PHP array_filter()で連想配列から特定の値を削除するサンプル
環境
PHP 8.1.2
Ubuntu 22.04.1 LTS
構文
//arr=対象の連想配列, target=削除する値
$result = array_filter($arr, function ($value) { return $value !== target; });
array_filter()の第１引数に対象の連想配列、第２引数に１つの引数を持つ関数を指定します。
使用例
<?php
$numbers = [
"one" => 1,
"ss" => 3,
"two" => 2,
"three" => 3,
"dd" => 3,
"三" => 3,
"kd" => 4,
"su" => 5,
"ggg" => 3,
];
$result = array_filter($numbers, function ($value) { return $value !== 3; });
print_r($result);
?>
<?php
$numbers = [
"one" => 1,
"ss" => 3,
"two" => 2,
"three" => 3,
"dd" => 3,
"三" => 3,
"kd" => 4,
"su" => 5,
"ggg" => 3,
];
$result = array_filter($numbers, function ($value) { return $value !== 3; });
print_r($result);
?>
<?php
$numbers = [
"one" => 1,
"ss" => 3,
"two" => 2,
"three" => 3,
"dd" => 3,
"三" => 3,
"kd" => 4,
"su" => 5,
"ggg" => 3,
];
$result = array_filter($numbers, function ($value) { return $value !== 3; });
print_r($result);
?>
実行結果
Array
(
[one] => 1
[two] => 2
[kd] => 4
[su] => 5
)
Array
(
[one] => 1
[two] => 2
[kd] => 4
[su] => 5
)
Array
(
[one] => 1
[two] => 2
[kd] => 4
[su] => 5
)