WordPress/wp-admin/load-styles.php
Sergey Biryukov 2ec23a82ed Code Modernization: Replace usage of strpos() with str_starts_with().
`str_starts_with()` was introduced in PHP 8.0 to perform a case-sensitive check indicating if the string to search in (haystack) begins with the given substring (needle).

WordPress core includes a polyfill for `str_starts_with()` on PHP < 8.0 as of WordPress 5.9.

This commit replaces `0 === strpos( ... )` with `str_starts_with()` in core files, making the code more readable and consistent, as well as improving performance.

While `strpos()` is slightly faster than the polyfill on PHP < 8.0, `str_starts_with()` is noticeably faster on PHP 8.0+, as it is optimized to avoid unnecessarily searching along the whole haystack if it does not find the needle.

Follow-up to [52039], [52040], [52326].

Props spacedmonkey, costdev, sabernhardt, mukesh27, desrosj, jorbin, TobiasBg, ayeshrajans, lgadzhev, SergeyBiryukov.
Fixes #58012.
Built from https://develop.svn.wordpress.org/trunk@55703


git-svn-id: http://core.svn.wordpress.org/trunk@55215 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2023-05-02 15:45:22 +00:00

93 lines
2.5 KiB
PHP

<?php
/*
* Disable error reporting.
*
* Set this to error_reporting( -1 ) for debugging.
*/
error_reporting( 0 );
// Set ABSPATH for execution.
if ( ! defined( 'ABSPATH' ) ) {
define( 'ABSPATH', dirname( __DIR__ ) . '/' );
}
define( 'WPINC', 'wp-includes' );
define( 'WP_CONTENT_DIR', ABSPATH . 'wp-content' );
require ABSPATH . 'wp-admin/includes/noop.php';
require ABSPATH . WPINC . '/theme.php';
require ABSPATH . WPINC . '/class-wp-theme-json-resolver.php';
require ABSPATH . WPINC . '/global-styles-and-settings.php';
require ABSPATH . WPINC . '/script-loader.php';
require ABSPATH . WPINC . '/version.php';
$protocol = $_SERVER['SERVER_PROTOCOL'];
if ( ! in_array( $protocol, array( 'HTTP/1.1', 'HTTP/2', 'HTTP/2.0', 'HTTP/3' ), true ) ) {
$protocol = 'HTTP/1.0';
}
$load = $_GET['load'];
if ( is_array( $load ) ) {
ksort( $load );
$load = implode( '', $load );
}
$load = preg_replace( '/[^a-z0-9,_-]+/i', '', $load );
$load = array_unique( explode( ',', $load ) );
if ( empty( $load ) ) {
header( "$protocol 400 Bad Request" );
exit;
}
$rtl = ( isset( $_GET['dir'] ) && 'rtl' === $_GET['dir'] );
$expires_offset = 31536000; // 1 year.
$out = '';
$wp_styles = new WP_Styles();
wp_default_styles( $wp_styles );
if ( isset( $_SERVER['HTTP_IF_NONE_MATCH'] ) && stripslashes( $_SERVER['HTTP_IF_NONE_MATCH'] ) === $wp_version ) {
header( "$protocol 304 Not Modified" );
exit;
}
foreach ( $load as $handle ) {
if ( ! array_key_exists( $handle, $wp_styles->registered ) ) {
continue;
}
$style = $wp_styles->registered[ $handle ];
if ( empty( $style->src ) ) {
continue;
}
$path = ABSPATH . $style->src;
if ( $rtl && ! empty( $style->extra['rtl'] ) ) {
// All default styles have fully independent RTL files.
$path = str_replace( '.min.css', '-rtl.min.css', $path );
}
$content = get_file( $path ) . "\n";
if ( str_starts_with( $style->src, '/' . WPINC . '/css/' ) ) {
$content = str_replace( '../images/', '../' . WPINC . '/images/', $content );
$content = str_replace( '../js/tinymce/', '../' . WPINC . '/js/tinymce/', $content );
$content = str_replace( '../fonts/', '../' . WPINC . '/fonts/', $content );
$out .= $content;
} else {
$out .= str_replace( '../images/', 'images/', $content );
}
}
header( "Etag: $wp_version" );
header( 'Content-Type: text/css; charset=UTF-8' );
header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', time() + $expires_offset ) . ' GMT' );
header( "Cache-Control: public, max-age=$expires_offset" );
echo $out;
exit;