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<?php function isAssoc($array) { $array = array_keys($array); var_dump($array, array_keys($array)); return ($array !== array_keys($array)); } var_dump(isAssoc(array(0=>'a',2=>'b',1=>'c')));
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { [0]=> int(0) [1]=> int(2) [2]=> int(1) } array(3) { [0]=> int(0) [1]=> int(1) [2]=> int(2) } bool(true)

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