PHP uses the GD library to add Watermark sample code to the page

  This article mainly introduces the PHP use of the GD library for the page to add watermark to the specific implementation, the need for friends can refer to the following

  Code as follows: <?php  header ("Content-type:image/png");  $conn = mysql_connect ("localhost", "root", ""); Connection database   $colname _rs_article = $_get[' id ']; Get Parameters id    mysql_select_db ("CMS", $conn); Execute sql  $query _rs_article = sprintf ("SELECT * from articles WHERE article_id =%s", $colname _rs_article);  $rs _ Article = mysql_query ($query _rs_article, $conn) or Die (Mysql_error ());  $row _rs_article = Mysql_fetch_assoc ($rs _ article);  $totalRows _rs_article = mysql_num_rows ($rs _article);    $image = Imagecreatetruecolor (700, 1000); Create canvas   $BG = imagecolorallocate ($image, 255, 255, 255); Set the background to white   Imagefill ($image, 0, 0, $BG);  $text _color = imagecolorallocate ($image, 0, 0, 0); Set text color to black   imagestring ($image, 5, 0, 0, $row _rs_article[' title '), $text _color); Output article title   imagestring ($image, 3, 0, $row _rs_article[' author '), $text _color); Output article author   imagestring ($image, 4, 0, $row _rs_article[' content '), $text _color); Output article content   $logo = imagecreatefrompng (' logo.png '); Get watermark picture   $logoW = Imagesx ($logo);  $logoH = Imagesy ($logo);  imagecopy ($image, $logo, 0, 0, 0, 0, $logoW, $logoH); Combine text picture with watermark picture   imagejpeg ($image); Output to browser  Imagedestroy ($logo);  Imagedestroy ($image); ?>