php sort array by field code example

Example 1: php sort array by key

$weight = [
    'Pete' => 75, 
    'Benjamin' => 89,
    'Jonathan' => 101
  ];  	
  ksort($weight);

Example 2: sort array by field

function cmp($a, $b)
{
    return strcmp($a["title"], $b["title"]);
}

usort($array, "cmp");