array_pop
(PHP 4 , PHP 5)
array_pop -- Pop the element off the end of array
Description
mixed
array_pop ( array &array)
array_pop() pops and returns the last value of
the array, shortening the
array by one element.
If array is empty (or is not an array),
NULL will be returned.
示範 1.array_pop() example
<?php $stack = array("orange", "banana", "apple", "raspberry"); $fruit = array_pop($stack); print_r($stack); ?>
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After this, $stack will have only 3 elements:
Array ( [0] => orange [1] => banana [2] => apple )
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and raspberry will be assigned to
$fruit.
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切記! |
這個函數可能回傳布林值 FALSE,但也可能回傳一個同於 FALSE 的非布林值,像是0或 ""請參考Booleans此節有更多資訊。使用 === 運算子來測試這個函數的回傳值。 |
See also array_push(),
array_shift(), and
array_unshift().