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<?php $text = ""; $word = "die('Lalala'); 1||1/e\0"; // Slightly contrived example, but let's pretend we're // case-normalizing a user-provided word, and forgot to // preg_quote $text = preg_replace('/'.$word.'/i', $word, $text);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: preg_replace(): NUL is not a valid modifier in /in/uWrso on line 8
Output for 5.4.7 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 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
Warning: preg_replace(): Null byte in regex in /in/uWrso on line 8
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.6
Warning: Unexpected character in input: ' in /in/uWrso(8) : regexp code on line 1 Lalala
Output for 4.3.0 - 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
Lalala
preferences:
254.79 ms | 402 KiB | 355 Q