PHP - Limiting the Size of File Uploads


PHP allows you to limit the size of uploaded files in a few ways.

First, if you have access to your php.ini file, you can add or edit a directive called upload_max_filesize in the file:

; Maximum allowed size for uploaded files.
upload_max_filesize = 32M

Then, if a user tries to upload a file larger than this value (32 megabytes in this example), the file upload is cancelled and the corresponding error array element is set to UPLOAD_ERR_INI_SIZE.

You can check the size of an uploaded file manually and reject it if it's too large:

if ($_FILES[" photo" ][" size" ]>   10000) die(" File too big!" );

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