The **`Stack::push()` function** in PHP is used to insert an element or list of elements at the top of the stack. 

Figure 1 shows a visual representation of the `Stack::push()` function.


# 
#  Syntax
```php
stack_name->push(element(s))
#  where the stack_name is the name of the stack
```
# 
## Parameter
This function requires an element or list of elements separated by commas as a parameter.
> The elements can be of mixed data type.

##
## Return value
This function inserts the element or list of elements sent as a parameter at the top of the stack.

##
## Example



<?php
$stack = new \Ds\Stack();
#sending the list of elements 
$stack->push(1,3,5,2);
echo("Stack before 0");
print_r($stack);
#sending single element of different data type
$stack->push("zero");
echo("Stack after 0");
print_r($stack);
?>	


## Output
```terminal
Stack before 0Ds\Stack Object
(
[0] => 2
[1] => 5
[2] => 3
[3] => 1
)
Stack after 0Ds\Stack Object
(
[0] => zero
[1] => 2
[2] => 5
[3] => 3
[4] => 1
)
```

What is Ds\Stack::push() in PHP?

Syntax

Parameter

Return value

Example

Output