>(.+?)<\/title>/','',$content);
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$content = preg_replace('/<category>(.+?)<\/category>/','',$content);
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// Converts lone & characters into & (a.k.a. &)
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$content = preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $content);
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// Fix Word pasting
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$content = strtr($content, $wp_htmltranswinuni);
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// Just a little XHTML help
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$content = str_replace('<br>', '<br />', $content);
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$content = str_replace('<hr>', '<hr />', $content);
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return $content;
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}
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function funky_javascript_fix($text) {
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// Fixes for browsers' javascript bugs
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global $is_macIE, $is_winIE;
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if ( $is_winIE || $is_macIE )
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$text = preg_replace("/\%u([0-9A-F]{4,4})/e", "'&#'.base_convert('\\1',16,10).';'", $text);
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return $text;
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}
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/*
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balanceTags
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Balances Tags of string using a modified stack.
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@param text Text to be balanced
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@return Returns balanced text
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@author Leonard Lin (leonard@acm.org)
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@version v1.1
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@date November 4, 2001
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@license GPL v2.0
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@notes
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@changelog
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--- Modified by Scott Reilly (coffee2code) 02 Aug 2004
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1.2 ***TODO*** Make better - change loop condition to $text
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1.1 Fixed handling of append/stack pop order of end text
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Added Cleaning Hooks
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1.0 First Version
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*/
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function balanceTags($text, $is_comment = 0) {
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if (get_settings('use_balanceTags') == 0) {
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return $text;
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}
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$tagstack = array(); $stacksize = 0; $tagqueue = ''; $newtext = '';
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# WP bug fix for comments - in case you REALLY meant to type '< !--'
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$text = str_replace('< !--', '< !--', $text);
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# WP bug fix for LOVE <3 (and other situations with '<' before a number)
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$text = preg_replace('#<([0-9]{1})#', '<$1', $text);
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while (preg_match("/<(\/?\w*)\s*([^>]*)>/",$text,$regex)) {
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$newtext .= $tagqueue;
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$i = strpos($text,$regex[0]);
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$l = strlen($regex[0]);
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// clear the shifter
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$tagqueue = '';
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// Pop or Push
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if ($regex[1][0] == "/") { // End Tag
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$tag = strtolower(substr($regex[1],1));
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// if too many closing tags
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if($stacksize <= 0) {
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$tag = '';
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//or close to be safe $tag = '/' . $tag;
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}
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// if stacktop value = tag close value then pop
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else if ($tagstack[$stacksize - 1] == $tag) { // found closing tag
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$tag = '</' . $tag . '>'; // Close Tag
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// Pop
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array_pop ($tagstack);
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$stacksize--;
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} else { // closing tag not at top, search for it
