PHP array_push() Function
Example
Insert "blue" and "yellow" at the end of the array:
<?php
$a=array("red","green");
array_push($a,"blue","yellow");
print_r($a);
?>
Definition and Usage
The array_push() function adds one or more elements (pushes) to the end of the array specified by the first parameter and then returns the length of the new array.
This function is equivalent to multiple calls to $array[] = $value.
Tips and Notes
Note:Even if the array has string keys, the elements you add are always numeric keys. (See Example 2)
Note:It is more efficient to use $array[] = instead of array_push() to add a single element to an array, as it does not incur the overhead of calling a function.
Note:If the first parameter is not an array, array_push() will issue a warning. This is different from the behavior of $var[], which will create a new array.
Syntax
array_push(array,value1,value2...)
| Parameters | Description |
|---|---|
| array | Required. Specify the array. |
| value1 | Required. Specify the value to be added. |
| value2 | Optional. Specify the value to be added. |
Technical Details
| Return Value: | Returns the number of elements in the new array. |
| PHP Version: | 4+ |
More Examples
Example 1
Array with String Keys:
<?php
$a=array("a"=>"red","b"=>"green");
array_push($a,"blue","yellow");
print_r($a);
?>
