文字水印: <div class="codetitle"><a style="CURSOR: pointer" data="6954" class="copybut" id="copybut6954" onclick="doCopy('code6954')"> 代码如下:<div class="codebody" id="code6954"> $w = 80; $h = 20; $im = imagecreatetruecolor($w,$h); $textcolor = imagecolorallocate($im,123,12,255); $white = imagecolorallocate($im,255,255); $grey = imagecolorallocate($im,128,128); $black = imagecolorallocate($im,0); imagefilledrectangle($im,399,29,$grey); //画一矩形并填充 // 把字符串写在图像左上角 imagestring($im,3,2,"Hello world!",$textcolor); // 输出图像 header("Content-type: image/jpeg"); imagejpeg($im); imagedestroy($im); 图片水印 $groundImg = "DSC05940.jpeg"; $groundInfo = getimagesize($groundImg); $ground_w = $groundInfo[0]; //print_r($groundInfo); $ground_h = $groundInfo[1]; switch($groundInfo[2]){ case 1: $ground_im = imagecreatefromgif($groundImg); break; case 2: $ground_im = imagecreatefromjpeg($groundImg); break; case 3: $ground_im = imagecreatefrompng($groundImg); break; } $waterImg = "DSC05949.jpeg"; $imgInfo =getimagesize($waterImg); $water_w = $imgInfo[0]; $water_w = $imgInfo[1]; switch($imgInfo[2]){ case 1: $water_im = imagecreatefromgif($waterImg); break; case 2: $water_im = imagecreatefromjpeg($waterImg); break; case 3: $water_im = imagecreatefrompng($waterImg); break; } imagecopy($ground_im,$water_im,100,500,500); header("Content-type: image/jpeg"); imagejpeg($ground_im); 合并图片php提供了很多函数:例如:imagecopymerge,imagecopyresized (编辑:李大同)
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