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run code in 300+ PHP versions simultaneously
<?php class a{ static public $b; static public function init(){ (self::$b)(); self::$b=function(){}; } } a::$b=function(){echo 'Here I do very heavy stuff, but will happen only in the first time I call init()';}; for($i=0;$i<3;$i++){ a::init(); }
Output for 7.0.0 - 7.0.27, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Here I do very heavy stuff, but will happen only in the first time I call init()
Output for 5.6.0 - 5.6.30
Parse error: syntax error, unexpected '(' in /in/T5J8m on line 6
Process exited with code 255.
preferences:
133.74 ms | 407 KiB | 5 Q