Initial commit

wordpress_plugins/debug-bar-shortcodes/php53/php5.3-closure-test.php

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+<?php
+/**
+ * Debug Bar Shortcodes - is_closure test.
+ *
+ * @package     WordPress\Plugins\Debug Bar Shortcodes
+ * @author      Juliette Reinders Folmer <wpplugins_nospam@adviesenzo.nl>
+ * @link        https://github.com/jrfnl/Debug-Bar-Shortcodes
+ * @since       1.0
+ *
+ * @copyright   2013-2016 Juliette Reinders Folmer
+ * @license     http://creativecommons.org/licenses/GPL/2.0/ GNU General Public License, version 2 or higher
+ */
+
+if ( ! function_exists( 'debug_bar_shortcodes_is_closure' ) ) {
+	/**
+	 * Check if a callback is a closure.
+	 *
+	 * @param mixed $arg Function name.
+	 *
+	 * @return bool
+	 */
+	function debug_bar_shortcodes_is_closure( $arg ) {
+		$test       = function() {
+		};
+		$is_closure = ( $arg instanceof $test );
+		return $is_closure;
+	}
+}