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<?php echo preg_math("#CAPTION", /^\#[A-Z]+$/);
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.28
Parse error: syntax error, unexpected '/' in /in/CKRDj on line 2
Process exited with code 255.
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183.41 ms | 1395 KiB | 65 Q