PHP基于yii框架实现生成ICO图标

1，phpthumb_ico 是生成ICO图标的类，源码如下

class phpthumb_ico {

function phpthumb_ico() {
   return true;
 }

function GD2ICOstring(&$gd_image_array) {
   foreach ($gd_image_array as $key => $gd_image) {

$ImageWidths[$key] = ImageSX($gd_image);
     $ImageHeights[$key] = ImageSY($gd_image);
     $bpp[$key]     = ImageIsTrueColor($gd_image) ? 32 : 24;
     $totalcolors[$key] = ImageColorsTotal($gd_image);

$icXOR[$key] = '';
     for ($y = $ImageHeights[$key] - 1; $y >= 0; $y--) {
       for ($x = 0; $x < $ImageWidths[$key]; $x++) {
         $argb = $this->GetPixelColor($gd_image, $x, $y);
         $a = round(255 * ((127 - $argb['alpha']) / 127));
         $r = $argb['red'];
         $g = $argb['green'];
         $b = $argb['blue'];

if ($bpp[$key] == 32) {
           $icXOR[$key] .= chr($b).chr($g).chr($r).chr($a);
         } elseif ($bpp[$key] == 24) {
           $icXOR[$key] .= chr($b).chr($g).chr($r);
         }

if ($a < 128) {
           @$icANDmask[$key][$y] .= '1';
         } else {
           @$icANDmask[$key][$y] .= '0';
         }
       }
       // mask bits are 32-bit aligned per scanline
       while (strlen($icANDmask[$key][$y]) ％ 32) {
         $icANDmask[$key][$y] .= '0';
       }
     }
     $icAND[$key] = '';
     foreach ($icANDmask[$key] as $y => $scanlinemaskbits) {
       for ($i = 0; $i < strlen($scanlinemaskbits); $i += 8) {
         $icAND[$key] .= chr(bindec(str_pad(substr($scanlinemaskbits, $i, 8), 8, '0', STR_PAD_LEFT)));
       }
     }

}

foreach ($gd_image_array as $key => $gd_image) {
     $biSizeImage = $ImageWidths[$key] * $ImageHeights[$key] * ($bpp[$key] / 8);

// BITMAPINFOHEADER - 40 bytes
     $BitmapInfoHeader[$key] = '';
     $BitmapInfoHeader[$key] .= "\x28\x00\x00\x00";               // DWORD biSize;
     $BitmapInfoHeader[$key] .= $this->LittleEndian2String($ImageWidths[$key], 4);   // LONG  biWidth;
     // The biHeight member specifies the combined
     // height of the XOR and AND masks.
     $BitmapInfoHeader[$key] .= $this->LittleEndian2String($ImageHeights[$key] * 2, 4); // LONG  biHeight;
     $BitmapInfoHeader[$key] .= "\x01\x00";                   // WORD  biPlanes;
       $BitmapInfoHeader[$key] .= chr($bpp[$key])."\x00";             // wBitCount;
     $BitmapInfoHeader[$key] .= "\x00\x00\x00\x00";               // DWORD biCompression;
     $BitmapInfoHeader[$key] .= $this->LittleEndian2String($biSizeImage, 4);      // DWORD biSizeImage;
     $BitmapInfoHeader[$key] .= "\x00\x00\x00\x00";               // LONG  biXPelsPerMeter;
     $BitmapInfoHeader[$key] .= "\x00\x00\x00\x00";               // LONG  biYPelsPerMeter;
     $BitmapInfoHeader[$key] .= "\x00\x00\x00\x00";               // DWORD biClrUsed;
     $BitmapInfoHeader[$key] .= "\x00\x00\x00\x00";               // DWORD biClrImportant;
   }

$icondata = "\x00\x00";                   // idReserved;  // Reserved (must be 0)
   $icondata .= "\x01\x00";                   // idType;    // Resource Type (1 for icons)
   $icondata .= $this->LittleEndian2String(count($gd_image_array), 2); // idCount;   // How many images?

