Sort array of objects by object fields

Question

How can I sort this array of objects by one of its fields, like name or count ?

  Array
(
    [0] => stdClass Object
        (
          


        

Answer 1

You can use this function (works in PHP Version >= 5.3):

function sortArrayByKey(&$array,$key,$string = false,$asc = true){
    if($string){
        usort($array,function ($a, $b) use(&$key,&$asc)
        {
            if($asc)    return strcmp(strtolower($a{$key}), strtolower($b{$key}));
            else        return strcmp(strtolower($b{$key}), strtolower($a{$key}));
        });
    }else{
        usort($array,function ($a, $b) use(&$key,&$asc)
        {
            if($a[$key] == $b{$key}){return 0;}
            if($asc) return ($a{$key} < $b{$key}) ? -1 : 1;
            else     return ($a{$key} > $b{$key}) ? -1 : 1;

        });
    }
}

Example:

sortArrayByKey($yourArray,"name",true); //String sort (ascending order)
sortArrayByKey($yourArray,"name",true,false); //String sort (descending order)
sortArrayByKey($yourArray,"id"); //number sort (ascending order)
sortArrayByKey($yourArray,"count",false,false); //number sort (descending order)