如何在php中获取关联数组的特定部分?

时间:2018-10-24 05:45:03

标签: php arrays laravel arraylist associative-array

我有类似的数组

$data = [
    'phone' => '9999999999',
    'body' => 'Sample Message',
    'caption' => 'Sample',
    'filename' => 'Sample File.PDF'
];

我想将数组中的特定部分放入另一个数组中,例如

$t_data = [
    'phone' => '9999999999',
    'body' => 'Sample Message'
];

该怎么做? 而且应该是单行功能

4 个答案:

答案 0 :(得分:1)

您可以使用laravel帮助器array_only():

$t_data = array_only($data, ["phone", "body"]);

答案 1 :(得分:0)

如果您要分割一个数组,可以这样做:

array_slice($data, 0, 2);

它将从零位置开始获取前两个值。

答案 2 :(得分:0)

尝试

 $t_data = [
    'phone' =>$data['phone'],
    'body'=>$data['body']

 ];

答案 3 :(得分:-1)

print_r(array_intersect_key($data, ['phone'=>0,'body'=>0]));

输出

Array
(
    [phone] => 9999999999
    [body] => Sample Message
)

Sandbox

或作为功能

function getArrayItems(array $array,$items,$separator=','){
     if(!is_array($items)) $items = array_filter(array_map('trim',explode($separator,$items)),function($i){
       return strlen($i);
     });
     return array_intersect_key($array, array_flip($items));
}

$data = [
    'phone' => '9999999999',
    'body' => 'Sample Message',
    'caption' => 'Sample',
    'filename' => 'Sample File.PDF'
];

print_r(getArrayItems($data, 'body')); // returns [body=>'Sample Message']
print_r(getArrayItems($data, ['body'])); // returns [body=>'Sample Message']
print_r(getArrayItems($data, ['body','caption'])); // returns [body=>'Sample Message','caption' => 'Sample']
print_r(getArrayItems($data, 'body,caption')); // returns [body=>'Sample Message','caption'=>'Sample']
print_r(getArrayItems($data, ' body , caption ')); // returns [body=>'Sample Message','caption'=>'Sample']
print_r(getArrayItems($data, 'body|caption','|')); // returns [body=>'Sample Message','caption'=>'Sample']

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