在PHP中按子数组的值对数组进行排序

您可以将usort函数用作：

$arr = array(     array("105945","First name",0.080878465391),     array("109145","Second name",0.0504154818384) );function cmp($a, $b) {        if ($a[2] == $b[2]) {     return 0;        }        return ($a[2] < $b[2]) ? -1 : 1;}usort($arr,"cmp");