3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php # -*- coding: utf-8 -*- declare( encoding = 'UTF-8' ); header('Content-Type: text/plain;charset=utf-8'); $string = 'Doppelgänger'; print 'strlen(): ' . strlen( $string ) . "\n"; print 'mb_strlen(): ' . mb_strlen( $string, 'utf8' ) . "\n\n"; print 'substr(): ' . substr( $string, 0, 8 ) . "\n"; print 'mb_substr(): ' . mb_substr( $string, 0, 8, 'utf8' );
Output for 5.4.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: declare(encoding=...) ignored because Zend multibyte feature is turned off by settings in /in/odW4r on line 2 Warning: Cannot modify header information - headers already sent by (output started at /in/odW4r:2) in /in/odW4r on line 3 strlen(): 13 mb_strlen(): 12 substr(): Doppelg� mb_substr(): Doppelgä
Output for 4.3.0 - 5.3.29, hhvm-3.10.0 - 3.12.0
strlen(): 13 mb_strlen(): 12 substr(): Doppelg� mb_substr(): Doppelgä