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how can I see if the file loaded weighs less than 5MB? I am using
$ _FILES ["file"] ["size"] but I do not know how to set 5mb, because the value must be expressed in bytes, from what I understand. So how to do
$ _FILES ["file"] ["size"] <(5mb) thanks
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$_FILES is a super global variable which can be used to upload files. Here we will see an example in which our php script checks if the form to upload the file is being submitted and generates a message if true. Code of files.
Locate the file or folder whose size you would like to view. Click the file or folder. Press Command + I on your keyboard. A window opens and shows the size of the file or folder.
$_FILES['file']['tmp_name'] - The temporary filename of the file in which the uploaded file was stored on the server.
To increaes file upload size in PHP, you need to modify the upload_max_filesize and post_max_size variable's in your php. ini file. In addition, you can also set the maximum number of files allowed to be uploaded simultaneously, in a single request, using the max_file_uploads .
To keep code clear, I often define units as constants:
define('KB', 1024); define('MB', 1048576); define('GB', 1073741824); define('TB', 1099511627776); Then you can simply do your condition like
if ($_FILES['file']['size'] < 5*MB) 5MB -> 5 * 1024 * 1024 bytes
or... if you're a storage vendor, then it's actually 5 * 1000 * 1000.
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