How to effectively block PHP warnings and error prompts

Many friends often encounter the following errors when writing PHP:

Many friends often encounter the following errors when writing PHP:
Warning: file_get_contents (/usr/local/tads/htdocs/XXXXXX/src/cache/countLoginnum.txt) [function. file-get-contents]: failed to open stream: No such file or directory in/usr/local/tads/htdocs/XXXXXXX/src/controllers/defaultController. php on line 43

Warning: Cannot modify header information-headers already sent by (output started at/usr/local/tads/htdocs/XXXXXX/src/config/env. php: 5) in/usr/local/taesdk/1.0/phplib3/src/base/core/TMWebResponse. class. php on line 332

Solution: add the following code to the PHP file header to shield the warning error:
 

PHP code

2. // Put session_star () after session_star ()
3. Error_reporting (E_ERROR );
4. Ini_set ("display_errors", "Off ");
6. // Your php code
8. ?>