<?php $im = 'xiatian.jpg'; $im2 = 'winter3.jpg'; $img = getImage($im); $bimg = getImage($im2); //$image = getimagesize($im); //print_r($image); //Array ( [0] => 150 width /*[1] => 150 height [2] => 3 图片类型 [3] => [bits] => 8 [mime] => image/png )*/ //图片复制组合------$bimg---- imagecopy($bimg, $img, 300, 4, 0, 0, getWidth($im),getHeight($im)); //加水印文字 $color = imagecolorallocate($bimg,255, 255, 0); $str = "中国"; $str = mb_convert_encoding($str, "html-entities","utf-8"); imagettftext($bimg, 42, 0, rand(20,getWidth($im2)-100), rand(40,getHeight($im2)), $color, 'MSYH.TTF', $str); //剪切，重新生成缩略图 $new = imagecreatetruecolor(50, 50); imagecopyresized($new, $bimg, 0, 0, 0, 0, 50, 50, getWidth($im2), getHeight($im2)); //输出到浏览器 header("Content-Type: image/jpeg"); //如果为png图片也可正常显示，浏览器负责正确解析 imagejpeg($new); //生成大图，小图 imagejpeg($new,'small.jpg'); imagejpeg($bimg,'big.jpg'); function getImage($img_file) { $image = getimagesize($img_file); //判断是那种图片类型 switch($image[2]) { case 1: $img = @imagecreatefromgif($img_file); break; case 2: $img = @imagecreatefromjpeg($img_file); break; case 3: $img = @imagecreatefrompng($img_file); break; } return $img; } function getWidth($img_file) { $image = getimagesize($img_file); return $image[0]; } function getHeight($img_file) { $image = getimagesize($img_file); return $image[1]; } ?>