在key/value的基础上将数组分组到另一个数组中

I am in the situation where I want to group the arrays in PHP to group on the base of there group ID, What I am getting is the following

我想要在PHP中对数组进行分组，然后在这个组ID的基础上进行分组，得到的结果如下

Array ( 

[0] => Array ( 
[raw] => I am text string 
[group_id] => 1 
) 

[1] => Array ( 
[raw] => Another text string 
[group_id] => 1 
) 

[2] => Array ( 
[raw] => text placeholder 
[group_id] => 2 
)

)

but I want the output like below

但我希望输出如下所示

Array ( 

[0] => Array ( 

Array(
[0] => Array (
[raw] => I am text string 
[group_id] => 1 
) 
[1] => Array ( 
[raw] => Another text string 
[group_id] => 1 
) 

)

[1] => Array ( 
[raw] => text placeholder 
[group_id] => 2 
)

)

In the current output, You can notice that 'group_id' of the first two array elements are the same i.e. 1, and in the expected output the elements with the same 'group_id' are wrapped into a parent array.

在当前输出中，您可以注意到前两个数组元素的“group_id”是相同的，即1，在预期输出中，具有相同“group_id”的元素被封装到父数组中。

for your consideration, here is the array code;

请注意，这里是数组代码;

<?php    
$output = array(
array ("raw"=> "I am text string", "group_id" => 1), 
array ("raw"=> "Another text string", "group_id" => 1), 
array ("raw"=> "text placeholder", "group_id" => 2), 
);
print_r($output);
?>

So ultimately, I want to group the arrays with same 'group_id' into another array.

最后，我想将具有相同'group_id'的数组分组到另一个数组中。

Thank you in advance for your time and help.

提前感谢您的时间和帮助。

any help is appreciated as I am not getting the logic.

感谢您的帮助，因为我不明白其中的逻辑。

3 个解决方案

#1

I don't think there is a shortcut for trimming nested dimensions for single/lone group id's but you could do something like this:

我不认为有捷径可以为单个/单个组id调整嵌套维度，但您可以这样做:

$output = array(
    array ("raw"=> "I am text string", "group_id" => 1),
    array ("raw"=> "Another text string", "group_id" => 1),
    array ("raw"=> "text placeholder", "group_id" => 2),
);

$new = array();
foreach ($output as $value) {
    $new[$value['group_id']][] = $value;
}
// trim single/lone arrays
foreach ($new as &$value) {
    if(count($value) <= 1) {
        $value = reset($value);
    }
}

echo '<pre>';
print_r($new);

3 个解决方案

#1

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