PHP Script for Adding Field IDs to JavaScript Components

This is a PHP script that takes all JavaScript files in a specified directory and replaces certain components with a 'fieldid' attribute. The components to be replaced and their corresponding 'fieldid' values are defined in the '$components' array. The prefix for the 'fieldid' value can be specified as a command line argument or defaults to 'main'. The script also adds a 'fieldid' attribute to onClick events.

The function 'loopDir' is used to loop through all JavaScript files in the specified directory and calls the 'replace' function for each file. The 'replace' function uses 'preg_replace_callback' to add the 'fieldid' attribute to the specified components and onClick events. Finally, the modified contents are written back to the file. The output logs the name of each file that was processed.