<?php
$query = "2+ 2";
if(preg_match('/(\d+)(\s)*([+/*-])(\s)*(\d+)/', $query)){
echo "<div class=\"calc\">Mathematical Operation</div>";
}
?>
- Output for 4.3.11, 4.4.0 - 4.4.9, 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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 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 - 8.2.18, 8.3.0 - 8.3.6
- Warning: preg_match(): Unknown modifier '*' in /in/2VTN1 on line 3
- Output for 4.3.0 - 4.3.10
- Warning: Unknown modifier '*' in /in/2VTN1 on line 3
preferences:
327.83 ms | 401 KiB | 452 Q