(PECL ds >= 1.0.0)
Ds\Sequence::shift โ Removes and returns the first value
ใใฎ้ขๆฐใซใฏใใฉใกใผใฟใฏใใใพใใใ
The first value, which was removed.
UnderflowException if empty.
ไพ1 Ds\Sequence::shift() example
<?php
$sequence = new \Ds\Vector(["a", "b", "c"]);
var_dump($sequence->shift());
var_dump($sequence->shift());
var_dump($sequence->shift());
?>ไธใฎไพใฎๅบๅใฏใ ใใจใใฐไปฅไธใฎใใใซใชใใพใใ
string(1) "a" string(1) "b" string(1) "c"