Log Message to File

error_log

(PHP 4, PHP 5, PHP 7)

error_log — Send an error message to the defined error handling routines

Description ¶

bool error_log ( string $message [, int $message_type = 0 [, string $destination [, string$extra_headers ]]] )

Sends an error message to the web server's error log or to a file.

Parameters ¶

message

The error message that should be logged.

message_type

Says where the error should go. The possible message types are as follows:

error_log() log types

0	message is sent to PHP's system logger, using the Operating System's system logging mechanism or a file, depending on what the error_log configuration directive is set to. This is the default option.
1	message is sent by email to the address in the destination parameter. This is the only message type where the fourth parameter, extra_headers is used.
2	No longer an option.
3	message is appended to the file destination. A newline is not automatically added to the end of the message string.
4	message is sent directly to the SAPI logging handler.

destination

The destination. Its meaning depends on the message_type parameter as described above.

extra_headers

The extra headers. It's used when the message_type parameter is set to 1. This message type uses the same internal function as mail() does.

Return Values ¶

Returns TRUE on success or FALSE on failure.