Question

我正在尝试删除我的多维数组的子数组，如果任何值为空，则删除整个子数组。我想要一个通用的功能！不想键入特定键。而不是ReIndex新形成的阵列。

我的数组就像

Array
(
    [0] => Array
        (
            [name] => Test
            [mobile] => 613594551
            [email] => test@test.com
        )
    [1] => Array
        (
            [name] => Test1
            [mobile] => 613594552
            [email] => test2@test.com
        )
    [2] => Array
        (
            [name] => Test2
            [mobile] => 613594553
            [email] => test3@test.com
        )
    [3] => Array
        (
            [name] => Test3
            [mobile] => 613594554
            [email] => test4@test.com
        )
)

所以如果我的数组是

Array
(
    [0] => Array
        (
            [name] => 
            [mobile] => 613594551
            [email] => test@test.com
        )
    [1] => Array
        (
            [name] => Test1
            [mobile] => 
            [email] => test2@test.com
        )
    [2] => Array
        (
            [name] => Test2
            [mobile] => 613594553
            [email] => 
        )
    [3] => Array
        (
            [name] => Test3
            [mobile] => 613594554
            [email] => test4@test.com
        )
)

比显示

Array
(
    [0] => Array
        (
            [name] => Test3
            [mobile] => 613594554
            [email] => test4@test.com
        )
)

Answer 1

阐述Martin的答案，您可以对源数组和嵌套数组使用$filtered_array = array_filter($array, function($item){ return count($item) == count(array_filter($item)); }); sort($filtered_array); // to reindex：

{{1}}

工作示例：https://eval.in/521449

Answer 2

使用array_filter()迭代每个人的所有记录，并删除那些具有空值的记录。如果填写了所有记录，则array_filter()之前和之后的记录数必须相等。如果他们没有使用unset()删除此人。

请注意，此函数可以就地工作，因此它会修改原始数组。

<?php

$array = [
    [
        'name' => 'Test1',
        'mobile' => 123456789,
        'email' => null
    ], [
        'name' => 'Test2',
        'mobile' => 123456789,
        'email' => 'test2@test.com'
    ], [
        'name' => null,
        'mobile' => 123456789,
        'email' => 'test3@test.com'
    ],
];

function removeEmpty(&$arr) {
    foreach ($arr as $index => $person) {
        if (count($person) != count(array_filter($person, function($value) { return !!$value; }))) {
            unset($arr[$index]);
        }
    }
}

removeEmpty($array);

print_r($array);

打印：

Array
(
    [1] => Array
        (
            [name] => Test2
            [mobile] => 123456789
            [email] => test2@test.com
        )

)

Answer 3

假设数组项可能有不同的键：

    $array = array(
        0=>array('name'=>'','test'=>2),
        1=>array('name'=>'sadad','test'=>2),
        );

    foreach($array as $index=>$item) {
        $keys = array_keys($item); //here is the assumption
        //you can define it before the foreach
        //by checking the first array if YOU are 100% sure
        //all items in the array have the same keys: name, mobile, email
        foreach($keys as $key) {
            if(empty($item[$key])) {
                unset($array[$index]);
                break;
            }
        }
    }
var_dump($array);

输出：

array(1) {
  [1]=>
  array(2) {
    ["name"]=>
    string(5) "sadad"
    ["test"]=>
    int(2)
  }
}

多维数组元素如果为空则删除整个子数组PHP

3 个答案: