Educator

Script Input & The GET Method

• There are three basic ways a user can provide input to a PHP script: the HTTP GET method, the HTTP POST method, and Cookies.
• These methods provide input to a script via pairs of strings, known as name/value pairs .
• The HTTP GET method provides input to a script by appending name/value pairs to a destination script’s URL.
• HTML forms are composed of a set of input controls that each represent a name/value pair to be sent to a script upon the form's submission.
• The HTML <form> tag is used to declare an HTML form. It has two key attributes: action and method .
• Query strings are name/value pairs appended to a URL after a question mark. Each name and value are separated by an equals sign, and each name/value pair are separated by an ampersand sign.
• URLs have specific syntax rules so query strings added to URLs must be encoded to follow those rules. This is known as URL Encoding .
• urlencode() is a built-in PHP function used to properly encode URL query strings.
• Additional Resources:
  • Function Reference - urlencode()