首页 > 帮助 > 帝国cms > [7.X版] 帝国cms常见问题：缩略图函数改进（GD库改进）

[7.X版] 帝国cms常见问题：缩略图函数改进（GD库改进）

如下示例代码：

<p>&lt;?php<br />define(&#39;InEmpireCMSGd&#39;,TRUE);</p><p>//原文件,新文件,宽度,高度,维持比例<br />function ResizeImage($big_image_name, $new_name, $max_width = 400, $max_height = 400, $resize = 1){<br />&nbsp; &nbsp; &nbsp; &nbsp; $returnr[&#39;file&#39;]=&#39;&#39;;<br />&nbsp; &nbsp; &nbsp; &nbsp; $returnr[&#39;filetype&#39;]=&#39;&#39;;<br />&nbsp; &nbsp; &nbsp; &nbsp; if($temp_img_type = @getimagesize($big_image_name)) {preg_match(&#39;//([a-z]+)$/i&#39;, $temp_img_type[mime], $tpn); $img_type = $tpn[1];<br />&nbsp; &nbsp; &nbsp; &nbsp; }else{<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; preg_match(&#39;/.([a-z]+)$/i&#39;, $big_image_name, $tpn); $img_type = $tpn[1];<br />&nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; $all_type = array(<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &quot;jpg&quot; =&gt; array(&quot;create&quot;=&gt;&quot;ImageCreateFromjpeg&quot;, &quot;output&quot;=&gt;&quot;imagejpeg&quot; , &quot;exn&quot;=&gt;&quot;.jpg&quot;),<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &quot;gif&quot; =&gt; array(&quot;create&quot;=&gt;&quot;ImageCreateFromGIF&quot; , &quot;output&quot;=&gt;&quot;imagegif&quot; , &quot;exn&quot;=&gt;&quot;.gif&quot;),<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &quot;jpeg&quot; =&gt; array(&quot;create&quot;=&gt;&quot;ImageCreateFromjpeg&quot;, &quot;output&quot;=&gt;&quot;imagejpeg&quot; , &quot;exn&quot;=&gt;&quot;.jpg&quot;),<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &quot;png&quot; =&gt; array(&quot;create&quot;=&gt;&quot;imagecreatefrompng&quot; , &quot;output&quot;=&gt;&quot;imagepng&quot; , &quot;exn&quot;=&gt;&quot;.png&quot;),<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &quot;wbmp&quot; =&gt; array(&quot;create&quot;=&gt;&quot;imagecreatefromwbmp&quot;, &quot;output&quot;=&gt;&quot;image2wbmp&quot; , &quot;exn&quot;=&gt;&quot;.wbmp&quot;)<br />&nbsp; &nbsp; &nbsp; &nbsp; );</p><p>&nbsp; &nbsp; &nbsp; &nbsp; $func_create = $all_type[$img_type][&#39;create&#39;];<br />&nbsp; &nbsp; &nbsp; &nbsp; if(empty($func_create) or !function_exists($func_create)) {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return $returnr;<br />&nbsp; &nbsp; &nbsp; &nbsp; }<br />//输出<br />&nbsp; &nbsp; &nbsp; &nbsp; $func_output = $all_type[$img_type][&#39;output&#39;];<br />&nbsp; &nbsp; &nbsp; &nbsp; $func_exname = $all_type[$img_type][&#39;exn&#39;];<br />&nbsp; &nbsp; &nbsp; &nbsp; if(($func_exname==&#39;.gif&#39;||$func_exname==&#39;.png&#39;||</p><p>$func_exname==&#39;.wbmp&#39;)&amp;&amp;!function_exists($func_output)) {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $func_output=&#39;imagejpeg&#39;;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $func_exname=&#39;.jpg&#39;;<br />&nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; $big_image = $func_create($big_image_name);<br />&nbsp; &nbsp; &nbsp; &nbsp; $big_width = imagesx($big_image);<br />&nbsp; &nbsp; &nbsp; &nbsp; $big_height = imagesy($big_image);<br />&nbsp; &nbsp; &nbsp; &nbsp; if($big_width &lt;= $max_width and $big_height &lt;= $max_height) {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $func_output($big_image, $new_name.$func_exname);<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $returnr[&#39;file&#39;]=$new_name.$func_exname;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $returnr[&#39;filetype&#39;]=$func_exname;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return $returnr;<br />&nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; $ratiow = $max_width / $big_width;<br />&nbsp; &nbsp; &nbsp; &nbsp; $ratioh = $max_height / $big_height;<br />&nbsp; &nbsp; &nbsp; &nbsp; $new_width = ($ratiow &gt; 1) ? $big_width : $max_width;<br />&nbsp; &nbsp; &nbsp; &nbsp; $new_height = ($ratioh &gt; 1) ? $big_height : $max_height;<br />&nbsp; &nbsp; &nbsp; &nbsp; if($resize == 1) {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if($big_width &gt;= $max_width and $big_height &gt;= $max_height) {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if($big_width &gt; $big_height) {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempx = $max_width / $ratioh;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempy = $big_height;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcX = ($big_width - $tempx) / 2;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcY = 0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; } else {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempy = $max_height / $ratiow;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempx = $big_width;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcY = ($big_height - $tempy) / 2;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcX = 0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; } else {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if($big_width &gt; $big_height){<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempx = $max_width;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempy = $big_height;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcX = ($big_width - $tempx) / 2;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcY = 0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; } else {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempy = $max_height;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempx = $big_width;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcY = ($big_height - $tempy) / 2;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcX = 0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; }elseif($resize == 2){//同比例缩放超出裁切</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if($big_width &gt;= $max_width and $big_height &gt;= $max_height){<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if($max_width &gt;= ($big_width * $ratioh)){<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempx=$big_width;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempy=$max_height / $ratiow;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcX=0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcY=($big_height - $tempy) / 2;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }elseif($max_height &gt;= ( $big_height * $ratiow)){<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempx=$max_width / $ratioh;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempy=$big_height;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcX=($big_width - $tempx) / 2;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcY=0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }else{<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempx=$max_width;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempy=$big_height;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcX=($big_width - $tempx) / 2;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcY=0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }else{<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if($max_height &gt;= $big_height){<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempx=$max_width;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempy=$big_height;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcX=($big_width - $max_width) / 2;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcY=0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }elseif($max_width &gt;= $big_width){<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempx=$big_width;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempy=$max_height;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcX=0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcY=($big_height - $max_height) / 2;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; }elseif($resize == 3){//宽度固定 高度同比例任意<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcX = 0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcY = 0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempx = $big_width;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempy = $big_height;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if($big_width &gt;= $max_width){<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $new_height=$big_height*$ratiow;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }else{<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $new_height=$big_height;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; }else { //不保持比例<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcX = 0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $srcY = 0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempx = $big_width;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tempy = $big_height;<br />&nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; if(function_exists(&quot;imagecopyresampled&quot;)){<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $temp_image = imagecreatetruecolor($new_width, $new_height);<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; //echo $tempx;exit;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; imagecopyresampled($temp_image, $big_image, 0, 0, $srcX, $srcY, $new_width, $new_height, $tempx, $tempy);<br />&nbsp; &nbsp; &nbsp; &nbsp; } else {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $temp_image = imagecreate($new_width, $new_height);<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; imagecopyresized($temp_image, $big_image, 0, 0, $srcX, $srcY, $new_width, $new_height, $tempx, $tempy);<br />&nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; /*增加高质量输出图像*/<br />&nbsp; &nbsp; &nbsp; &nbsp; $zhiliang=$func_exname==&#39;.png&#39;?9:100;<br />&nbsp; &nbsp; &nbsp; &nbsp; $func_output($temp_image, $new_name.$func_exname,$zhiliang);<br />//$func_output($temp_image, $new_name.