运维进行时

在线图片处理平台[原创]

Wed, 13 Jan 2010 08:05:31 +0000

平台基于php+ImageMagick+prototype.js，实现在线图片处理。可以处理来自服务器本身、远程服务器及用户本地的图片，支持JPG、BMP、GIF、FITS、PNG、TIFF、PDF、MIFF、PSD、WBMP等几十种常用文件格式。

在线测试
http://webps.liuts.com

项目托管地址
http://code.google.com/p/onlineps/

平台界面

处理代码

<?
/*
作者：刘天斯
邮箱：liutiansi@gmail.com
最后更新：2007-01-25 10:27
BLOG：http://blog.liuts.com
功能：实现根据处理ID进行相应的图片处理；
*/

session_start();
header("Content-Type: text/html;charset=GBK");
$va=$_REQUEST[va];
$vb=$_REQUEST[vb];
$vc=$_REQUEST[vc];
$vd=$_REQUEST[vd];
$ve=$_REQUEST[ve];
$optype=$_REQUEST[optype];
$textCent=$_REQUEST[textCent];
copy("Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1],"tmp/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]);
switch ($optype) {
case "1":
    exec("/usr/local/bin/convert -mattecolor ".$ve." -frame ".$va."x".$va."+".$vb." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]);
    break;
case "2":
    exec("/usr/local/bin/convert -resize ".$va."x".$va." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "3":
    exec("/usr/local/bin/convert -flip Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "4":
    exec("/usr/local/bin/convert -flop Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "5":
    exec("/usr/local/bin/convert -raise ".$va."x".$va." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "6":
    exec("/usr/local/bin/convert +raise ".$va."x".$va." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;        
case "7":
    exec("/usr/local/bin/convert -sharpen ".$va." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;    
case "8":
    exec("/usr/local/bin/convert -monochrome Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "9":
    exec("/usr/local/bin/convert -colorize ".$va.",".$vb.",".$vc." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "10":
    exec("/usr/local/bin/convert -sample 10% -sample 1000% Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;      
case "12":
    exec("/usr/local/bin/convert -rotate ".$va." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "13":
    exec("/usr/local/bin/convert -modulate 110,100,100 Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "14":
    exec("/usr/local/bin/convert -modulate 90,100,100 Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;        
case "15":
exec("/usr/local/bin/convert -modulate 100,110,100 Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "16":
exec("/usr/local/bin/convert -modulate 100,90,100 Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "17":
exec("/usr/local/bin/convert -modulate 100,100,110 Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "18":
exec("/usr/local/bin/convert -modulate 100,100,90 Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;    
case "19":
    exec("/usr/local/bin/convert Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." -crop ".$vc."x".$vd."+".$va."+".$vb." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "20":
    exec("/usr/local/bin/convert -blur ".$va."x".$vb." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;   
case "21":
    exec("/usr/local/bin/convert -noise 3 Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "22":
    exec("/usr/local/bin/convert -paint 3 Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "23":
    exec("/usr/local/bin/convert -charcoal ".$va." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "24":
    exec("/usr/local/bin/convert -spread ".$va." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "25":
    exec("/usr/local/bin/convert -swirl ".$va." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "26":
    exec("/usr/local/bin/convert -font ./MX1GJM.TTF -fill beige -pointsize 25 -draw 'text ".$va.",".($vb+19)." \"'`echo ".$textCent."|iconv -f GB2312 -t UTF-8`'\"' -fill royalblue  -pointsize 25 -draw 'text ".($va+1).",".($vb-1+19)." \"'`echo ".$textCent."|iconv -f GB2312 -t UTF-8`'\"' Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "28":
    exec("/usr/local/bin/convert -colorspace gray  -normalize -fill gray50 -colorize 70% Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;
case "29":
    exec("/usr/local/bin/convert -wave ".$va."x".$vb." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
    break;      
case "":
    $tmpimg=$_FILES['uploadimage']['name'];
    $filebase=strtolower(strrchr($_FILES['uploadimage']['name'],"."));
    if ($filebase!=".jpg" and $filebase!=".gif" and $filebase!=".png" and $filebase!=".jpeg" and $filebase!=".bmp")
    {
      $Success="0";
      $error="Ö»ÔÊÐíÉÏŽ«ÍŒÏñžñÊœÎÄŒþ£¬Èç.jpg¡¢.gif¡¢.pngµÈ¡£";
    }
    else
    {
      if (@move_uploaded_file($_FILES['uploadimage']['tmp_name'],"Finally/".$_SESSION['USERSESSION'][0]."/".$tmpimg))
      {
        $Success="1";
        $img_info = getimagesize("Finally/".$_SESSION['USERSESSION'][0]."/".$tmpimg);
        exec("/usr/local/bin/convert -draw 'image Over ".$va.",".$vb.",".$img_info[0].",".$img_info[1]." Finally/".$_SESSION['USERSESSION'][0]."/".$tmpimg."' Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]." Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."");
      }
      else
      {
        $Success="0";
        $error="ÎÄŒþÉÏŽ«Ê§°Ü£¬ÇëÓëliutiansi@gamil.comÁªÏµ¡£";
      }
    }
    break;
}

