How to dynamically add url query parameters in php

This article mainly introduces how to dynamically add url query parameters in php. It involves the skills of using regular expression replacement to operate URLs in php. It has some reference value. If you need it, you can refer

This article mainly introduces how to dynamically add url query parameters in php. It involves the skills of using regular expression replacement to operate URLs in php. It has some reference value. If you need it, you can refer

This example describes how to dynamically add url query parameters in php. Share it with you for your reference. The specific analysis is as follows:

This code dynamically adds the key-value query parameter for the url. If the parameter already exists, it will be overwritten with a new one.

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 will help you with php programming.