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<?php $assoc = array( "a" => 1, "b" => 0, 0 => 0 ); function is_assoc($in_array){ ksort($in_array); return !ctype_digit( implode('', array_keys($test_array)) ); } echo is_assoc($assoc); ?>
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $test_array in /in/lhkZE on line 11 Fatal error: Uncaught TypeError: array_keys(): Argument #1 ($array) must be of type array, null given in /in/lhkZE:11 Stack trace: #0 /in/lhkZE(11): array_keys(NULL) #1 /in/lhkZE(14): is_assoc(Array) #2 {main} thrown in /in/lhkZE on line 11
Process exited with code 255.

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