Changeset 58764 for branches/6.6/src/wp-includes/functions.php

Timestamp:

07/18/2024 06:20:39 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.

Reviewed by hellofromTonya.
Merges [58763] to the 6.6 branch.

Props dmsnell, jonsurrell, joemcgill, jorbin.
Fixes #61680.

Location:

branches/6.6

Files:

• . (modified) (1 prop)
• src/wp-includes/functions.php (modified) (1 diff)

branches/6.6/src/wp-includes/functions.php

@@ -7497 +7497 @@
  *
  * @since 6.6.0
- *
- * @param ?string $blog_charset Slug representing a text character encoding, or "charset".
- *                              E.g. "UTF-8", "Windows-1252", "ISO-8859-1", "SJIS".
+ * @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".
+ *                                  E.g. "UTF-8", "Windows-1252", "ISO-8859-1", "SJIS".
+ *                                  Default value is to infer from "blog_charset" option.
  * @return bool Whether the slug represents the UTF-8 encoding.
  */
 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' ) );
 }