php给图片平添水印

php给图片添加水印

<?php echo "<?xml version=\"1.0\" encoding=\"UTF-8\"";?>









">

	

		
FileUpload : 
		

		

	




<?php
if (! isset ( $_POST ["submit"] )) {
	return;
} else {
	if (isset ( $_FILES ["file"] ) || $_POST ["file"] != "") {
		$file = $_FILES ["file"] ["tmp_name"];
		$img_info = getimagesize ( $file );
		switch ($img_info [2]) {
			case 1 :
				$im = imagecreatefromgif ( $file );
				break;
			case 2 :
				$im = imagecreatefromjpeg ( $file );
				break;
			case 3 :
				$im = imagecreatefrompng ( $file );
				break;
		}
		$back = imagecolorallocate ( $im, 255, 255, 200 );
		$color = imagecolorallocate ( $im, 0, 0, 255 );
		$str = "you select it";
		imagefilledrectangle ( $im, 0, 0, 90, 20, $back );
		imagestring ( $im, 5, 0, 0, $str, $color );
		$filepath = "upload/";
		$name = $filepath . $_FILES ["file"] ["name"];
		switch ($img_info [2]) {
			case 1 :
				imagegif ( $im, $name );
				break;
			case 2 :
				imagejpeg ( $im, $name );
				break;
			case 3 :
				imagepng ( $im, $name );
				break;
		}
		echo "";
	}
}
?>