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<?php $dataPoints = array( array('1' => '33','2' => 'dave','3' => '367'), array('1' => '168','2' => 'susan','3' => '56788'), array('1' => '99','2' => 'tim','3' => '6') ); function cmp($a, $b){ if ($a[3] == $b[3]) { return 0; } return ($a[3] < $b[3]) ? -1 : 1; } usort($dataPoints, "cmp"); print_r($dataPoints[0]);
Output for 4.3.0 - 5.3.10, 5.3.12 - 7.1.0
Array ( [1] => 99 [2] => tim [3] => 6 )
Output for 5.3.11

Process exited with code 137.