$func_exname);<br />&nbsp; &nbsp; &nbsp; &nbsp; ImageDestroy($big_image);<br />&nbsp; &nbsp; &nbsp; &nbsp; ImageDestroy($temp_image);<br />&nbsp; &nbsp; &nbsp; &nbsp; $returnr[&#39;file&#39;]=$new_name.$func_exname;<br />&nbsp; &nbsp; &nbsp; &nbsp; $returnr[&#39;filetype&#39;]=$func_exname;<br />&nbsp; &nbsp; &nbsp; &nbsp; return $returnr;<br />}</p><p>/*<br />* 功能：图片加水印 (水印支持图片或文字)<br />* 参数：<br />* $groundImage背景图片，即需要加水印的图片，暂只支持GIF,JPG,PNG格式；<br />* $waterPos水印位置，有10种状态，0为随机位置；<br />*1为顶端居左，2为顶端居中，3为顶端居右；<br />*4为中部居左，5为中部居中，6为中部居右；<br />*7为底端居左，8为底端居中，9为底端居右；<br />* $waterImage图片水印，即作为水印的图片，暂只支持GIF,JPG,PNG格式；<br />* $waterText文字水印，即把文字作为为水印，支持ASCII码，不支持中文；<br />* $textFont文字大小，值为1、2、3、4或5，默认为5；<br />* $textColor文字颜色，值为十六进制颜色值，默认为#FF0000(红色)；<br />*<br />* 注意：Support GD 2.0，Support FreeType、GIF Read、GIF Create、JPG 、PNG<br />* $waterImage 和 $waterText 最好不要同时使用，选其中之一即可，优先使用 $waterImage。<br />* 当$waterImage有效时，参数$waterString、$stringFont、$stringColor均不生效。<br />* 加水印后的图片的文件名和 $groundImage 一样。<br />*/<br />function imageWaterMark($groundImage,$waterPos=0,$waterImage=&quot;&quot;,$waterText=&quot;&quot;,$textFont=5,$textColor=&quot;#FF0000&quot;,$myfontpath=&quot;../data/mask/cour.ttf&quot;,$w_pct,$w_quality){<br />&nbsp; &nbsp; &nbsp; &nbsp; global $fun_r,$editor;<br />&nbsp; &nbsp; &nbsp; &nbsp; if($editor==1){$a=&#39;../&#39;;}<br />&nbsp; &nbsp; &nbsp; &nbsp; elseif($editor==2){$a=&#39;../../&#39;;}<br />&nbsp; &nbsp; &nbsp; &nbsp; elseif($editor==3){$a=&#39;../../../&#39;;}<br />&nbsp; &nbsp; &nbsp; &nbsp; else{$a=&#39;&#39;;}<br />&nbsp; &nbsp; &nbsp; &nbsp; $waterImage=$waterImage?$a.$waterImage:&#39;&#39;;<br />&nbsp; &nbsp; &nbsp; &nbsp; $myfontpath=$myfontpath?$a.$myfontpath:&#39;&#39;;<br />&nbsp; &nbsp; &nbsp; &nbsp; $isWaterImage = FALSE;<br />&nbsp; &nbsp; &nbsp; &nbsp; $formatMsg = $fun_r[&#39;synotdotype&#39;];</p><p>//读取水印文件<br />&nbsp; &nbsp; &nbsp; &nbsp; if(!empty($waterImage) &amp;&amp; file_exists($waterImage)){<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $isWaterImage = TRUE;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $water_info = getimagesize($waterImage);<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $water_w= $water_info[0];//取得水印图片的宽<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $water_h= $water_info[1];//取得水印图片的高</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; switch($water_info[2]){//取得水印图片的格式<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 1:$water_im = imagecreatefromgif($waterImage);break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 2:$water_im = imagecreatefromjpeg($waterImage);break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 3:$water_im = imagecreatefrompng($waterImage);break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; default:echo $formatMsg;return &quot;&quot;;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; }</p><p>//读取背景图片<br />&nbsp; &nbsp; &nbsp; &nbsp; if(!empty($groundImage) &amp;&amp; file_exists($groundImage)) {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $ground_info = getimagesize($groundImage);<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $ground_w= $ground_info[0];//取得背景图片的宽<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $ground_h= $ground_info[1];//取得背景图片的高</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; switch($ground_info[2]){//取得背景图片的格式<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 1:$ground_im = imagecreatefromgif($groundImage);break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 2:$ground_im = imagecreatefromjpeg($groundImage);break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 3:$ground_im = imagecreatefrompng($groundImage);break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; default:echo $formatMsg;return &quot;&quot;;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; }else {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; echo $fun_r[&#39;synotdoimg&#39;];<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return &quot;&quot;;<br />&nbsp; &nbsp; &nbsp; &nbsp; }</p><p>//水印位置<br />&nbsp; &nbsp; &nbsp; &nbsp; if($isWaterImage){//图片水印<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $w = $water_w;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $h = $water_h;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $label = &quot;图片的&quot;;<br />&nbsp; &nbsp; &nbsp; &nbsp; }else{//文字水印<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $temp = imagettfbbox(ceil($textFont*2.5),0,$myfontpath,$waterText);//取得使用 TrueType 字体的文本的范围<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $w = $temp[2] - $temp[6];<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $h = $temp[3] - $temp[7];<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; unset($temp);<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $label = &quot;文字区域&quot;;<br />&nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; if( ($ground_w&lt;$w) || ($ground_h&lt;$h) ) {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; echo $fun_r[&#39;sytoosmall&#39;];<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return &#39;&#39;;<br />&nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; switch($waterPos) {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 0://随机<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posX = rand(0,($ground_w - $w));<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posY = rand(0,($ground_h - $h));<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 1://1为顶端居左<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posX = 0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posY = 0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 2://2为顶端居中<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posX = ($ground_w - $w) / 2;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posY = 0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 3://3为顶端居右<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posX = $ground_w - $w;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posY = 0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 4://4为中部居左<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posX = 0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posY = ($ground_h - $h) / 2;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 5://5为中部居中<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posX = ($ground_w - $w) / 2;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posY = ($ground_h - $h) / 2;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 6://6为中部居右<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posX = $ground_w - $w;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posY = ($ground_h - $h) / 2;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 7://7为底端居左<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posX = 0;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posY = $ground_h - $h;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 8://8为底端居中<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posX = ($ground_w - $w) / 2;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posY = $ground_h - $h;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 9://9为底端居右<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posX = $ground_w - $w;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posY = $ground_h - $h;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; default://随机<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posX = rand(0,($ground_w - $w));<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $posY = rand(0,($ground_h - $h));<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; break;<br />&nbsp; &nbsp; &nbsp; &nbsp; }</p><p>//设定图像的混色模式<br />&nbsp; &nbsp; &nbsp; &nbsp; imagealphablending($ground_im, true);</p><p>&nbsp; &nbsp; &nbsp; &nbsp; if($isWaterImage){//图片水印<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if($water_info[2]==3) {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; imagecopy($ground_im, $water_im, $posX, $posY, 0, 0, $water_w,$water_h);//拷贝水印到目标文件<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }else {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; imagecopymerge($ground_im, $water_im, $posX, $posY, 0, 0, $water_w,$water_h,$w_pct);//拷贝水印到目标文件<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; }else{//文字水印<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if( !empty($textColor) &amp;&amp; (strlen($textColor)==7) ) {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $R = hexdec(substr($textColor,1,2));<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $G = hexdec(substr($textColor,3,2));<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $B = hexdec(substr($textColor,5));<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }else {<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; echo $fun_r[&#39;synotfontcolor&#39;];<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return &quot;&quot;;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; imagestring ( $ground_im, $textFont, $posX, $posY, $waterText, imagecolorallocate($ground_im, $R, $G, $B));<br />&nbsp; &nbsp; &nbsp; &nbsp; }</p><p>//生成水印后的图片<br />&nbsp; &nbsp; &nbsp; &nbsp; @unlink($groundImage);<br />&nbsp; &nbsp; &nbsp; &nbsp; switch($ground_info[2]){//取得背景图片的格式<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 1:imagegif($ground_im,$groundImage);break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 2:imagejpeg($ground_im,$groundImage,$w_quality);break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; case 3:imagepng($ground_im,$groundImage);break;<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; default:echo $formatMsg;return &quot;&quot;;<br />&nbsp; &nbsp; &nbsp; &nbsp; }</p><p>//释放内存<br />&nbsp; &nbsp; &nbsp; &nbsp; if(isset($water_info)) unset($water_info);<br />&nbsp; &nbsp; &nbsp; &nbsp; if(isset($water_im)) imagedestroy($water_im);<br />&nbsp; &nbsp; &nbsp; &nbsp; unset($ground_info);<br />&nbsp; &nbsp; &nbsp; &nbsp; imagedestroy($ground_im);<br />}<br />?&gt;</p>