php动态添加url查询参数的方法_PHP

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Release: 2023-02-28 10:56:01
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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);
 }
}
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