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Source View: {$value}

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Understanding Source Code

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Line Code
255      /**
256       * Calls the callback functions added to a filter hook.
257       *
258       * @since 4.7.0
259       *
260       * @param mixed $value The value to filter.
261       * @param array $args  Arguments to pass to callbacks.
262       * @return mixed The filtered value after all hooked functions are applied to it.
263       */
264      public function apply_filters( $value, $args ) {
265           if ( ! $this->callbacks ) {
266                return $value;
267           }
268
269           $nesting_level = $this->nesting_level++;
270
271           $this->iterations[ $nesting_level ] = array_keys( $this->callbacks );
272           $num_args                           = count( $args );
273