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<?php $a = array(1004 => "a", 4573 => "b", 7865 => "c", 8965 => "d", 9321 => "d"); unset($a[7865]); var_dump($a);
Output for git.master, git.master_jit, rfc.property-hooks
array(4) { [1004]=> string(1) "a" [4573]=> string(1) "b" [8965]=> string(1) "d" [9321]=> string(1) "d" }

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