PHP更新購(gòu)物車數(shù)量(表單部分/PHP處理部分)_PHP教程

推薦：如何成為PHP高手
PHP是一門高效的網(wǎng)絡(luò)編程語言，由于它具有編寫靈活、運(yùn)行快速等優(yōu)點(diǎn)，迅速成為Web程序員的首選語言。那么怎樣才能成為一個(gè)優(yōu)秀的PHP開發(fā)者呢? 要成為一名PHP編程高手并不容易，并不像很多人想象的那樣，只要能夠飛快地編寫幾條簡(jiǎn)單的代碼去解決一個(gè)復(fù)雜的問題就是PHP編

表單部分：

復(fù)制代碼代碼如下:hl5o.cn

<form action="?action=edit_num" method="post" name="car<?php $c_rs['id'];?>" id="car<?php $c_rs['id'];?>">
<input name="suliang[<?php echo $c_rs['sp_id'];?>]" type="text" id="suliang[<?php echo $c_rs['sp_id'];?>]" value="<?php echo $c_rs['suliang'];?>"/>
<input type="submit" name="button" id="button" value="更新購(gòu)物車" />
</form>

PHP 處理部分：

復(fù)制代碼代碼如下:hl5o.cn

<?php
require 'config.inc.php';
require 'checklogin.php';
$username = $_SESSION['username'];
$action = $_GET['action'];
switch ($action) {
case "edit_num":

$arr = $arr = $_POST['suliang'];
foreach($arr as $key=>$value){
$sqlgx = "update `cartemp` set suliang='$value' where username='".$username."' and flag=0 and sp_id='".$key."'";
mysql_query($sqlgx, $conn);
echo "<script>location.href='shopcat.php'</script>";
}
break;

case "null":
$null_sql = "delete from `cartemp` where username='$username' and flag=0 ";
mysql_query($null_sql, $conn);
echo "<script>location.href='shopcat.php'</script>";
break;
case "del":
$id = $_GET['id'];
$del_sql = "delete from `cartemp` where id=$id";
mysql_query($del_sql, $conn);
echo "<script>location.href='shopcat.php'</script>";
break;
}
?>

分享：PHP多個(gè)接口同個(gè)方法
如果有多個(gè)接口有一個(gè)相同的方法名,且不是繼承出來的,PHP是不允許的如下實(shí)例: php; interface a{ public function x(); } interface b{ public function x(); } class c implements a,b{ public function x(); } 報(bào)如下錯(cuò)誤: Can't inherit abstract function b::x()