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<?php $x = [ 'foo' => ['a' => 1, 'b' => 2], 'bar' => ['a' => 3, 'b' => 4], 'fizz' => ['a' => 5, 'b' => 6], 'buzz' => ['a' => 7, 'b' => 8] ]; var_dump(array_column($x, 'b'));
Output for git.master, git.master_jit, rfc.property-hooks
array(4) { [0]=> int(2) [1]=> int(4) [2]=> int(6) [3]=> int(8) }

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