php error 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

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

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

This article will introduce in detail the comments, variables, arrays, constants, and function applications in php. For more information, see What is the difference between single quotes and double quotes in php? 1. the variables in double

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

This article through the PHP source code, starting from the structure of static variables, constants, magic constants analysis. 1. Static variablesAs we all know, static variables are loaded when the PHP script loads, That is 1. The object can be

What are the differences between single quotes and double quotes in php? 1. the variables in double quotation marks are parsed and output, while those in single quotation marks are not parsed. 2. the resolution speed of single quotes is faster than