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847b7d8690
The `_mb_substr()` function expects a string for the `$str` parameter, but does not do input validation. This function contains a `preg_match_all()` which also expects a string type for the given subject (i.e. `$str`). Passing `null` to this parameter results in `preg_match_all(): Passing null to parameter #2 ($subject) of type string is deprecated` notice on PHP 8.1. To maintain the same behaviour as before, a guard clause is added to bail out early when `$str` is passed as `null`. The outcome will, in that case, only ever be an empty string. Note: this does mean that the `_mb_substr()` function now has a subtle difference in behaviour compared to the PHP native `mb_substr()` function as the latter ''will'' throw the deprecation notice. The existing tests already cover this issue. Follow-up to [17621], [36017], [32364]. Props jrf, hellofromTonya. See #53635. Built from https://develop.svn.wordpress.org/trunk@51853 git-svn-id: http://core.svn.wordpress.org/trunk@51452 1a063a9b-81f0-0310-95a4-ce76da25c4cd
48 lines
939 B
PHP
48 lines
939 B
PHP
<?php
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/**
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* WordPress Version
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*
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* Contains version information for the current WordPress release.
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*
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* @package WordPress
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* @since 1.2.0
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*/
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/**
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* The WordPress version string.
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*
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* Holds the current version number for WordPress core. Used to bust caches
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* and to enable development mode for scripts when running from the /src directory.
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*
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* @global string $wp_version
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*/
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$wp_version = '5.9-alpha-51853';
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/**
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* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
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*
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* @global int $wp_db_version
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*/
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$wp_db_version = 49752;
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/**
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* Holds the TinyMCE version.
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*
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* @global string $tinymce_version
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*/
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$tinymce_version = '49110-20201110';
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/**
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* Holds the required PHP version.
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*
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* @global string $required_php_version
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*/
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$required_php_version = '5.6.20';
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/**
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* Holds the required MySQL version.
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*
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* @global string $required_mysql_version
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*/
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$required_mysql_version = '5.0';
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