php函数current和next
作者:
IARNO | 来源:发表于
2018-11-12 15:15 被阅读0次
current
输出数组中的当前元素
next
输出数组下一个元素的值
案例一:
<?php
$people = array("Bill", "Steve", "Mark", "David");
echo current($people) . "<br>";
echo next($people);
#输出结果
Bill
Steve
案例二:
$arr1 = array(XXXX);
$arr2 = array(XXXX);
$res = array();
$notId = array();
foreach ($arr2 as $key2 => $val2) {
$res[$val2] = (int) current($arr1); //每次循环时返回arr1的当前值
if (current($arr1) == false) {
$notId[] = $val2;
}
next($arr1);//将arr1的指针移到下一个值
}
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