PHP dynamic Add URL query parameters method, PHP dynamic URL parameter _php tutorial

PHP dynamic Add URL query parameters method, PHP dynamic URL parameters

In this paper, we describe the method of dynamically adding URL query parameters in PHP. Share to everyone for your reference. The specific analysis is as follows:

This code can dynamically add key-value query parameters to the URL and overwrite it with the new if the parameter already exists

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); }}

I hope this article is helpful to everyone's PHP programming.

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