How to enable php error prompts

How to turn on php error prompts: 1. Change the values ​​​​of [display_errors] and [error_reporting] in the [php.ini] file, and add them directly if they are not available; 2. Add them in Apache's httpd.conf file Related sentences above.

How to turn on php error prompt:

The first method: In php Change the values ​​of display_errors and error_reporting in the .ini file. If not, add

; 第一处修改
 
; display_errors = Off
 
display_errors = On
 
  
 
; 第二处修改
 
; error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT
 
error_reporting = E_ALL | E_STRICT
display_errors

error echo directly. This is commonly used in development mode, but many applications forget to turn off this option in the formal environment. Error echo can expose a lot of sensitive information, which facilitates the attacker's next attack. It is recommended to turn this option off.

display_errors = On

When it is enabled, if an error occurs, an error will be reported and an error message will appear

dispaly_errors = Off

In the closed state, if an error occurs, it will prompt: Server error. But no error message will appear

The parameters that error_reporting can set are as follows:

Error reporting is a bit field. You can add up the numbers to get the desired level of error reporting.

• E_ALL – All errors and warnings (excluding E_STRICT)

• E_ERROR – Fatal runtime errors

• E_WARNING – Run-time warning (non-fatal error)

• E_PARSE – Compile-time parsing error

• E_NOTICE – Run (These are often caused by bugs in your code, but can also be caused by intentional actions.)

• E_STRICT – Coding standardization warnings, allowing PHP to suggest how to modify the code to ensure Optimal interoperability and forward compatibility.

• E_CORE_ERROR - Fatal error during PHP startup initialization

• E_CORE_WARNING - Warning (non-fatal error during PHP startup initialization) )

• E_COMPILE_ERROR - Compile-time fatal error

• E_COMPILE_WARNING - Compile-time warning (non-fatal error)

• E_USER_ERROR – User-defined error message

• E_USER_WARNING – User-defined warning message

• E_USER_NOTICE – User-defined Reminder message

Second method:Add the following two sentences in Apache’s httpd.conf file

php_flag display_errors on
 
php_value error_reporting 2039

Related free Learning recommendation: php programming (video)

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