php register globals setting on instead of off

PHP Tutorial Configuration Chinese Narration Let's see what you see, php.ini. [PHP] ;;;;;;;;;;;; WARNING;;;;;;;;;;;;; This is the default settings file for new PHP installations.; By default, PHP installs itself with a configuration suitable for;

There is such a section in the Discuz code:If (isset ($ _ REQUEST ['globals']) OR isset ($ _ FILES ['globals']) {Exit ('request tainting attempted .');}Register_globals is a control option in php. It can be set to off or on. The default value is off.

Intended audience Introduction Register_globals How does the variables get to PHP? From the URL From a Form From a Cookie From the environment or the Server Use the superglobals! Why are they called superglobals? Other coding techniques Ways

#一, PHP variable definition: Variables are used to store values, such as numbers, text strings or arrays, V: string/integer/double/array/object Naming rules: 1. The variable name of PHP is case-sensitive. 2. The variable name must begin with $3,

This article does not describe the purpose of an INI configuration item in detail, as explained in the manual. I just want to dig into PHP's implementation mechanism from a specific point of view, which involves some knowledge of the PHP kernel:-)

1. What is the definition of a variable? How do I check that a variable is defined? How do I delete a variable? How do I detect if a variable is set? $ defines whether the isset ()//check variable is setDefined ()//Detect constants are setUnset

BasisA dollar sign in PHP followed by a variable name, which represents a variable. The name of the variable is case-sensitive.The variable name follows the same rules as other tags in PHP. A valid variable name begins with a letter or underscore,

PHP built-in function example tutorial, built-in function instance tutorial Uppercase and lowercase conversion related functionsStrtolower ()Strtoupper ()Ucfirst ()Ucword () Text HTML tag handler function NL2BR ()Htmllentities ()Htmlspecialchars

Uppercase and lowercase conversion related functions Strtolower () Strtoupper () Ucfirst () Ucword () Text HTML tag handler function NL2BR ()Htmllentities ()Htmlspecialchars ()Stripslashes ()Strip_tags ()Number_format ()Strrev ()MD5 ()