从 Session 数组中删除一个值答案

【问题标题】：Remove a value from Session array从 Session 数组中删除一个值
【发布时间】：2015-12-19 05:13:08
【问题描述】：

如何使用表中的删除链接从会话数组中删除一个值。

//在文件A中

< ?php
$_SESSION['cart']['prices'][] = "1000";
$_SESSION['cart']['services'][] = "game 1";
$_SESSION['cart']['prices'][] = "2000";
$_SESSION['cart']['services'][] = "game 2";
$_SESSION['cart']['prices'][] = "3000";
$_SESSION['cart']['services'][] = "game 3";
$_SESSION['cart']['prices'][] = "4000";
$_SESSION['cart']['services'][] = "game 4";
?>

//在文件B中

< table border="1">
< thead>
< th style="width: 450px; text-align:center;">Services< /th>
< th style="width: 450px; text-align:center;">Price< /th>
< th style="width: 450px; text-align:center;">Delete item< /th>
< /thead>
< tbody>
< ?php
foreach ($_SESSION['cart']['services'] as $key => $service) {
    echo "< tr>< td>".$service."< /td>< td style='text-align:center;'>".$_SESSION['cart']['prices'][$key]."< /td>< td>ckick to remove< /td>< /tr>";
}
?>
< /tbody>
< /table>

【问题讨论】：

用'unset()'试试？
例如unset($_SESSION['cart']['services']);
更好unset($_SESSION['cart']['services'][$indexToRemove]);
但我想删除特定的服务和价格。怎么可能？'
只需使用$_SESSION['cart']['services'][$index] = null; 或unset($_SESSION['cart']['services']);

标签： php arrays session

【解决方案1】：

使用unset() 重置会话值：

unset($_SESSION['cart']['services']);

【讨论】：