📅  最后修改于: 2022-03-11 14:53:49.585000             🧑  作者: Mango
//pre-calculate the size of array
$size = count($x); //or $size = sizeOf($x);
for ($i=0; $i<$size; $i++) {
//...
}
//don't pre-calculate
for ($i=0; $i