如何将数组键作为另一个数组键的值以及如何在PHP中创建新数组？ [关闭]

I'm having an array called $request as follows:

   Array
(
    [op] => edit
    [contact_label] => 1
    [80] => on
    [79] => on
    [76] => on
    [74] => on
    [73] => on
)

Now what I want to achieve is two things as follows:

1. Create a new simple array having name $enquiries which would contain all the numbers (keys from above array) i.e. 73,74,76, 79 and 80.

2. Create a new key within this array called [enquiries] which would hold all the above said numbers. Also remove the current keys with numbers from the $request array.

Can anyone help me in this regard?

Try this Fiddle

<?php
$request = array( 'op' => 'edit'
                ,'contact_label' => 1
                ,80 => 'on'
                ,79 => 'on'
                ,76 => 'on'
                ,74 => 'on'
                ,73 => 'on'
);



$enquiries = array();
foreach($request as $key => $value) {
    if(is_numeric($key)) {
        $enquiries[] = $key;
        unset($request[$key]);
    }
}

$request['enquiries'] = $enquiries;

echo "<pre>";
print_r($request);
?>

Output

Array
(
    [op] => edit
    [contact_label] => 1
    [enquiries] => Array
        (
            [0] => 80
            [1] => 79
            [2] => 76
            [3] => 74
            [4] => 73
        )

)

You can use array_keys() to store the keys of one array into another.

So what you could to do store the keys in your original array would be something like:

$request_keys = array_filter(array_keys($request), function($k){ return is_int($k); });
$request['enquiries'] = $request_keys;

$request = array_filter($request, function($k){ return !is_int($k); });

Edit: Filters numeric only keys for the enquiries index and also removes the numeric keys from the $requests array after the process.

$enquiries = array();
foreach($request as $key => $value) {
    if(is_numeric($key) {
        $enquiries[] = $key;
        unset($request[$key]);
    }
}

$request['enquiries'] = $enquiries;

$array = array( 'op' => 'edit'
                ,'contact_label' => 1
                ,80 => 'on'
                ,79 => 'on'
                ,76 => 'on'
                ,74 => 'on'
                ,73 => 'on'
);

foreach( $array as $key => $value ) {
    if ( is_numeric( $key ) ) {
        $array['enquiries'][] = $key;
        unset( $array[$key] );
    }
}

Output:

Array
(
    [op] => edit
    [contact_label] => 1
    [enquiries] => Array
        (
            [0] => 80
            [1] => 79
            [2] => 76
            [3] => 74
            [4] => 73
        )

)

<?php
$enquiries = array();
foreach( $request as $key => $val ) {
    if ( is_numeric( $key ) ) {
        array_push( $enquiries, $key );
        unset( $request[$key] );
    }
}
$enquiries['enquiries'] = $enquiries;