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<?php $foo = [true, false, true]; $bar = ['joe', 'paul', 'steve']; $result = array_intersect_keys($bar, array_filter($foo)); var_dump($result);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Call to undefined function array_intersect_keys() in /in/3u31n:6 Stack trace: #0 {main} thrown in /in/3u31n on line 6
Process exited with code 255.

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