Question

我得到了一个看起来像这样的数组：

[0] => Array (
    [status] => success
    [field] => voornaam
    )
[1] => Array (
    [status] => success
    [field] => achternaam
    )
[2] => Array (
    [status] => success
    [field] => telefoon
    )
[3] => Array (
    [status] => error
    [field] => email
    [message] => Vul een email in
    )
[4] => Array (
    [status] => success
    [field] => huisnummer
    )
[5] => Array (
    [status] => success
    [field] => postcode
    )
[6] => Array (
    [status] => success
    [field] => straat
    )
[7] => Array (
    [status] => success
    [field] => woonplaats
    )

我想检查error是否存在于那些数组中。我该怎么办？

这是数组的构建方式：

if (empty($accountform['voornaam'])) {
    $return[] = array('status' => 'error', 'field' => 'voornaam', 'message' => 'Vul een voornaam in');
} else {
    $return[] = array('status' => 'success', 'field' => 'voornaam');
}

if (empty($accountform['achternaam'])) {
    $return[] = array('status' => 'error', 'field' => 'achternaam', 'message' => 'Vul een achternaam in');
} else {
    $return[] = array('status' => 'success', 'field' => 'achternaam');
}

if (empty($accountform['telefoon'])) {
    $return[] = array('status' => 'error', 'field' => 'telefoon', 'message' => 'Vul een telefoonnummer in');
} else {
    $return[] = array('status' => 'success', 'field' => 'telefoon');
}

if (empty($accountform['email'])) {
    $return[] = array('status' => 'error', 'field' => 'email', 'message' => 'Vul een email in');
}else if(!filter_var($accountform['email'], FILTER_VALIDATE_EMAIL)){
    $return[] = array('status' => 'error', 'field' => 'email', 'message' => 'Vul een geldig emailadres in');
} else {
    $return[] = array('status' => 'success', 'field' => 'email');
}

if (empty($accountform['huisnummer'])) {
    $return[] = array('status' => 'error', 'field' => 'huisnummer', 'message' => 'Vul een huisnummer in');
} else {
    $return[] = array('status' => 'success', 'field' => 'huisnummer');
}

if (empty($accountform['postcode'])) {
    $return[] = array('status' => 'error', 'field' => 'postcode', 'message' => 'Vul een postcode in');
} else {
    $return[] = array('status' => 'success', 'field' => 'postcode');
}

if (empty($accountform['straat'])) {
    $return[] = array('status' => 'error', 'field' => 'straat', 'message' => 'Vul een straat in');
} else {
    $return[] = array('status' => 'success', 'field' => 'straat');
}

if (empty($accountform['woonplaats'])) {
    $return[] = array('status' => 'error', 'field' => 'woonplaats', 'message' => 'Vul een woonplaats in');
} else {
    $return[] = array('status' => 'success', 'field' => 'woonplaats');
}

我尝试过：

if (in_array('error', $return)) {
    echo "There is an error";
}

但是if语句永远不会触发。

Answer 1

$status_rows = array_column($your_array,'status');
var_dump(in_array('error',$status_rows));

您可以使用array_column来获取所有状态，并使用in_array来检查它的存在。

Answer 2

您可以使用array_search并检查其是否存在

$key = array_search('error', array_column($return, 'status'));
if($key){
   echo 'found';
}else{
   echo 'not found';
}

Answer 3

您的代码为什么不起作用，是因为$ result在另一个数组中有值，例如[0]和[1]等，如此..

Array
(
    [0] => Array
        (
            [status] => error
            [field] => telefoon
            [message] => Vul een telefoonnummer in
        )

    [1] => Array
        (
            [status] => success
            [field] => achternaam
        )

)

因此，如果您希望代码能够正常工作，则需要$ result [0]，$ result [1]等。因此，您的代码应位于foreach循环内

foreach ($return as $key => $value) {
    if (in_array('error', $value)) {
        echo "There is an error";
    }
}

$ value现在有$ result数据，没有[0] [1]，现在可以与in_array fn进行比较。

如何检查键相同的多个数组中是否存在值

3 个答案: