[英]Get values of same key from multiple array in php
我正在尝试从多个数组中分离出数组中的“ TID”,但找不到有效的解决方案。
我在一个变量中具有以下类型的数组:
Array
(
[0] => Array
(
[tid] => 168
)
)
Array
(
[0] => Array
(
[target_id] => 14
)
[1] => Array
(
[target_id] => 15
)
[2] => Array
(
[target_id] => 37
)
)
Array
(
)
Array
(
[0] => Array
(
[target_id] => 36
)
)
Array
(
[0] => Array
(
[target_id] => 14
)
[1] => Array
(
[target_id] => 15
)
)
Array
(
[0] => Array
(
[target_id] => 36
)
)
Array
(
[0] => Array
(
[tid] => 168
)
[1] => Array
(
[tid] => 167
)
)
这些值在一个变量中,并且可以有无限个数组。
和预期的输出:
Array
(
[0] => Array
(
[tid] => 168
)
[1] => Array
(
[tid] => 168
)
[2] => Array
(
[tid] => 167
)
)
您正在搜索array_column 。
这是语法
array array_column ( array $input , mixed $column_key [, mixed $index_key = null ] )
描述
array_column — Return the values from a single column in the input array
范例:
$records = array(
array(
tid => 167
),
array(
'id' => 3245,
'first_name' => 'Sally',
tid => 166
),
array(
'id' => 5342,
'first_name' => 'Jane',
tid => 168
),
array(
'id' => 5623,
'first_name' => 'Peter',
tid => 169
)
);
$ids= array_column($records, 'tid');
输出:
Array
(
[0] => 167
[1] => 166
[2] => 168
[3] => 169
)
如果您有更多的阵列,
$records1 = [ ['tid' => 169]];
$ids1 = array_column($records1, 'tid');
那么你可以做array_merge 。
$ids = array_merge($ids, $ids1);
输出:
Array
(
[0] => 167
[1] => 166
[2] => 168
[3] => 169
[4] => 169
)
$arr1= array("1"); // first
$arr2 = array("2") // second array
$new = array();
foreach($arr1 as $key=>$value){
if($key=="yourkey"){
$new[]=$value;
}
}
foreach($arr2 as $ke2=>$valu2){
if($key2=="yourkey"){
$new[]=$value2;
}
}
print_r($new);
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