php 删除数组中指定元素，重建索引 转

Array
(
    [0] => 321
    [1] => 322
    [2] => 323
    [4] => 325
    [5] => 326
)

foreach( $arr as $k=>$v) {
    if($tmp == $v) unset($arr[$k]);
}
$arr = array_values($arr);

foreach( $arr as $k=>$v) {
    if($tmp == $v) unset($arr[$k]);
}
$arr = array_merge($arr);