if ($optype=="19" || $optype=="26")
{
  echo "{\n";
  echo "\"item\": [\n";
  echo "            {\n";
  echo "            \"result\": \"1\",\n";
  echo "            \"link\": \"2\"\n";
  echo "             }\n";
  echo "          ]\n";
  echo "}\n";  
}
else if ($optype=="")
{
  if ($Success=="1")
  {
    echo "<script language='javascript'>\n";
    echo "window.top.opener.document.getElementById(\"Finallyimg\").src='Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]."?".time()."';\n";
    echo "top.opener=null;top.close();\n";
    echo "</script>\n";  
  }
  else
  {
    echo "<script language='javascript'>\n";
    echo "alert(\"$error\")";
    echo "</script>\n";      
  }
}
else
{
        $Finally_info=explode(" ",exec("identify Finally/".$_SESSION['USERSESSION'][0]."/".$_SESSION['USERSESSION'][1]));
        echo "";
}
?>

如大家有什么疑问或感兴趣的话题可以通过weibo与我交流：http://t.qq.com/yorkoliu
Tags - webps , 在线 , 图相处理 , photoshop

给php添加iconv模块

Sat, 19 Sep 2009 16:12:18 +0000

./configure --with-mysql=/backup/mysql --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-curl --with-gd --enable-gd-native-ttf --with-apxs2=/usr/local/apache/bin/apxs --enable-sockets --with-iconv
make时提示：

引用

.....................................................
ext/iconv/.libs/iconv.o(.text+0x1738): In function `zif_iconv_mime_encode':
/home/jjdai/work/zhupiter/php-5.2.0/ext/iconv/iconv.c:1017: undefined reference to `libiconv_open'
ext/iconv/.libs/iconv.o(.text+0x1756):/home/jjdai/work/zhupiter/php-5.2.0/ext/iconv/iconv.c:1031: undefined reference to `libiconv_open'
ext/iconv/.libs/iconv.o(.text+0x1993):/home/jjdai/work/zhupiter/php-5.2.0/ext/iconv/iconv.c:1290: undefined reference to `libiconv_close'
ext/iconv/.libs/iconv.o(.text+0x19ad):/home/jjdai/work/zhupiter/php-5.2.0/ext/iconv/iconv.c:1293: undefined reference to `libiconv_close'
ext/iconv/.libs/iconv.o(.text+0x1b01):/home/jjdai/work/zhupiter/php-5.2.0/ext/iconv/iconv.c:1102: undefined reference to `libiconv'
ext/iconv/.libs/iconv.o(.text+0x1b33):/home/jjdai/work/zhupiter/php-5.2.0/ext/iconv/iconv.c:1134: undefined reference to `libiconv'
ext/iconv/.libs/iconv.o(.text+0x1b5e):/home/jjdai/work/zhupiter/php-5.2.0/ext/iconv/iconv.c:1150: undefined reference to `libiconv'
ext/iconv/.libs/iconv.o(.text+0x1e10):/home/jjdai/work/zhupiter/php-5.2.0/ext/iconv/iconv.c:1202: undefined reference to `libiconv'
ext/iconv/.libs/iconv.o(.text+0x1e3c):/home/jjdai/work/zhupiter/php-5.2.0/ext/iconv/iconv.c:1233: undefined reference to `libiconv'
ext/iconv/.libs/iconv.o(.text+0x207f):/home/jjdai/work/zhupiter/php-5.2.0/ext/iconv/iconv.c:1277: more undefined references to `libiconv' follow
ext/iconv/.libs/iconv.o(.text+0x2c08): In function `php_iconv_stream_filter_dtor':
/home/jjdai/work/zhupiter/php-5.2.0/ext/iconv/iconv.c:2393: undefined reference to `libiconv_close'
ext/iconv/.libs/iconv.o(.text+0x2cf2): In function `php_iconv_stream_filter_append_bucket':
/home/jjdai/work/zhupiter/php-5.2.0/ext/iconv/iconv.c:2543: undefined reference to `libiconv'
ext/iconv/.libs/iconv.o(.text+0x2d34):/home/jjdai/work/zhupiter/php-5.2.0/ext/iconv/iconv.c:2543: undefined reference to `libiconv'
ext/iconv/.libs/iconv.o(.text+0x2de7):/home/jjdai/work/zhupiter/php-5.2.0/ext/iconv/iconv.c:2465: undefined reference to `libiconv'
ext/iconv/.libs/iconv.o(.text+0x30e2): In function `php_iconv_stream_filter_factory_create':
/home/jjdai/work/zhupiter/php-5.2.0/ext/iconv/iconv.c:2419: undefined reference to `libiconv_open'
collect2: ld returned 1 exit status
make: *** [sapi/cli/php] Error 1

