To get the size of a file in PHP you can use the following snippet.
You can combine this snippet with How to convert bytes to human readable file size in PHP.
Sample PHP
$MyFileSize = filesize('fileName');
filezile
How to get the size of a file in Python
To get the size of a file in Python you can use the following snippet.
You can combine this snippet with How to format bytes to human readable Size in Python.
Sample Python
os.path.getsize(fileName)