Miscellaneous Functions Library: Define

Define

(PHP3, PHP4)

Define---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Define a constant name

Syntax: int define (string name, mixed value [, int case_insensitive])

Description:

Define a constant name, similar to a variable, in different places:

The symbol in front of the constant without money ($)
Constants can be accessed anywhere, without regard to variable scope rules
Once the constants are set, they don't need to be defined.
Constants can only be a number of values
The parameter name is the name of the constant, and value is the constant.

If you set the third argument case_insensitive to 1, the constants will be defined as case-insensitive. The presets are case-sensitive, for example: constant and constant represent different values.

Example:

<?php

Define ("CONSTANT", "Hello world.");

Echo CONSTANT; Outputs "Hello world."

?>

Returns true if define () succeeds, and returns False if an error occurs.

Reference: Tabbed ()