Author: mcaskill

Function.HTML-Build-Attributes.php

@@ -7,10 +7,10 @@
 	 *
 	 * @param   array     $attr      Associative array of attribute names and values.
 	 * @param   callable  $callback  Callback function to escape values for HTML attributes.
-	 *                               Defaults to the WordPress' 'esc_attr' function.
+	 *                               Defaults to `htmlspecialchars()`.
 	 * @return  string  Returns a string of HTML attributes.
 	 */
-	function html_build_attributes( $attr = [], $callback = 'esc_attr' )
+	function html_build_attributes( $attr = [], $callback = null )
 	{
 	    $html = '';
 
@@ -26,6 +26,10 @@ function ( $val, $key ) {
 
 	                    if ( is_callable( $callback ) ) {
 	                    	$val = call_user_func( $callback, $val );
+	                    } elseif ( function_exists('esc_attr') ) {
+	                    	$val = esc_attr( $val );
+	                    } else {
+	                    	$val = htmlspecialchars( $val, ENT_QUOTES );
 	                    }
 
 	                    return sprintf( '%1$s="%2$s"', $key, $val );