PHP 从数组中删除指定元素

时间:2021-11-23 00:41:56

<?php

$arr1 = array(1,3, 5,7,8);

$key = array_search(3, $arr1);

if ($key !== false){

  array_splice($arr1, $key, 1);

}

var_dump($arr1);

// array(4) { [0]=> int(1) [1]=> int(5) [2]=> int(7) [3]=> int(8) }

?>

<?php

$arr2 = array(1,3, 5,7,8);

foreach ($arr2 as $key=>$value)

{

  if ($value === 3){

    unset($arr2[$key]);

  }

}

var_dump($arr2);

// array(4) { [0]=> int(1) [2]=> int(5) [3]=> int(7) [4]=> int(8) }

?>