Minor performance improvement

Author: Soft79

includes/wpm-formatting-functions.php

@@ -187,6 +187,9 @@ function wpm_strip_protocol( $url ) {
  */
 if ( ! function_exists( 'isJSON' ) ) {
 	function isJSON( $string ) {
-		return is_string( $string ) && is_array( json_decode( $string, true ) ) && ( json_last_error() == JSON_ERROR_NONE ) ? true : false;
+		return is_string( $string ) 
+			&& strlen( $string ) >= 2 
+			&& $string[0] === '{' 
+			&& is_array( json_decode( $string, true ) );
 	}
 }

includes/wpm-translation-functions.php

@@ -154,17 +154,16 @@ function wpm_translate_value( $value, $language = '' ) {
  * @return array|mixed|string
  */
 function wpm_string_to_ml_array( $string ) {
-	if ( ! is_string( $string ) || $string === '' || is_serialized_string( $string ) || isJSON( $string ) ) {
+	if ( ! is_string( $string ) || strlen( $string ) === 0 || is_serialized_string( $string ) || isJSON( $string ) ) {
 		return $string;
 	}
 
+	//Improves speed
+	if ( ! str_contains( $string, '[:' ) ) return $string;
+
 	$string = htmlspecialchars_decode( $string );
 	$blocks = preg_split( '#\[:([a-z-]*)\]#im', $string, - 1, PREG_SPLIT_DELIM_CAPTURE );
 
-	if ( empty( $blocks ) ) {
-		return $string;
-	}
-
 	$languages = wpm_get_lang_option();
 	$result    = array_fill_keys( array_keys( $languages ), '' );
 	$language  = count( $blocks ) === 1 ? wpm_get_default_language() : '';