Ds\Deque::shift
(PECL ds >= 1.0.0)
Ds\Deque::shift — Removes and returns the first value
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"
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