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<?php echo preg_replace('@(?=\pL)@u', '*', 'م'); // prints: '*م' ✓ echo preg_replace('@(?=\pL)@u', '*', 'ض'); // prints: '*ض' ✓ echo preg_replace('@(?=\pL)@u', '*', 'غ'); // prints: '*�*�' ✗ echo preg_replace('@(?=\pL)@u', '*', 'ص'); // prints: '*�*�' ✗
Output for git.master, git.master_jit, rfc.property-hooks
*م*ض*غ*ص

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