Changeset 58763 for trunk/src/wp-includes/functions.php

Timestamp:

07/18/2024 06:02:17 PM (8 weeks ago)

Author:

jorbin

Message:

General: Provide _is_utf8_charset() in compat.php for early use

#61182 introduced is_utf8_charset() as a way of standardizing checks for charset slugs referring to UTF-8. This is called by _mb_strlen() inside of compat.php, but is_utf8_charset() is defined in functions.php, which isn't loaded early on. Code calling mb_strlen() early on before functions.php loads in hosts without the multibyte extension therefore may crash.

Props dmsnell, jonsurrell, joemcgill, jorbin.
Fixes #61681.

File:

• trunk/src/wp-includes/functions.php (modified) (2 diffs)

trunk/src/wp-includes/functions.php

@@ -7497 +7497 @@
  *
  * @since 6.6.0
+ * @since 6.6.1 A wrapper for _is_utf8_charset
+ *
+ * @see _is_utf8_charset
  *
  * @param string|null $blog_charset Optional. Slug representing a text character encoding, or "charset".
@@ -7504 +7507 @@
  */
 function is_utf8_charset( $blog_charset = null ) {
-    $charset_to_examine = $blog_charset ?? get_option( 'blog_charset' );
-
-    /*
-     * Only valid string values count: the absence of a charset
-     * does not imply any charset, let alone UTF-8.
-     */
-    if ( ! is_string( $charset_to_examine ) ) {
-        return false;
-    }
-
-    return (
-        0 === strcasecmp( 'UTF-8', $charset_to_examine ) ||
-        0 === strcasecmp( 'UTF8', $charset_to_examine )
-    );
+    return _is_utf8_charset( $blog_charset ?? get_option( 'blog_charset' ) );
 }