php global constants

PHP constants use a few places to note (be cautious about using constants in PHP), constant PHP Why use constants in PHP with caution? The Zend Framework document reads: Constants contain numeric alphabetic characters and underscores, and numbers

Several Notes for using PHP constants (Be careful when using constants in PHP) and constants in php Why be careful when using constants in PHP? The Zend Framework document states that a constant contains numbers, letters, and underscores. A number

This section describes the introduction of include, include_oncerequire, and require_once constants to the file and constants. in the previous article, we discussed the application of functions, but it is only used to call functions in a file. when

PHP constants and variables. PHP constants and variables [constants] can be defined using the define () function. after PHP5.3.0, you can use the const keyword to define constants outside the class definition. Once a constant is set, PHP constants

Almost all programming languages involve the concepts of variables and constants, and PHP is no exception. This section describes how variables and constants in the PHP language are applied.First, what are variables and constantsDuring program

What is the difference between single and double quotes in PHP? 1. As can be seen, the double-quote variable is parsed and output, and the single-quote variable is not resolved. 2. The resolution of single quotation marks is faster than double

PHP Constants and variables "Constant" Constants can be defined with the Define () function, and after PHP 5.3.0, constants can be defined outside the class definition using the Const keyword. Once a constant is defined, it can no longer be changed

What is the difference between single and double quotes in PHP? 1. As can be seen, the double-quote variable is parsed and output, and the single-quote variable is not resolved. 2. The resolution of single quotation marks is faster than double

In the past rarely so detailed to introduce the variables in PHP, constants and the use of magic constants and reference tables, this article for beginners have a need to understand the help of friends can refer to. Variable: Variables are used to

This article mainly introduces the PHP constant, the constant syntax analysis, the interest friend's reference, hoped to be helpful to everybody. One, constant A constant is an identifier (first name) of a simple value. As the name implies, the