Source View: deprecated_argument_trigger_error

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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
4010      do_action( 'deprecated_argument_run', $function, $message, $version );
4011
4012      /**
4013       * Filters whether to trigger an error for deprecated arguments.
4014       *
4015       * @since 3.0.0
4016       *
4017       * @param bool $trigger Whether to trigger the error for deprecated arguments. Default true.
4018       */
4019      if ( WP_DEBUG && apply_filters( 'deprecated_argument_trigger_error', true ) ) {
4020           if ( function_exists( '__' ) ) {
4021                if ( ! is_null( $message ) ) {
4022                     /* translators: 1: PHP function name, 2: version number, 3: optional message regarding the change */
4023                     trigger_error( sprintf( __('%1$s was called with an argument that is <strong>deprecated</strong> since version %2$s! %3$s'), $function, $version, $message ) );
4024                } else {
4025                     /* translators: 1: PHP function name, 2: version number */
4026                     trigger_error( sprintf( __('%1$s was called with an argument that is <strong>deprecated</strong> since version %2$s with no alternative available.'), $function, $version ) );
4027                }
4028           } else {