What are the implications of using chmod 777 versus chmod 755 for file permissions in this scenario?

Using chmod 777 for file permissions gives full read, write, and execute permissions to all users, which can pose a security risk as it allows anyone to modify the file. On the other hand, using chmod 755 gives read, write, and execute permissions to the owner of the file, and only read and execute permissions to group members and others, which is a more secure option. In this scenario, it is recommended to use chmod 755 for file permissions to restrict access to the file.

// Set file permissions to 755
chmod("/path/to/file", 0755);