3v4l.org

run code in 300+ PHP versions simultaneously
<?php $myVariable1 = '2345'; $myVariable2 = 4433; $myVariable3 = 'test'; $myVariable4 = '1345.33'; function makeInteger($val){ return is_numeric($val) ? (int)$val : null; } for($i=1;$i<=4;$i++){ echo makeInteger(${"myVariable".$i}).PHP_EOL; }
Output for 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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
2345 4433 1345
preferences:
79.29 ms | 1460 KiB | 4 Q