SESSIONS:- In php we use sessions to make boundaries for users like they not access our webpage without login etc.
And we also able to get all details of users through session variables.
POST & GET:-
POST method used to post data without showing it on run time/execution time to user but in a secure way but.
through get method user can read data during sending of data even he/she change it on execution time.
in php side $variable=$_POST['name'];
in php side $variable=$_GET['name'];
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please increse your MAX_FILE_UPLOAD limit on your server(cpanel etc.) in .ini file or if your using XAMPP or WAMP server for localhost then you can change it from apache foler search for config.ini and change it as maximum you want to upload.
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