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array_unshift
(PHP 4, PHP 5, PHP 7)
array_unshift — Prepend one or more elements to the beginning of an array
Description
array_unshift() prepends passed elements to the front
of the array. Note that the list of elements is
prepended as a whole, so that the prepended elements stay in the same
order. All numerical array keys will be modified to start counting from
zero while literal keys won't be changed.
Changelog
| Version | Description |
|---|---|
| 7.3.0 | This function can now be called with only one parameter. Formerly, at least two parameters have been required. |
Examples
Example #1 array_unshift() example
<?php
$queue = array("orange", "banana");
array_unshift($queue, "apple", "raspberry");
print_r($queue);
?>
The above example will output:
Array
(
[0] => apple
[1] => raspberry
[2] => orange
[3] => banana
)
See Also
- array_shift() - Shift an element off the beginning of array
- array_push() - Push one or more elements onto the end of array
- array_pop() - Pop the element off the end of array
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