How can PHP beginners effectively navigate and search through log files to identify the source of error messages like "define called from eval"?

To identify the source of error messages like "define called from eval" in log files, beginners can search for the specific error message in the log files using text editors or command-line tools. By locating the line of code where the error occurs, beginners can trace back to the source of the issue, which is likely caused by using the "define" function within an "eval" statement.

// Example code snippet to demonstrate the issue
eval('define("ERROR_CONSTANT", "Error message");');