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

I'm a Fan of the Underscore Library

http://brianhaveri.github.com/Underscore.php/#max

Not native but will save you from having write the function your self, plus many other functions :)

oh and it becomes a one-liner!

Example:

include_once 'underscore.php';

$dataPoints = array(
    array('x' => 2343, 'y' => 4322),
    array('x' => 103, 'y' => 303 ),
    array('x' => 2345,'y' => 2321 ),
    array('x' => 310, 'y' => 2044 ),
    array('x' => 173, 'y' => 793 ),
    array('x' => 456, 'y' => 2675),
    array('x' => 24, 'y' => 819 )
);


__::max($dataPoints, function($item) { return $item['x']; });    // array('x' => 2345,'y' => 2321 )
__::min($dataPoints, function($item) { return $item['y']; });    // array('x' => 103, 'y' => 303 )