If you're on a Mac you can open Terminal which is located in: Applications/Utilities

You can navigate to your project folder by using the change directory or cd command followed by the directory. For me it is: cd /Users/josephtylerjones/Developer/scripts/

Now you can check the syntax of your script by running php -l followed by the file name. For me it is: php -l testfile.php This command will detect any syntax errors in your script!