3v4l.org

run code in 300+ PHP versions simultaneously
<?php class String extends \SplString { protected $encoding; public function __construct($default, $strict = true, $encoding = null) { $this->encoding = $encoding; parent::__construct($default, $strict); } }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.32
Fatal error: Class 'SplString' not found in /in/WkiC9 on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/WkiC9 on line 2 Fatal error: Class 'SplString' not found in /in/WkiC9 on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/WkiC9 on line 2 Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/WkiC9 on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/WkiC9 on line 2 Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/WkiC9 on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/WkiC9 on line 2 Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/WkiC9 on line 4
Process exited with code 255.
preferences:
213.1 ms | 940 KiB | 124 Q