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Where is the PHP log file located on Mac OS?

in PHP on April 30, 2020

Apache’s logs are located under /var/log/apache2

When a location isn’t specified in php.ini, the PHP error log does seem to be found in /var/log/apache2/error_log by default.

You can add all your errors to it by just adding failure else statement just like the following.

// 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);


The error_log() function sends an error message to a log, to a file, or to a mail account.


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

One more example

// Send notification through the server log if we can not
// connect to the database.
if (!Ora_Logon($username, $password)) {
    error_log("Oracle database not available!", 0);

// Notify administrator by email if we run out of FOO
if (!($foo = allocate_new_foo())) {
    error_log("Big trouble, we're all out of FOOs!", 1,
               "[email protected]");

// another way to call error_log():
error_log("You messed up!", 3, "/var/tmp/my-errors.log");

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