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run code in 300+ PHP versions simultaneously
<?php class Test { function __construct(){echo 'a';} } ${INF} = 'a'; // new ${!${''}='Test'}; var_dump(${-INF});
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $-INF in /in/X2IQp on line 9 NULL
Output for 5.4.1 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.5 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: -INF in /in/X2IQp on line 9 NULL
Output for 7.3.32 - 7.3.33
NULL
preferences:
150.38 ms | 401 KiB | 227 Q