php $从url获取多个变量
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$get multiple variables from url
提问by slexAtrukov
I am making a photography website. In the DB there is an images table, events table and category table which as linked via foreign keys. At the moment i generate events from when a photo was taken from the database and turn them into anchor links.
我正在制作一个摄影网站。在数据库中有一个图像表、事件表和类别表，它们通过外键链接。目前我从数据库中拍摄照片时生成事件并将它们转换为锚链接。
<?php
while ( $a_row = mysql_fetch_row( $result ) ){
foreach ( $a_row as $field ){
?>
<a href="images.php?event=<?php echo $field;?> "> <php? echo $field; ?> </a>
<?php
}
}
?>
When the link is clicked a script gets the variable from get in the url: /images.php?**event**=eventCalledParty
单击链接时，脚本会从 url 中的 get 获取变量： /images.php?**event**=eventCalledParty
foreach($_GET as $value)
{
$event = $value;
}
$event = mysql_real_escape_string($event);
My question is - If i was to implement categories and have a url that looks like:
我的问题是 - 如果我要实现类别并有一个如下所示的网址：
/images.php?event=eventCalledParty&category=categoryCalledFashionPhotography
/images.php？event=eventCalledParty& category=categoryCalledFashionPhotography
How would i seperate these two variables from the url to use in my queries.
我将如何将这两个变量与 url 分开以在我的查询中使用。
Thank You.
谢谢你。
回答by Brad
These will automatically show up in these variables...
这些将自动显示在这些变量中...
$_GET['event']
$_GET['category']
PHP does all of this work for you.
PHP 为您完成所有这些工作。
回答by Your Common Sense
$event = mysql_real_escape_string($_GET['event']);
$category = mysql_real_escape_string($_GET['category']);
回答by Dale Hurley
foreach($_GET as $key => $value) { $event[$key] = mysql_real_escape_string($value); }
foreach($_GET as $key => $value) { $event[$key] = mysql_real_escape_string($value); }
回答by Fanis Hatzidakis
Each url parameter becomes a separate key in $_GET.
每个 url 参数成为$_GET.
So, for /images.php?event=eventCalledParty&category=categoryCalledFashionPhotography you will get:
因此，对于 /images.php?event=eventCalledParty&category=categoryCalledFashionPhotography，您将获得：
$_GET['event'] => 'eventCalledParty'
$_GET['category'] => 'categoryCalledFashionPhotography'
and you can act accordingly:
你可以采取相应的行动：
if ($_GET['category'] == 'categoryCalledFashionPhotography') {
//do stuff here
}
回答by davydotcom
Im a bit rusty on php but I think in your foreach what you want is to get the name of teh field as well as its value.
我对 php 有点生疏，但我认为在你的 foreach 中你想要的是获取 teh 字段的名称及其值。
foreach($_GET as $name->$value)
{
if($name == 'event') {
$event = mysql_real_escape_string($value);
}
else if($name == 'category')
{
$category = mysql_real_escape_string($category);
}
}
