3v4l.org

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<?php echo (!preg_match(("/^[a-zA-Z-]+$/i", 'A')) ? 'false' : 'true'; echo "\n"; echo (!preg_match(("/^[a-zA-Z-]+$/i", '4567A')) ? 'false' : 'true';
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.22
Parse error: syntax error, unexpected ',' in /in/hvnma on line 2
Process exited with code 255.
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184.6 ms | 1395 KiB | 58 Q