解决方法

引用

wget http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.13.1.tar.gz
tar -zxvf libiconv-1.13.1.tar.gz
cd libiconv-1.13.1
./configure --prefix=/usr/local/libiconv
make
make install

再检查php

引用

#./configure --with-mysql=/backup/mysql --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-curl --with-gd --enable-gd-native-ttf --with-apxs2=/usr/local/apache/bin/apxs --enable-sockets --with-iconv=/usr/local/libiconv
#make
#make install

另一种解决方法为去除iconv模块也能正常编译php，如下：
編輯 Makefile 大約 77 行左右的地方:
EXTRA_LIBS = ..... -lcrypt
在最後加上 -liconv，例如:
EXTRA_LIBS = ..... -lcrypt -liconv
再运行make就可以了。
Tags - iconv

linux下用yum给php安装gd库

Thu, 22 May 2008 13:31:44 +0000

[root@localhost ~]# yum install php-gd*

引用

Setting up Install Process
Setting up repositories
base 100% |=========================| 951 B 00:00
update 100% |=========================| 951 B 00:00
================================================
GD Support enabled
GD Version bundled (2.0.28 compatible)
FreeType Support enabled
FreeType Linkage with freetype
FreeType Version 2.2.1
GIF Read Support enabled
GIF Create Support enabled
JPG Support enabled
PNG Support enabled
WBMP Support enabled
XBM Support enabled
================================================

好方便啊，呵呵：）

Tags - gd

在XP下fast-cgi安装PHP

Thu, 22 May 2008 13:09:12 +0000

好久没有在WIN下安装WAMP环境，今天配得还真有点生，写下来做文档用：）
软件包：

引用

apache_2.2.4-win32-x86-no_ssl.zip
php-5.2.6-Win32.zip
mysql-5.2.0-falcon-alpha-win32.zip

一、安装apache，安装目录：c:\apache2.2。
二、安装php，解压php-5.2.6-Win32.zip到c:\php5
三、安装mysql，安装目录c:\mysql5
四、配置apache：

修改成：

修改php.ini

引用

extension_dir = "C:\php5\ext"
extension=php_mysql.dll
extension=php_gd2.dll

Tags - php , fast-cgi

CodeIgniterURL中去掉index.php规则

Thu, 22 May 2008 12:53:33 +0000

第一步，修改httpd.conf

修改成：

作用是开启.htaccess功能。
在站点目录下新建.htaccess文件(window下不能直接创建，得先在记事本编辑好再保存为.htaccess)
方案一

引用

RewriteEngine on
RewriteCond $1 !^(index\.php|public|tmp|robots\.txt)
RewriteRule ^(.*)$ index.php/$1 [L]

方案二

引用

RewriteEngine on
RewriteOptions Inherit
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ /index.php/$1 [L]

