phperror-loggingerror-log

How to save the line number when using error_log in PHP?

When using error_log(..) in PHP I would like to specify the line where the error occurred : 

error_log("something bad happened on line $LINE");

How can I do that ?

Solution

  • You should use a Magic constant called __LINE__, so:

    error_log("something bad happened on line ".__LINE__);

    Another useful magic constant in this context may be __FILE__ for the filename:

    error_log(
    sprintf(
        "%s:%d: something bad happened",
        __FILE__,
        __LINE__
    )
);