php Notice : Use of undefined constant solution_PHP tutorial

When I was doing php, I suddenly got the error php Notice: Use of undefined constant. One is that the variable is not defined. Let’s take a look at the solution.

Error message

php Notice : Use of undefined constant

Analysis

These are PHP prompts rather than errors. PHP itself can be used directly without declaring variables in advance, but there will be prompts for undeclared variables. Generally, as an official website, prompts will be turned off, and even error messages will be turned off

Solution

How to turn off PHP prompts

Search php.ini:

　

You need to change your php.ini file

The code is as follows

代码如下	复制代码
error_reporting = E_ALL 　　改为： 　　error_reporting = E_ALL & ~E_NOTICE

Copy code

error_reporting = E_ALL

Changed to:

代码如下	复制代码
error_reporting(0); 虽然不好弄但是可以解决问题

　error_reporting = E_ALL & ~E_NOTICE

Another alternative is

Add

to the header of each file

代码如下	复制代码
error_reporting = E_ALL & ~E_NOTICE & ~E_STRICT

Foreign reference articles

Hello,

find the word "error_reporting" in your php.ini file and make the

change like below..

The code is as follows	Copy code
error_reporting = E_ALL & ~E_NOTICE & ~E_STRICT regards R.Sureshkannan http://www.bkjia.com/PHPjc/632226.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/632226.htmlTechArticleWhen I was doing php, an error like php Notice: Use of undefined constant suddenly appeared. One is that the variable is not defined. problem, let’s take a look at the solution. Error message php No...