How to implement two-dimensional array sorting in PHP?

Two-dimensional arrays are often encountered in PHP development, but their sorting is not as convenient as one-dimensional arrays using built-in functions. (For one-dimensional array sorting, please refer to another article on this site [Detailed explanation of array sorting functions in PHP] Summary]). The sorting of two-dimensional arrays requires us to write our own functions. Here UncleToo will share with you a PHP two-dimensional array sorting function:

Code:

Php code

functionarray_sort($arr,$keys,$type='asc'){  
$keysvalue= $new_array= array();  
foreach($arras$k=>$v){  
    $keysvalue[$k] = $v[$keys];  
}  
if($type== 'asc'){  
    asort($keysvalue);  
}else{  
    arsort($keysvalue);  
}  
reset($keysvalue);  
foreach($keysvalueas$k=>$v){  
    $new_array[$k] = $arr[$k];  
}  
return$new_array;  
}

The three parameters of the function:

$arr: Array to be sorted

$keys: Specify which key value to sort according to

$type: Sorting method, ascending or descending order, the default is ascending order

This PHP function can sort a two-dimensional array according to the specified key value, and Returns the sorted array.

Call example:

Php code

$newArray= array_sort($array,'price');