In this article, you will learn how to send log in PHP. The log can be send to mail, file or log. The error_log() function sends an error message to a log, to a file, or to a mail account.
what is the syntax of the ERROR_LOG() function in php?
error_log(message, type, destination, headers);| Parameter | Description |
|---|---|
| message | Required. Specifies the error message to log |
| type | Optional. Specifies where the error message should go. Possible values:0 – Default. Message is sent to PHP’s system logger, using the OS’ system logging mechanism or a file, depending on what the error_log configuration is set to in php.ini1 – Message is sent by email to the address in the destination parameter2 – No longer in use (only available in PHP 3)3 – Message is appended to the file specified in destination4 – Message is sent directly to the SAPI logging handler |
| destination | Optional. Specifies the destination of the error message. This value depends on the value of the type parameter |
| headers | Optional. Only used if the type parameter is set to 1. Specifies additional headers, like From, Cc, and Bcc. Multiple headers should be separated with a CRLF (\r\n) |
examples of the ERROR_LOG() function
Example 1. In this example, we send error messages to the web server’s error log and to a mail account.
<?php
// Send error message to the server log if error connecting to the database
if (!mysqli_connect("localhost","bad_user","bad_password","my_db")) {
error_log("Failed to connect to database!", 0);
}
// Send email to administrator if we run out of FOO
if (!($foo = allocate_new_foo())) {
error_log("Oh no! We are out of FOOs!", 1, "admin@example.com");
}
?>