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for ($j=$stacksize-1;$j>=0;$j--) {
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if ($tagstack[$j] == $tag) {
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// add tag to tagqueue
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for ($k=$stacksize-1;$k>=$j;$k--){
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$tagqueue .= '</' . array_pop ($tagstack) . '>';
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$stacksize--;
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}
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break;
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}
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}
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$tag = '';
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}
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} else { // Begin Tag
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$tag = strtolower($regex[1]);
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// Tag Cleaning
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// If self-closing or '', don't do anything.
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if((substr($regex[2],-1) == '/') || ($tag == '')) {
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}
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// ElseIf it's a known single-entity tag but it doesn't close itself, do so
|
|
elseif ($tag == 'br' || $tag == 'img' || $tag == 'hr' || $tag == 'input') {
|
|
$regex[2] .= '/';
|
|
} else { // Push the tag onto the stack
|
|
// If the top of the stack is the same as the tag we want to push, close previous tag
|
|
if (($stacksize > 0) && ($tag != 'div') && ($tagstack[$stacksize - 1] == $tag)) {
|
|
$tagqueue = '</' . array_pop ($tagstack) . '>';
|
|
$stacksize--;
|
|
}
|
|
$stacksize = array_push ($tagstack, $tag);
|
|
}
|
|
|
|
// Attributes
|
|
$attributes = $regex[2];
|
|
if($attributes) {
|
|
$attributes = ' '.$attributes;
|
|
}
|
|
$tag = '<'.$tag.$attributes.'>';
|
|
//If already queuing a close tag, then put this tag on, too
|
|
if ($tagqueue) {
|
|
$tagqueue .= $tag;
|
|
$tag = '';
|
|
}
|
|
}
|
|
$newtext .= substr($text,0,$i) . $tag;
|
|
$text = substr($text,$i+$l);
|
|
}
|
|
|
|
// Clear Tag Queue
|
|
$newtext .= $tagqueue;
|
|
|
|
// Add Remaining text
|
|
$newtext .= $text;
|
|
|
|
// Empty Stack
|
|
while($x = array_pop($tagstack)) {
|
|
$newtext .= '</' . $x . '>'; // Add remaining tags to close
|
|
}
|
|
|
|
// WP fix for the bug with HTML comments
|
|
$newtext = str_replace("< !--","<!--",$newtext);
|
|
$newtext = str_replace("< !--","< !--",$newtext);
|
|
|
|
return $newtext;
|
|
}
|
|
|
|
|
|
function format_to_edit($content) {
|
|
$content = apply_filters('format_to_edit', $content);
|
|
$content = htmlspecialchars($content);
|
|
return $content;
|
|
}
|
|
|
|
function format_to_post($content) {
|
|
global $wpdb;
|
|
$content = apply_filters('format_to_post', $content);
|
|
return $content;
|
|
}
|
|
|
|
function zeroise($number,$threshold) { // function to add leading zeros when necessary
|
|
return sprintf('%0'.$threshold.'s', $number);
|
|
}
|
|
|
|
|
|
function backslashit($string) {
|
|
$string = preg_replace('/([a-z])/i', '\\\\\1', $string);
|
|
return $string;
|
|
}
|
|
|
|
function trailingslashit($string) {
|
|
if ( '/' != substr($string, -1)) {
|
|
$string .= '/';
|
|
}
|
|
return $string;
|
|
}
|
|
|
|
function addslashes_gpc($gpc) {
|
|
if (!get_magic_quotes_gpc()) {
|
|
$gpc = addslashes($gpc);
|
|
}
|
|
return $gpc;
|
|
}
|
|
|
|
function antispambot($emailaddy, $mailto=0) {
|
|
$emailNOSPAMaddy = '';
|
|
srand ((float) microtime() * 1000000);
|
|
for ($i = 0; $i < strlen($emailaddy); $i = $i + 1) {
|
|
$j = floor(rand(0, 1+$mailto));
|
|
if ($j==0) {
|
|
$emailNOSPAMaddy .= '&#'.ord(substr($emailaddy,$i,1)).';';
|
|
} elseif ($j==1) {
|
|
$emailNOSPAMaddy .= substr($emailaddy,$i,1);
|
|
} elseif ($j==2) {
|
|
$emailNOSPAMaddy .= '%'.zeroise(dechex(ord(substr($emailaddy, $i, 1))), 2);
|
|
}
|
|
}
|
|
$emailNOSPAMaddy = str_replace('@','@',$emailNOSPAMaddy);
|
|
return $emailNOSPAMaddy;
|
|
}
|
|
|
|
function make_clickable($ret) {
|
|
$ret = ' ' . $ret . ' ';
|
|
$ret = preg_replace("#([\s>])(https?)://([^\s<>{}()]+[^\s.,<>{}()])#i", "$1<a href='$2://$3' rel='nofollow'>$2://$3</a>", $ret);
|
|
$ret = preg_replace("#(\s)www\.([a-z0-9\-]+)\.([a-z0-9\-.\~]+)((?:/[^ <>{}()\n\r]*[^., <>{}()\n\r]?)?)#i", "$1<a href='http://www.$2.$3$4' rel='nofollow'>www.$2.$3$4</a>", $ret);
|
|
$ret = preg_replace("#(\s)([a-z0-9\-_.]+)@([^,< \n\r]+)#i", "$1<a href=\"mailto:$2@$3\">$2@$3</a>", $ret);
|
|
$ret = trim($ret);
|
|
return $ret;
|
|
}
|
|
|
|
function wp_rel_nofollow( $text ) {
|
|
$text = preg_replace('|<a (.+?)>|i', '<a $1 rel="nofollow">', $text);
|
|
return $text;
|
|
}
|
|
|
|
function convert_smilies($text) {
|
|
global $wp_smiliessearch, $wp_smiliesreplace;
|
|
$output = '';
|
|
if (get_settings('use_smilies')) {
|
|
// HTML loop taken from texturize function, could possible be consolidated
|
|
$textarr = preg_split("/(<.*>)/U", $text, -1, PREG_SPLIT_DELIM_CAPTURE); // capture the tags as well as in between
|
|
$stop = count($textarr);// loop stuff
|
|
for ($i = 0; $i < $stop; $i++) {
|
|
$content = $textarr[$i];
|
|
if ((strlen($content) > 0) && ('<' != $content{0})) { // If it's not a tag
|
|
$content = str_replace($wp_smiliessearch, $wp_smiliesreplace, $content);
|
|
}
|
|
$output .= $content;
|
|
}
|
|
} else {
|
|
// return default text.
