Summary and performance analysis of php disabling error prompt methods

1. Disable notice error prompt

1. Change error_reporting in the php. Ini file.

Changed:

The code is as follows:	Copy code
Error_reporting = E_ALL &~ E_NOTICE

2. If you cannot operate the php. Ini file, you can use the following method:

Add the following code to the page where you want to disable the notice error prompt:

The code is as follows:	Copy code
Error_reporting (E_ALL ^ E_NOTICE );

In this case, no more prompts will be prompted.

II. Disable all error messages

Php. ini

Open the PHP. Ini file in the php installation directory.

The code is as follows:	Copy code
Find display_errors = On and change it to display_errors = off.

Note: If you have copied the PHP. ini file to the windows directory, you must change display_errors = On in c: windows/php. ini to display_errors = off.

Php program enabled
 

The code is as follows:	Copy code
<? Php // Disable error reporting Error_reporting (0 ); // Report running errors Error_reporting (E_ERROR | E_WARNING | E_PARSE ); // Report all errors Error_reporting (E_ALL ); ?>

Disabling the error message in terms of performance will increase the server performance load a lot.

Test 1:

Disable error display to test the performance of uninitialized and initialized variables in the 10000000 cycle.

The initialization code of the variable is as follows:

The uninitialized loop code of the variable is as follows:

Test score:

Initialization: average 5.28 seconds

Uninitialized: average 17.2 seconds

Performance Gap: 3.25 times

Average time table:

We can see that disabling PHP error output does not close the php kernel's handling of errors. If a large number of Notice-level errors exist in the code, the php program performance will be reduced.