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<?php $psm_name = 'EurAsia'; if ((preg_match("/^[a-zA-Z0-9&@#_.^-\s^'\"]+$/", $psm_name))) { echo "true"; }else{ echo "false"; }
Output for git.master, git.master_jit, rfc.property-hooks
Warning: preg_match(): Compilation failed: invalid range in character class at offset 20 in /in/oEl9K on line 3 false

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