重启apache搞定。
Tags - codeigniter

CodeIgniter结合Ajax编写搜索功能

Thu, 22 May 2008 12:48:25 +0000

需要prototype.js支持。
function_search.js

控制器

模块

视图

Tags - codeigniter , prototype

一个不错的PHP框架-Symfony

Tue, 21 Aug 2007 15:56:38 +0000

什么是Symfony?
Symfony是一个基于PHP5的网站框架(web framework)。
    根据最佳的网站编程经验，也被一些实际运作的网站验证过，Symfony能提高网站应用程式创建和维护的效率，且以强力的控制项和乐趣来取代重复性的编程工作。
symfony提供了一系列无缝整合的特性，例如：
    *简单的样板和辅助类别
    *缓存管理
    *多种环境的支持
    *部署管理
    *智慧URLs
    *骨架棚架的支持（scaffolding）
    *多语言和国际化支持
    *物件模型和MVC分离
    *支持Ajax
    *可以企业级应用
    简单的说，Symfony是专给“懒人使用的职业级网站制作工具”。
Symfony发布在MIT 的许可下, 它是完全免费的。
Tags - php , symfony

PHP汉字验证码的实现

Tue, 21 Aug 2007 15:36:14 +0000

<?php    
/*    
* 文件:chinesechar.php    
* 作用:汉字数据储存    
* 作者:PHP实战群:33918040 - 鱼尾唯一    
* 网址:http://bbs.ailf.cn/ http://www.fishwei.com/  
* 特注:版权所有转载注明出处!有付出才会有收获! 
*/    
$ChineseChar = array("人","出","来","友","学","孝","仁","义","礼","廉","忠","国","中","易","白","者","火 ","土","金","木","雷","风","龙","虎","天","地",   "生","晕","菜","鸟","田","三","百","钱","福 ","爱","情","兽","虫","鱼","九","网","新","度","哎","唉","啊","哦","仪","老","少","日",   "月 ","星");    
?>

<?php    
/*    
* 文件:check.php    
* 作用:验证    
* 作者:PHP实战群:33918040 - 鱼尾唯一    
* 网址:http://bbs.ailf.cn/ http://www.fishwei.com/   
* 特注:版权所有转载注明出处!有付出才会有收获! 
*/    
session_start();    
$errorMSG = '';    
//验证用户输入是否和验证码一致    
if(!is_null($_POST['check']))    
{    
        if (strcasecmp($_SESSION['code'],$_POST['code'])==0)    
            $errorMSG = "<p style=\"font-size:12px;color:#009900\">验证成功!</p>";    
        else    
            $errorMSG = "<p style=\"font-size:12px;color:#FF0000\">验证失败!</p>";    
}    
?>    
<html>    
<head>    
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">    
</head>    
<body>    
<?php    
if($errorMSG){    
echo $errorMSG;    
}    
?>    
<form action=<?php echo $_SERVER['PHP_SELF']?> method=post>    
请输入验证码：<input type="text" name="code" style="width:    
80px">    
<?php    
/*    
* 文件:chinesechar.php    
* 作用:汉字数据储存    
* 作者:PHP实战群:33918040 - 鱼尾唯一    
* 网址:http://bbs.ailf.cn/ http://www.fishwei.com/  
* 特注:版权所有转载注明出处!有付出才会有收获! 
*/    
$ChineseChar = array("人","出","来","友","学","孝","仁","义","礼","廉","忠","国","中","易","白","者","火 ","土","金","木","雷","风","龙","虎","天","地",   "生","晕","菜","鸟","田","三","百","钱","福 ","爱","情","兽","虫","鱼","九","网","新","度","哎","唉","啊","哦","仪","老","少","日",   "月 ","星");    
?>

<?php    
/*    
* 文件:check.php    
* 作用:验证    
* 作者:PHP实战群:33918040 - 鱼尾唯一    
* 网址:http://bbs.ailf.cn/ http://www.fishwei.com/   
* 特注:版权所有转载注明出处!有付出才会有收获! 
*/    
session_start();    
$errorMSG = '';    
//验证用户输入是否和验证码一致    
if(!is_null($_POST['check']))    
{    
        if (strcasecmp($_SESSION['code'],$_POST['code'])==0)    
            $errorMSG = "<p style=\"font-size:12px;color:#009900\">验证成功!</p>";    
        else    
            $errorMSG = "<p style=\"font-size:12px;color:#FF0000\">验证失败!</p>";    
}    
?>    
<html>    
<head>    
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">    
</head>    
<body>    
<?php    
if($errorMSG){    
echo $errorMSG;    
}    
?>    
<form action=<?php echo $_SERVER['PHP_SELF']?> method=post>    
请输入验证码：<input type="text" name="code" style="width:    
80px">    
<br/>    
<input type="submit" name="check" value="提交验证码">    
</form>    
</body>    
</html>

