PHP asynchronous debugging and online debugging of Web programs _php tutorial

PHP asynchronous debugging and online debugging methods for Web programs

What do you do when you encounter a site that needs to run uninterrupted, but you need to debug the site's program errors? Is it a bit of experience to guess, or just print the error message to get it out on the page?

Below to share a method to meet both of these conditions, both to facilitate the site program error debugging, and do not affect the normal operation of the site debugging methods. Copy the following PHP statement to the top of the common code.

Ini_set (' error_reporting ', E_all ^ e_notice);//Displays all error messages except NOTICE type Ini_set (' error_reporting ', e_all);// Displays all error messages Ini_set (' display_errors ', off);//Disables the output of error messages to the output ini_set (' Log_errors ', on);//Turn On Error logging Ini_set (' error_log ', ' C :/phpernote ');//define error log storage location

Additionally, two more commonly used PHP statements to troubleshoot error messages are added:

@ini_set (' Memory_limit ', ' 500M ');//Setup can occupy maximum memory of 500mb@ini_set (' max_execution_time ', ' 180 ');//Set allow maximum execution time of 180 seconds

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