How Can I Rename Uploaded Files Before Saving Them Using `move_uploaded_file()`?

Renaming an Uploaded File Before Saving

While uploading files into a directory using the move_uploaded_file() function, users often encounter the problem of assigning custom names to the uploaded files. To address this issue, here's a solution:

In the provided code, the name of the uploaded file is set when move_uploaded_file() is called. To rename the file to a random number, simply change the second parameter of move_uploaded_file() to the desired filename.

Instead of:

move_uploaded_file($_FILES["file"]["tmp_name"], "../img/imageDirectory/" . $_FILES["file"]["name"]);

Use:

$randNumber = rand(0, 3000); // Generate a random number
move_uploaded_file($_FILES["file"]["tmp_name"], "../img/imageDirectory/" . $randNumber . ".extension");

This will assign a random number as the file name while preserving the file's original extension. Additionally, you can use other techniques to generate a unique name based on time, user input, or other criteria.

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