在给定结构中的php中对多维数组进行排序

Question

I have an array like this:

$myarray = array (
    array(
        array('Restaurant' =>
            array(
                'name' => 'Rodeo Ranch',
                'distance' => 1.2
            ),
        ),
        array('Menu' =>
            array(
                'title' => 'Steak with fries'
            )
        )
    ),
    array(
        array('Restaurant' =>
            array(
                'name' => 'City Bar',
                'distance' => 0.9
            ),
        ),
        array('Menu' =>
            array(
                'title' => 'Burger with Chicken'
            ),
            array(
                'title' => 'Hot-Dog'
            )
        )
    )
);

Now, I want to sort the array, that the nearest Restaurant is on top. I tried this:

$myarray = array_msort($myarray['Restaurant'], array('distance'=>SORT_ASC));

This does not work. Any help?

Unfortunately, I should not change the array because for further handling it needs to be in this structure.

Thank you for any hints and tips.

Answer 1

You could use a closure:

usort($myarray,function($a,$b) {
   if( $a['Restaraunt']['distance'] < $b['Restaraunt']['distance'] ) return -1;
   if( $a['Restaraunt']['distance'] > $b['Restaraunt']['distance'] ) return 1;
   return 0;
});