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<?php $key = preg_replace( '/[^a-zA-Z0-9\_]/','sdsadsad-asdsadasdsd');
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught ArgumentCountError: preg_replace() expects at least 3 arguments, 2 given in /in/rkVkv:2 Stack trace: #0 /in/rkVkv(2): preg_replace('/[^a-zA-Z0-9\\_]...', 'sdsadsad-asdsad...') #1 {main} thrown in /in/rkVkv on line 2
Process exited with code 255.

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