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run code in 300+ PHP versions simultaneously
<?php $logic = '<?php $x = "<?php echo \'Hands off my tags you sunnuvabitch.\'; ?>" ?>'; echo preg_replace('/^<\?php|\?>$/', '', $logic);
Output for 7.0.0 - 7.0.23, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.29, 8.2.0 - 8.2.20, 8.3.0 - 8.3.8
$x = "<?php echo 'Hands off my tags you sunnuvabitch.'; ?>"

preferences:
163.77 ms | 404 KiB | 181 Q