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<?php $array = array( 0 => array( 'key1' => '123', 'key2' => 'values we', 'key3' => 'do not', 'key4' => 'care about' ), 1 => array( 'key1' => '124', 'key2' => 'values we', 'key3' => 'do not', 'key4' => 'care about' ), 2 => array( 'key1' => '125', 'key2' => 'values we', 'key3' => 'do not', 'key4' => 'care about' ) ); echo max(array_column($array, 'key1'));
Output for git.master, git.master_jit, rfc.property-hooks
125

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