3v4l.org

run code in 300+ PHP versions simultaneously
<?php class String{ private $string; public function __construct($string){ $this->string = $string; } public function __toString(){ return strval($this->string); } } var_dump(array( new String('a') => new String('b') )); $b[new String('c')] = new String('d'); var_dump($b);
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Warning: Illegal offset type in /in/EUsWT on line 17 array(0) { } Warning: Illegal offset type in /in/EUsWT on line 19 array(0) { }
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/EUsWT 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
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/EUsWT on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/EUsWT on line 4
Process exited with code 255.
preferences:
236.41 ms | 1395 KiB | 162 Q