Push item to associative array in PHP

Question

I've been trying to push an item to an associative array like this:

$new_input['name'] = array(
    'type' => 'text', 
    'label' => 'First name', 
    'show' => true, 
    'required' => true
);
array_push($options['inputs'], $new_input);

However, instead of 'name' as the key in adds a number. Is there another way to do it?

It is not possible push an array into another array. I've tried all this options and the merge just added the array. I solved my problem with a Class. — Alex Benincasa Santos, Jun 05 '17 at 23:29

score 148 · Accepted Answer · answered Jul 08 '10 at 16:50

148

$options['inputs']['name'] = $new_input['name'];

answered Jul 08 '10 at 16:50

webbiedave

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The simplest solution is often the best solution – jpcaparas Oct 20 '21 at 00:02

score 70 · Answer 2 · edited Mar 16 '19 at 12:54

70

Instead of array_push(), use array_merge()

It will merge two arrays and combine their items in a single array.

Example Code -

$existing_array = array('a'=>'b', 'b'=>'c');
$new_array = array('d'=>'e', 'f'=>'g');

$final_array=array_merge($existing_array, $new_array);

Its returns the resulting array in the final_array. And results of resulting array will be -

array('a'=>'b', 'b'=>'c','d'=>'e', 'f'=>'g')

Please review this link, to be aware of possible problems.

edited Mar 16 '19 at 12:54

Heemanshu Bhalla

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answered Mar 16 '12 at 10:35

Murtaza Khursheed Hussain

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2

actually it should be $existing_array = array('a'=>'b', 'b'=>'c'); $new_array = array('d'=>'e', 'f'=>'g'); $result = array_merge($existing_array, $new_array); – Calvin Chan Aug 29 '13 at 02:21
1

well it is a common sense to collect output. I was just giving the idea. Regards – Murtaza Khursheed Hussain Aug 29 '13 at 07:44

Ajmal Salim · Answer 3 · 2019-11-07T03:55:24.867

22

This is a cool function

function array_push_assoc($array, $key, $value){
   $array[$key] = $value;
   return $array;
}

Just use

$myarray = array_push_assoc($myarray, 'h', 'hello');

Credits & Explanation

edited Nov 07 '19 at 03:55

answered Dec 09 '13 at 10:15

Ajmal Salim

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score 7 · Answer 4 · answered Jul 08 '10 at 16:55

7

WebbieDave's solution will work. If you don't want to overwrite anything that might already be at 'name', you can also do something like this:

$options['inputs']['name'][] = $new_input['name'];

answered Jul 08 '10 at 16:55

Curtis

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This doesn't work if you don't want to keep everything associative, e.g. without pushing other numbered arrays in between. Have a look at @Steven H below – brianlmerritt Aug 31 '17 at 09:25

score 5 · Answer 5 · answered Jul 08 '10 at 17:03

If $new_input may contain more than just a 'name' element you may want to use array_merge.

$new_input = array('name'=>array(), 'details'=>array());
$new_input['name'] = array('type'=>'text', 'label'=>'First name'...);
$options['inputs'] = array_merge($options['inputs'], $new_input);

score 5 · Answer 6 · edited Jan 08 '19 at 08:46

5

i use php5.6

code:

$person = ["name"=>"mohammed", "age"=>30];

$person['addr'] = "Sudan";

print_r($person)

output

Array( ["name"=>"mohammed", "age"=>30, "addr"=>"Sudan"] )

edited Jan 08 '19 at 08:46

Feras Al Sous

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answered Jan 08 '19 at 07:28

ebnibrahem

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score 3 · Answer 7 · edited May 23 '12 at 08:19

Curtis's answer was very close to what I needed, but I changed it up a little.

Where he used:

$options['inputs']['name'][] = $new_input['name'];

I used:

$options[]['inputs']['name'] = $new_input['name'];

Here's my actual code using a query from a DB:

while($row=mysql_fetch_array($result)){ 
    $dtlg_array[]['dt'] = $row['dt'];
    $dtlg_array[]['lat'] = $row['lat'];
    $dtlg_array[]['lng'] = $row['lng'];
}

Thanks!

vineet · Answer 8 · 2015-09-11T07:53:47.843

2

Just change few snippet(use array_merge function):-

  $options['inputs']=array_merge($options['inputs'], $new_input);

edited Sep 11 '15 at 07:53

answered Apr 22 '15 at 06:39

vineet

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score 1 · Answer 9 · answered Jul 08 '10 at 16:51

1

$new_input = array('type' => 'text', 'label' => 'First name', 'show' => true, 'required' => true);
$options['inputs']['name'] = $new_input;

answered Jul 08 '10 at 16:51

Ryan Kinal

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score 1 · Answer 10 · answered Sep 17 '18 at 19:16

There is a better way to do this:

If the array $arr_options contains the existing array.

$arr_new_input['name'] = [
    'type' => 'text', 
    'label' => 'First name', 
    'show' => true, 
    'required' => true
];

$arr_options += $arr_new_input;

Warning: $arr_options must exist. if $arr_options already has a ['name'] it wil be overwritten.

Hope this helps.

score 0 · Answer 11 · answered Oct 01 '17 at 19:01

0

You can try.

$options['inputs'] = $options['inputs'] + $new_input;

answered Oct 01 '17 at 19:01

Adnan Ahmad

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score -1 · Answer 12 · answered Mar 20 '18 at 09:14

-1

You can use array_merge($array1, $array2) to merge the associative array. Example:

$a1=array("red","green");
$a2=array("blue","yellow");
print_r(array_merge($a1,$a2));

Output:

Array ( [0] => red [1] => green [2] => blue [3] => yellow )

answered Mar 20 '18 at 09:14

Mamun Sabuj

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Push item to associative array in PHP

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