What are common issues with file uploads in PHP, especially when using XAMPP on Windows 7?

Common issues with file uploads in PHP, especially when using XAMPP on Windows 7, include exceeding the maximum file size limit set in php.ini, incorrect file permissions, and not having the proper enctype attribute in the HTML form. To solve these issues, make sure to adjust the upload_max_filesize and post_max_size values in php.ini, set the correct permissions on the upload directory, and add enctype="multipart/form-data" to the form tag.

<form action="upload.php" method="post" enctype="multipart/form-data">
    <input type="file" name="file">
    <input type="submit" value="Upload File">
</form>