PHP中的array_multisort问题

Question

I am using this line to sort my two dimensional array in ascending order based on name field.

 array_multisort($contact[0]['name'],SORT_DESC,$contact[0]['image'],$contact[0]['url'],$contact[0]['catimg'],$contact[0]['count']);

But some times its not sorting correctly.

Whats wrong in it ?

Thanks

Answer 1

You will have to make columns of data if you want to use array_multisort to work, in outline it will look like this:

$names = array();
$images = array();
$urls = array();
// ... add more as needed
// make rows of data for sorting
foreach ($contact as $contact_row) {
    $names[]  = $contact_row['name'];
    $images[] = $contact_row['image'];
    $urls[]   = $contact_row['url'];
    // ... add more as needed
}
array_multisort($names, SORT_DESC, $images, $urls, $contact); // the last one is the array you want to sort

var_export($contact); // at this point this should be ordered

Answer 2

Seems, thats arguments passed to function are not arrays.

Try use usort:

usort($contact, function($a, $b){
    return strcmp($a['name'], $b['name']);
});