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?

Answer 1

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

Answer 2

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.

Answer 3

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

Answer 4

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'];

Answer 5

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);

Answer 6

i use php5.6

code :

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

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

print_r($person) 

output

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

Answer 7

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!

Answer 8

只需更改几个片段（使用 array_merge 函数）：-

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

Answer 9

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

Answer 10

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.

Answer 11

你可以试试。

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

Answer 12

First of all, you need to define an array

 $myArray= array();

Then you can push anything to your array, here I try with an associative array

    array_push( $myArray ,array('id'=>23, 'category'=>'aaa'));

You can see the changed array in php:

print_r($myArray);

Result: Array ( [0] => Array ( [id] => 23 [category] => aaa ) )

Answer 13

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 )