How do I log errors and warnings into a file?
PhpError HandlingPhp Problem Overview
How do I turn on all error and warnings and log them to a file, but to set up all of that within the script (not changing anything in php.ini)?
I want to define a file name and so that all errors and warnings get logged into it.
Php Solutions
Solution 1 - Php
Use the following code:
ini_set("log_errors", 1);
ini_set("error_log", "/tmp/php-error.log");
error_log( "Hello, errors!" );
Then watch the file:
tail -f /tmp/php-error.log
Or update php.ini as described in this blog entry from 2008.
Solution 2 - Php
See
error_log— Send an error message somewhere
Example
error_log("You messed up!", 3, "/var/tmp/my-errors.log");
You can customize error handling with your own error handlers to call this function for you whenever an error or warning or whatever you need to log occurs. For additional information, please refer to the Chapter Error Handling in the PHP Manual
Solution 3 - Php
Simply put these codes at top of your PHP/index file:
error_reporting(E_ALL); // Error/Exception engine, always use E_ALL
ini_set('ignore_repeated_errors', TRUE); // always use TRUE
ini_set('display_errors', FALSE); // Error/Exception display, use FALSE only in production environment or real server. Use TRUE in development environment
ini_set('log_errors', TRUE); // Error/Exception file logging engine.
ini_set('error_log', 'your/path/to/errors.log'); // Logging file path
Solution 4 - Php
Add this code in file .htaccess (as an alternative to file php.ini or the ini_set function):
<IfModule mod_php5.c>
php_flag log_errors on
php_value error_log ./path_to_MY_PHP_ERRORS.log
# php_flag display_errors on
</IfModule>
-
as commented: this is for Apache-type servers, and not for Nginx or others.
Solution 5 - Php
That's my personal short function
# logging
/*
[2017-03-20 3:35:43] [INFO] [file.php] Here we are
[2017-03-20 3:35:43] [ERROR] [file.php] Not good
[2017-03-20 3:35:43] [DEBUG] [file.php] Regex empty
mylog ('hallo') -> INFO
mylog ('fail', 'e') -> ERROR
mylog ('next', 'd') -> DEBUG
mylog ('next', 'd', 'debug.log') -> DEBUG file debug.log
*/
function mylog($text, $level='i', $file='logs') {
switch (strtolower($level)) {
case 'e':
case 'error':
$level='ERROR';
break;
case 'i':
case 'info':
$level='INFO';
break;
case 'd':
case 'debug':
$level='DEBUG';
break;
default:
$level='INFO';
}
error_log(date("[Y-m-d H:i:s]")."\t[".$level."]\t[".basename(__FILE__)."]\t".$text."\n", 3, $file);
}
Solution 6 - Php
Take a look at the log_errors configuration option in php.ini. It seems to do just what you want to. I think you can use the error_log option to set your own logging file too.
When the log_errors directive is set to On, any errors reported by PHP would be logged to the server log or the file specified with error_log. You can set these options with ini_set too, if you need to.
(Please note that display_errors should be disabled in php.ini if this option is enabled)
Solution 7 - Php
In addition, you need the "AllowOverride Options" directive for this to work. (Apache 2.2.15)