Source View: sanitize_key

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: apply_filters( "hook_name", "what_to_filter" ).

Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

Line Code
981
982      /**
983       * Filter a sanitized key string.
984       *
985       * @since 3.0.0
986       *
987       * @param string $key     Sanitized key.
988       * @param string $raw_key The key prior to sanitization.
989       */
990      return apply_filters( 'sanitize_key', $key, $raw_key );
991 }
992
993 /**
994  * Sanitizes a title, or returns a fallback title.
995  *
996  * Specifically, HTML and PHP tags are stripped. Further actions can be added
997  * via the plugin API. If $title is empty and $fallback_title is set, the latter
998  * will be used.
999  *