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<?php $filter = "id eq '2'"; $a = preg_grep('\d+', $filter); var_dump($a);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: preg_grep(): Argument #2 ($array) must be of type array, string given in /in/mNFKf:4 Stack trace: #0 /in/mNFKf(4): preg_grep('\\d+', 'id eq '2'') #1 {main} thrown in /in/mNFKf on line 4
Process exited with code 255.

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