We all know that PHP save errors in php_errors.log file.
But, that file contains a lot of data.
If we want to log our application data, we need to save it to a custom location.
We can use two parameters in the error_log function to achieve this.
http://php.net/manual/en/function.error-log.php
We can do it using:
error_log(print_r($v, TRUE), 3, '/var/tmp/errors.log');
Where,
print_r($v, TRUE) : logs $v (array/string/object) to log file.
3: Put log message to custom log file specified in the third parameter.
'/var/tmp/errors.log': Custom log file (This path is for Linux, we can specify other depending upon OS).
OR, you can use file_put_contents()
file_put_contents('/var/tmp/e.log', print_r($v, true), FILE_APPEND);
Where:
'/var/tmp/errors.log': Custom log file (This path is for Linux, we can specify other depending upon OS).
print_r($v, TRUE) : logs $v (array/string/object) to log file.
FILE_APPEND: Constant parameter specifying whether to append to the file if it exists, if file does not exist, new file will be created.
you can simply use :
error_log("your message");
By default, the message will be send to the php system logger.
You can use normal file operation to create an error log. Just refer this and input this link: PHP File Handling
If you don't want to change anything in your php.ini file, according to PHP documentation, you can do this.
error_log("Error message\n", 3, "/mypath/php.log");
The first parameter is the string to be sent to the log. The second parameter 3 means expect a file destination. The third parameter is the log file path.
Source: Stackoverflow.com