The Ds\Deque::push() function is an inbuilt function in PHP which is used to add the elements to the Deque by appending an element at the end of the Deque.
Syntax:
public Ds\Deque::push( $values ) : void
Parameters: This function accepts single parameter $values which holds the elements to be added to the Deque.
Return Value: This function does not return any values.
Below programs illustrate the Ds\Deque::push() function in PHP:
Program 1:
<?php   // Declare a deque $deck = new \Ds\Deque([10, 20, 30, 40, 50, 60]);   echo("Elements of Deque\n");   // Display the Deque elements print_r($deck);   echo("\nAdding 70 in the deque\n");   // Use push() function to add elements $deck->push(70);   echo("\nElements of Deque\n");   // Display the Deque elements print_r($deck);   ?> |
Output:
Elements of Deque
Ds\Deque Object
(
[0] => 10
[1] => 20
[2] => 30
[3] => 40
[4] => 50
[5] => 60
)
Adding 70 in the deque
Elements of Deque
Ds\Deque Object
(
[0] => 10
[1] => 20
[2] => 30
[3] => 40
[4] => 50
[5] => 60
[6] => 70
)
Program 2:
<?php   // Declare a deque $deck = new \Ds\Deque([10, 20, 30, 40, 50, 60]);   echo("Elements of Deque\n");   // Display the Deque elements print_r($deck);   echo("\nAdding elements in the deque\n");   // Use push() function to add elements $deck->push(...[70, 80, 90, 100]);   echo("\nElements of Deque\n");   // Display the Deque elements print_r($deck);   ?> |
Output:
Elements of Deque
Ds\Deque Object
(
[0] => 10
[1] => 20
[2] => 30
[3] => 40
[4] => 50
[5] => 60
)
Adding elements in the deque
Elements of Deque
Ds\Deque Object
(
[0] => 10
[1] => 20
[2] => 30
[3] => 40
[4] => 50
[5] => 60
[6] => 70
[7] => 80
[8] => 90
[9] => 100
)
Reference: http://php.net/manual/en/ds-deque.push.php
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