Ds\Deque::shift
Removes and returns the first value.
Description
public mixed Ds\Deque::shift
( void
)
Parameters
This function has no parameters.
Return Values
The first value, which was removed.
Errors/Exceptions
UnderflowException if empty.
Examples
Example #1 Ds\Deque::shift example
<?php
$deque = new \Ds\Deque(["a", "b", "c"]);
var_dump($deque->shift());
var_dump($deque->shift());
var_dump($deque->shift());
?>
The above example will output
something similar to:
string(1) "a"
string(1) "b"
string(1) "c"