How to display php errors on the page

How to display php errors on the page: first execute the script "phpinfo.php"; then find the path to the php configuration file; then edit the "php.ini" file and modify the content to "display_errors = On"; Finally, restart "php-fpm".

How to solve the problem that php error messages are not displayed on the browser

[System environment] deepin15.8

[Programming environment] nginx1.13 php7 atom1.22

I am learning PHP these days, and I found that various error messages in PHP are not displayed on the browser, even if there are Even if there is a slight syntax error, the execution result will be as shown below:

# Therefore, I have to find detailed error information in the log file, but if I check it every time an error occurs Logs are so annoying.

The following is the solution.

Execute the following script phpinfo.php:

<?php phpinfo(); ?>

Open it on the browser, then press Ctrl f to search for display_errors, the display is as follows:

Search php.ini again and find the path to the php configuration file, as shown below:

Edit the php.ini file, and then restart the service:

 sudo vi /etc/php/7.2/fpm/php.ini
 
 # 找到display_errors并修改为
 display_errors = On
 
 
 # 重启php-fpm
 sudo systemctl restart php7.2-fpm

Refresh the phpinfo.php script on the browser, find display_errors,

The error message will not be displayed when executing other php scripts containing syntax errors, but will be the same as before.

I didn’t know how to solve it at this point, so I went to search online. It said that I had to configure it in the php-fpm pool and set php_flag[display_errors] to on

sudo vi /etc/php/7.2/fpm/pool.d/www.conf
 
 # 找到php_flag[display_errors]并设置为on

Refresh the page again, the result is displayed as follows,

Execute a php script with syntax errors, display the error message, and you're done!

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