对数组的元素进行排序[重复]

Question

This question already has an answer here:

• PHP: Sort an array by the length of its values? 8 answers

I have an array like the following:

$a= $array('PHP','HTML','JS','LARAVEL');

I want to sort the elements in the array, descending by the total number of characters of an element

$b= $array('LARAVEL','HTML','PHP','JS');

Please help me to descend the elements of the array, based on the number of characters in an array.

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Answer 1

You need to use usort():

function sort($a,$b){
    return strlen($b)-strlen($a);
}
$array = ['PHP','HTML','JS','LARAVEL'];
usort($array,'sort');