I have understood that if I want to use for example the function gd_info() in PHP I have to enable some extensions. I am using Debian, but I havent found any how to or source anywhere that shows how to do it. Some one have any tips in here?
If you are a web developer, you would be aware of the <iframe> tag in HTML. The <iframe> stands for inline frame and is used to embed another document within the current HTML document. The embedded document could be even another website.
There are times when I have encountered the need to decompress a response from a PHP request.
This is how it's done, but you must have control of the request and you can set the Accept-Encoding header.
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions.
Consider email address RFCs:
Look at HTML5 form input element (with type=email) regex pattern: