检查url链接是否已经有参数的php代码 添加 ? 或 &_PHP

WBOY
Release: 2016-06-01 12:20:10
Original
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比如分页,因为有些链接已经有参数了,在附加分页信息的时候不能把原有的参数丢掉,所以判断一下链接是否有参数,然后根据需要附加分页信息。

方法很简单:
复制代码 代码如下:((strpos($url, '?') !== false) ? '&' : '?');

检查链接中是否含有 ? ,如果有,如:
http://www.test.com/index.php?id=id
则直接在链接后面添加一个 & 然后跟上分页信息:
http://www.bitsCN.com/index.php?id=id&page=12

如果链接中没有参数,如:
http://www.test.com/index.php
则需要添加 & 然后跟上分页信息:
http://www.bitsCN.com/index.php?page=12

附上一个更为健全的检查方法:
复制代码 代码如下:
$old_url = $_SERVER["REQUEST_URI"];
//检查链接中是否存在 ?
$check = strpos($old_url, '?');
//如果存在 ?
if($check !== false)
{
//如果 ? 后面没有参数,如 http://www.yitu.org/index.php?
if(substr($old_url, $check+1) == '')
{
//可以直接加上附加参数
$new_url = $old_url;
}
else //如果有参数,如:http://www.yitu.org/index.php?ID=12
{
$new_url = $old_url.'&';
}
}
else //如果不存在 ?
{
$new_url = $old_url.'?';
}
echo $new_url;
?>

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