Add data dynamically to an Array

Question

I want to add data to an array dynamically. How can I do that? Example

$arr1 = [
    \'aaa\',
    \'bbb\',
    \'ccc\',
];
// How can I now add another value?         


        

Answer 1

Let's say you have defined an empty array:

$myArr = array();

If you want to simply add an element, e.g. 'New Element to Array', write

$myArr[] = 'New Element to Array';

if you are calling the data from the database, below code will work fine

$sql = "SELECT $element FROM $table";
$query = mysql_query($sql);
if(mysql_num_rows($query) > 0)//if it finds any row
{
   while($result = mysql_fetch_object($query))
   {
      //adding data to the array
      $myArr[] = $result->$element;
   }
}

Answer 2

Fastest way I think

       $newArray = array();

for($count == 0;$row = mysql_fetch_assoc($getResults);$count++)
    {
    foreach($row as $key => $value)
    { 
    $newArray[$count]{$key} = $row[$key];
    }
}

Answer 3

In additon to directly accessing the array, there is also

array_push — Push one or more elements onto the end of array

Answer 4

$array[] = 'Hi';

pushes on top of the array.

$array['Hi'] = 'FooBar';

sets a specific index.

Answer 5

There are quite a few ways to work with dynamic arrays in PHP. Initialise an array:

$array = array();

Add to an array:

$array[] = "item"; // for your $arr1 
$array[$key] = "item"; // for your $arr2
array_push($array, "item", "another item");

Remove from an array:

$item = array_pop($array);
$item = array_shift($array);
unset($array[$key]);

There are plenty more ways, these are just some examples.

Answer 6

You should use method array_push to add value or array to array exists

$stack = array("orange", "banana");
array_push($stack, "apple", "raspberry");
print_r($stack);

/** GENERATED OUTPUT
Array
(
    [0] => orange
    [1] => banana
    [2] => apple
    [3] => raspberry
)
*/