What steps should PHP developers take to ensure that temporary files are properly handled and deleted after the upload process is complete?

To ensure that temporary files are properly handled and deleted after the upload process is complete, PHP developers should use the "tmp_name" property of the uploaded file to move it to a permanent location and then delete the temporary file. This helps prevent clutter and potential security risks from leftover temporary files. 

// Handle file upload
if(isset($_FILES['file'])) {
    $tempFile = $_FILES['file']['tmp_name'];
    $targetFile = 'uploads/' . $_FILES['file']['name'];

    // Move uploaded file to permanent location
    if(move_uploaded_file($tempFile, $targetFile)) {
        // Delete temporary file
        unlink($tempFile);
        echo 'File uploaded successfully!';
    } else {
        echo 'Error uploading file.';
    }
}

Keywords

file handling temporary files upload process deletion PHP developers

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