0
<?php
    session_start();    
    $_SESSION['del']=array("a1","a2","a3","a4","a5");
    unset($_SESSION['del'][0]);
    echo implode(" ",$_SESSION['del'])    
?>

每次刷新页面时如何逐个删除每个数组元素?

4

3 回答 3

1
if(isset($_SESSION['del']))
{
 if(is_array($_SESSION['del']))
 {
  array_shift($_SESSION['del']);
 }
}

代码说明

如果当前设置了会话 del。

并且 session['del'] 是一个数组

删除数组 del 的第一个值。

于 2013-09-12T02:12:26.603 回答
1

这是代码

<?php
session_start();    
if(isset($_SESSION['del'])) {  // to make sure array is not set again as in question
    unset($_SESSION['del'][0]); // remove the first element
    $_SESSION['del'] = array_values($_SESSION['del']); // to shift rest of the elements one location left for making indexes starts from 0
} else { // set session array only once
    $_SESSION['del']=array("a1","a2","a3","a4","a5");
}
echo implode(" ",$_SESSION['del']); // print results    
?>
于 2013-09-12T01:59:36.247 回答
0

我不确定它是否适用于$_SESSION,但如果它是一个数组,那么array_shift()这就是你要找的:

array_shift($_SESSION['del']);
于 2013-09-12T01:35:53.130 回答