min and max in multidimensional-array

Question

hi i am trying to find min and max values of x and y how can i find this min and max functions is not working correctly

$dataPoints = array(
 array(\'x\' =&g         


        

Answer 1

Try something like this:

foreach($dataPoints as $point) {
    if (!isset($x) || $point['x'] > $x) {
        $x = $point['x'];
    }
    if (!isset($y) || $point['y'] > $y) {
        $y = $point['y'];
    }
}