2 Binary Equal php files, one works while the other emits White Screen of Death -

i edited <title> in php file (myfile.php) re-uploaded server; changed.

now navigating page/file doesn't work. php's white screen of death (view-source blank too).

i renamed file locally , reuploaded myfile2.php.

tada. works.

i've restarted server , original file still won't work.

turns out while myfile.php file binary equal myfile2.php got messed on server. deleting original myfile.php , reuploading fixed it.