3v4l.org

run code in 300+ PHP versions simultaneously
<?php $mult = function($a, $b) { return $a * $b; }; $arr = [ 'foo' => 3 ]; $sql = <<<SQL SELECT {$mult($arr['foo'], 2)}; SQL; echo $sql;
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
SELECT 6;
preferences:
228.48 ms | 404 KiB | 293 Q