如何获取php、laravel中关联数组的特定部分？

Question

我有这样的数组

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

我想从数组中获取特定部分到另一个数组中，例如

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

怎么做？而且应该是单行函数

Answer 1

如果你想获取数组的一部分，你可以这样做：

array_slice($data, 0, 2);

从零位置开始取前两个值。

Answer 2

您可以使用 laravel 助手 array_only():

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

Answer 3

试试这个

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

 ];

Answer 4

像这样

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

输出

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

Sandbox

或作为函数

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']

Sandbox

如何获取php、laravel中关联数组的特定部分？

How to get a particular part of associative array in php, laravel?

php

arrays

associative-array

arraylist

laravel