What you need to do is the same as you did for the php file, in your browser address bar type in. syntax. You can link an external PHP file in HTML using include or require statements in PHP tags. Site Map | The target attribute specifies where to open the linked document. you can get the output of the external.php in this iframe. An external style sheet can be written in any text editor, and must be saved with a .css extension. It worked for me on my local development, I copied what you provided. You’re not running the php file from an html page, you’re visiting a php file from an anchor in the html page. how to include external php file in to html page? Thanks. what is mean php ? I am nearly certain that for IIS we must modify the configuration to specify use of PHP. Any other ideas? If you want to run the same JavaScript on several pages in a web site, you should create an external JavaScript file, instead of writing the same script over and over again. is it designingtool or language? you can include by using