php动态添加url查询参数的方法，php动态url参数
本文实例讲述了php动态添加url查询参数的方法。分享给大家供大家参考。具体分析如下：
这段代码可以动态为url添加key-value查询参数，如果参数已经存在则会用新的进行覆盖
function add_querystring_var($url, $key, $value) {
$url=preg_replace('/(.*)(?|&)'.$key.'=[^&]+?(&)(.*)/i','$1$2$4',$url.'&');
$url=substr($url,0,-1);
if(strpos($url,'?') === false){
return ($url.'?'.$key.'='.$value);
} else {
return ($url.'&'.$key.'='.$value);
}
}
希望本文所述对大家的php程序设计有所帮助。
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