php 文字水印_.docx
php 文字水印_ php生成文字水印,并将图片另存，下面是代码，修改了多次，可以防止中文乱码，但是要求字体，依据下面的提示进行配置，这样php文字水印很简单就输出了。 /参数分别是 原始图片 保存图片 位置 文字水印内容 水印数量 文字水印颜色 文字水印字体 /字体在当前文件夹下 function imageWaterMark($groundImage,$savename,$pos=0,$waterText="",$number=1,$textColor="#cccccc",$font = "simhei.ttf") $formatMsg = "仅仅能为GIF、JPG、PNG添加水印图片" if($savename="")$savename = $groundImage; $font = dirname(_FILE_)."".$font; $font = str_replace("","/",$font); if(!empty($font) !file_exists($font) die("font not exists"); if(!empty($groundImage) file_exists($groundImage) $ground_info = getimagesize($groundImage); $ground_w = $ground_info0;/取得背景图片的宽 $ground_h = $ground_info1;/取得背景图片的高 switch($ground_info2)/取得背景图片的格式 case 1:$ground_im = imagecreatefromgif($groundImage);break; case 2:$ground_im = imagecreatefromjpeg($groundImage);break; case 3:$ground_im = imagecreatefrompng($groundImage);break; default:die($formatMsg); else die("需要加文字水印的图片不存在！"); $w = $h = 0 ;/这里是文字水印的的宽度和高度，无法定义 for($number;$number1;$number-) switch($pos) case 0:/随机 $posX = rand(50,($ground_w - $w ); $posY = rand(120,($ground_h - $h ); break; case 1:/文字水印顶端居左 $posX = 0; $posY = 0; break; case 2:/文字水印顶端居中 $posX = ($ground_w - $w) / 2; $posY = 0; break; case 3:/文字水印顶端居右 $posX = $ground_w - $w; $posY = 0; break; case 4:/文字水印中部居左 $posX = 0; $posY = ($ground_h - $h) / 2; break; case 5:/文字水印中部居中 $posX = ($ground_w - $w) / 2; $posY = ($ground_h - $h) / 2; break; case 6:/文字水印中部居右 $posX = $ground_w - $w; $posY = ($ground_h - $h) / 2; break; case 7:/文字水印底端居左 $posX = 0; $posY = $ground_h - $h; break; case 8:/文字水印底端居中 $posX = ($ground_w - $w) / 2; $posY = $ground_h - $h; break; case 9:/文字水印为底端居右 $posX = $ground_w - $w; $posY = $ground_h - $h; break; case 11: $posX = $ground_w - $w; $posY = $ground_h - $h; break; default:/文字水印随机 $posX = rand(0,($ground_w - $w); $posY = rand(0,($ground_h - $h); break; /设定文字水印图片颜色图像的混色模式 imagealphablending($ground_im, true); if( !empty($textColor) (strlen($textColor)=7) ) $R = hexdec(substr($textColor,1,2); $G = hexdec(substr($textColor,3,2); $B = hexdec(substr($textColor,5); else die("水印文字颜色格式不正确！"); imagettftext($ground_im, 20, 0, $posX, $posY, imagecolorallocate($ground_im, $R, $G, $B), $font, $waterText);/将文字写到图片中 img size angle beginx beginy color fonttype content /unlink($groundImage); switch($ground_info2)/取得背景图片的格式 ，并保存文字水印图片 case 1:imagegif($ground_im,$savename);break; case 2:imagejpeg($ground_im,$savename);break; case 3:imagepng($ground_im,$savename);break; default:die($errorMsg); /释放内存 unset($ground_info); imagedestroy($ground_im); 上面就是php 生成文字水印图片函数，假如用法拿去吧。 更多信息请查看IT技术专栏 .