|
|
$output = $text;
|
|
}
|
|
return $output;
|
|
}
|
|
|
|
|
|
function is_email($user_email) {
|
|
$chars = "/^([a-z0-9+_]|\\-|\\.)+@(([a-z0-9_]|\\-)+\\.)+[a-z]{2,6}\$/i";
|
|
if(strstr($user_email, '@') && strstr($user_email, '.')) {
|
|
if (preg_match($chars, $user_email)) {
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
function strip_all_but_one_link($text, $mylink) {
|
|
$match_link = '#(<a.+?href.+?'.'>)(.+?)(</a>)#';
|
|
preg_match_all($match_link, $text, $matches);
|
|
$count = count($matches[0]);
|
|
for ($i=0; $i<$count; $i++) {
|
|
if (!strstr($matches[0][$i], $mylink)) {
|
|
$text = str_replace($matches[0][$i], $matches[2][$i], $text);
|
|
}
|
|
}
|
|
return $text;
|
|
}
|
|
|
|
|
|
// used by wp-mail to handle charsets in email subjects
|
|
function wp_iso_descrambler($string) {
|
|
/* this may only work with iso-8859-1, I'm afraid */
|
|
if (!preg_match('#\=\?(.+)\?Q\?(.+)\?\=#i', $string, $matches)) {
|
|
return $string;
|
|
} else {
|
|
$subject = str_replace('_', ' ', $matches[2]);
|
|
$subject = preg_replace('#\=([0-9a-f]{2})#ei', "chr(hexdec(strtolower('$1')))", $subject);
|
|
return $subject;
|
|
}
|
|
}
|
|
|
|
|
|
// give it a date, it will give you the same date as GMT
|
|
function get_gmt_from_date($string) {
|
|
// note: this only substracts $time_difference from the given date
|
|
preg_match('#([0-9]{1,4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})#', $string, $matches);
|
|
$string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);
|
|
$string_gmt = gmdate('Y-m-d H:i:s', $string_time - get_settings('gmt_offset') * 3600);
|
|
return $string_gmt;
|
|
}
|
|
|
|
// give it a GMT date, it will give you the same date with $time_difference added
|
|
function get_date_from_gmt($string) {
|
|
// note: this only adds $time_difference to the given date
|
|
preg_match('#([0-9]{1,4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})#', $string, $matches);
|
|
$string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);
|
|
$string_localtime = gmdate('Y-m-d H:i:s', $string_time + get_settings('gmt_offset')*3600);
|
|
return $string_localtime;
|
|
}
|
|
|
|
// computes an offset in seconds from an iso8601 timezone
|
|
function iso8601_timezone_to_offset($timezone) {
|
|
// $timezone is either 'Z' or '[+|-]hhmm'
|
|
if ($timezone == 'Z') {
|
|
$offset = 0;
|
|
} else {
|
|
$sign = (substr($timezone, 0, 1) == '+') ? 1 : -1;
|
|
$hours = intval(substr($timezone, 1, 2));
|
|
$minutes = intval(substr($timezone, 3, 4)) / 60;
|
|
$offset = $sign * 3600 * ($hours + $minutes);
|
|
}
|
|
return $offset;
|
|
}
|
|
|
|
// converts an iso8601 date to MySQL DateTime format used by post_date[_gmt]
|
|
function iso8601_to_datetime($date_string, $timezone = USER) {
|
|
if ($timezone == GMT) {
|
|
preg_match('#([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(Z|[\+|\-][0-9]{2,4}){0,1}#', $date_string, $date_bits);
|
|
if (!empty($date_bits[7])) { // we have a timezone, so let's compute an offset
|
|
$offset = iso8601_timezone_to_offset($date_bits[7]);
|
|
} else { // we don't have a timezone, so we assume user local timezone (not server's!)
|
|
$offset = 3600 * get_settings('gmt_offset');
|
|
}
|
|
$timestamp = gmmktime($date_bits[4], $date_bits[5], $date_bits[6], $date_bits[2], $date_bits[3], $date_bits[1]);
|
|
$timestamp -= $offset;
|
|
return gmdate('Y-m-d H:i:s', $timestamp);
|
|
} elseif ($timezone == USER) {
|
|
return preg_replace('#([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(Z|[\+|\-][0-9]{2,4}){0,1}#', '$1-$2-$3 $4:$5:$6', $date_string);
|
|
}
|
|
}
|
|
|
|
function popuplinks($text) {
|
|
// Comment text in popup windows should be filtered through this.
|
|
// Right now it's a moderately dumb function, ideally it would detect whether
|
|
// a target or rel attribute was already there and adjust its actions accordingly.
|
|
$text = preg_replace('/<a (.+?)>/i', "<a $1 target='_blank' rel='external'>", $text);
|
|
return $text;
|
|
}
|
|
|
|
function sanitize_email($email) {
|
|
return preg_replace('/[^a-z0-9+_.@-]/i', '', $email);
|
|
}
|
|
|
|
function human_time_diff( $from, $to = '' ) {
|
|
if ( empty($to) )
|
|
$to = time();
|
|
$diff = (int) ($to - $from);
|
|
if ($diff <= 3600) {
|
|
$mins = round($diff / 60);
|
|
if ($mins <= 1)
|
|
$since = __('1 min');
|
|
else
|
|
$since = sprintf( __('%s mins'), $mins);
|
|
} else if (($diff <= 86400) && ($diff > 3600)) {
|
|
$hours = round($diff / 3600);
|
|
if ($hours <= 1)
|
|
$since = __('1 hour');
|
|
else
|
|
$since = sprintf( __('%s hours'), $hours );
|
|
} elseif ($diff >= 86400) {
|
|
$days = round($diff / 86400);
|
|
if ($days <= 1)
|
|
$since = __('1 day');
|
|
else
|
|
$since = sprintf( __('%s days'), $days );
|
|
}
|
|
return $since;
|
|
}
|
|
|
|
?>
|