<?php    
/*    
* 文件:code.php    
* 作用:验证码生成    
* 作者:PHP实战群:33918040 - 鱼尾唯一    
* 网址:http://bbs.ailf.cn/ http://www.fishwei.com/    
* 特注:由 没牙的草 指导 版权所有转载注明出处!有付出才会有收获!  
*/    
include_once("chinesechar.php");    
session_start();    
// 设置 content-type    
header("Content-type: image/png");    
// 创建图片    
$im = imagecreatetruecolor(120, 30);

// 创建颜色    
$fontcolor = imagecolorallocate($im, 255, 255, 255);    
$bg = imagecolorallocate($im, 0, 0, 0);

// 设置文字    
for($i=0;$i<4;$i++) $text .= $ChineseChar[(array_rand($ChineseChar))];

$_SESSION['code'] = $text;    
// 设置字体    
$font = 'simkai.ttf';

// 添加文字    
imagettftext($im, 18, 0, 11, 21, $fontcolor, $font, iconv("GB2312","UTF-8",$text));

// 输出图片    
imagepng($im);    
imagedestroy($im);    
?><br/>    
<input type="submit" name="check" value="提交验证码">    
</form>    
</body>    
</html>

// 创建颜色    
$fontcolor = imagecolorallocate($im, 255, 255, 255);    
$bg = imagecolorallocate($im, 0, 0, 0);

// 设置文字    
for($i=0;$i<4;$i++) $text .= $ChineseChar[(array_rand($ChineseChar))];

$_SESSION['code'] = $text;    
// 设置字体    
$font = 'simkai.ttf';

// 添加文字    
imagettftext($im, 18, 0, 11, 21, $fontcolor, $font, iconv("GB2312","UTF-8",$text));

// 输出图片    
imagepng($im);    
imagedestroy($im);    
?>

Tags - php , 验证码

如何用imagemagick在图片上写中文

Tue, 21 Aug 2007 15:29:54 +0000

如何用imagemagick在图片上写中文？在帮助文档中找到的最简单的例子：
convert -background lightblue -fill blue \
-font SimSun -pointsize 48 label:@chinese_words.utf8 \
label_utf8.gif
需要把中文或多字节文字以utf-8编码写在chinese_words.utf8中，就可以用convert命令在图片上画出中文来。也可以直接在命令行中写中文，但是必须是utf-8编码，如：
convert -background lightblue -fill blue \
-font SimSun -pointsize 48 label:’某人的栖息地’ \
label_utf8.gif
最后还要注意的是，-font参数后面必须是中文字体，可以是中文字体文件的绝对路径。
个人实验通过:
1、/usr/bin/convert -font /www/client/webps/simsun.ttc -fill Black -draw 'text 20,29 "'`echo 中国人|iconv -f GB2312 -t UTF-8`'"' -fill White -draw 'text 30,39 "'`echo 中国人|iconv -f GB2312 -t UTF-8`'"' center.jpg logo.jpg

2、/usr/bin/convert -font /www/client/webps/simsun.ttc \
-fill white -pointsize 24 \
-draw 'text 10,20 "'`echo 我的照片|iconv -f GB2312 -t UTF-8`'"' \
mypic.jpg mypic-with-comment.jpg

imagemagick参考文档
http://www.imagemagick.org/Usage/text/
Tags - imagemagick

PHP Try-catch 语句

Tue, 21 Aug 2007 13:35:18 +0000

PHP Try-catch 语句
为了进一步处理异常，我们需要使用try-catch语句----包括Try语句和至少一个的catch语句。任何调用可能抛出异常的方法的代码都应该使用try语句。Catch语句用来处理可能抛出的异常。以下显示了我们处理getCommandObject()抛出的异常的方法：

可以看到，通过结合使用throw关键字和try-catch语句，我们可以避免错误标记“污染”类方法返回的值。因为“异常”本身就是一种与其它任何对象不同的PHP内建的类型，不会产生混淆。

如果抛出了一个异常，try语句中的脚本将会停止执行，然后马上转向执行catch语句中的脚本。

如果异常抛出了却没有被捕捉到，就会产生一个fatal error。