$dwImageOffset = 6 + (count($gd_image_array) * 16);
   foreach ($gd_image_array as $key => $gd_image) {
     // ICONDIRENTRY  idEntries[1]; // An entry for each image (idCount of 'em)

$icondata .= chr($ImageWidths[$key]);           // bWidth;     // Width, in pixels, of the image
     $icondata .= chr($ImageHeights[$key]);          // bHeight;     // Height, in pixels, of the image
     $icondata .= chr($totalcolors[$key]);           // bColorCount;   // Number of colors in image (0 if >=8bpp)
     $icondata .= "\x00";                   // bReserved;    // Reserved ( must be 0)

$icondata .= "\x01\x00";                 // wPlanes;     // Color Planes
     $icondata .= chr($bpp[$key])."\x00";           // wBitCount;    // Bits per pixel

$dwBytesInRes = 40 + strlen($icXOR[$key]) + strlen($icAND[$key]);
     $icondata .= $this->LittleEndian2String($dwBytesInRes, 4);    // dwBytesInRes;  // How many bytes in this resource?

$icondata .= $this->LittleEndian2String($dwImageOffset, 4);   // dwImageOffset;  // Where in the file is this image?
     $dwImageOffset += strlen($BitmapInfoHeader[$key]);
     $dwImageOffset += strlen($icXOR[$key]);
     $dwImageOffset += strlen($icAND[$key]);
   }

foreach ($gd_image_array as $key => $gd_image) {
     $icondata .= $BitmapInfoHeader[$key];
     $icondata .= $icXOR[$key];
     $icondata .= $icAND[$key];
   }

return $icondata;
 }

function LittleEndian2String($number, $minbytes=1) {
   $intstring = '';
   while ($number > 0) {
     $intstring = $intstring.chr($number & 255);
     $number >>= 8;
   }
   return str_pad($intstring, $minbytes, "\x00", STR_PAD_RIGHT);
 }

function GetPixelColor(&$img, $x, $y) {
   if (!is_resource($img)) {
     return false;
   }
   return @ImageColorsForIndex($img, @ImageColorAt($img, $x, $y));
 }

}

2，后台

引入类：

Yii::$enableIncludePath = false;
Yii::import ( 'application.extensions.ico.phpthumb_ico', 1 );

解决生成黑色背景的问题

imagealphablending($resize_im, false);//不合并颜色,直接用$im图像颜色替换,包括透明色
imagesavealpha($resize_im, true);//不要丢了$resize_im图像的透明色
完整方法：

/**
  * icoMaker 在线生成ICO图标
  * @author flashalliance
  */
 public function actionIco() {
   $this->breadcrumbs=array_merge($this->breadcrumbs,array(
       'ICO图标制作'
   ));
   $output = "";
   $errors=array();
   if(isset($_GET['action'])&&$_GET['action'] == 'make'){
     if(isset($_FILES['upimage']['tmp_name']) && $_FILES['upimage']['tmp_name'] && is_uploaded_file($_FILES['upimage']['tmp_name'])){
       if($_FILES['upimage']['size']>204800){
         $errors[]="你上传的文件过大，最大不能超过200K。";
       }
       $fileext = array("image/pjpeg","image/jpeg","image/gif","image/x-png","image/png");
       if(!in_array($_FILES['upimage']['type'],$fileext)){
         $errors[]="你上传的文件格式不正确，仅支持 png, jpg, gif格式。";
       }
       if($im = @imagecreatefrompng($_FILES['upimage']['tmp_name']) or $im = @imagecreatefromgif($_FILES['upimage']['tmp_name']) or $im = @imagecreatefromjpeg($_FILES['upimage']['tmp_name'])){
         $imginfo = @getimagesize($_FILES['upimage']['tmp_name']);
         if(!is_array($imginfo)){
           $errors[]="图像格式错误！";
         }
         if(empty($errors)){
           switch($_POST['size']){
             case 1;
             $resize_im = @imagecreatetruecolor(16,16);
             $size = 16;
             break;
             case 2;
             $resize_im = @imagecreatetruecolor(32,32);
             $size = 32;
             break;
             case 3;
             $resize_im = @imagecreatetruecolor(48,48);
             $size = 48;
             break;
             default;
             $resize_im = @imagecreatetruecolor(32,32);
             $size = 32;
             break;
           }

imagesavealpha($im, true);
           imagealphablending($resize_im, false);//不合并颜色,直接用$im图像颜色替换,包括透明色
           imagesavealpha($resize_im, true);//不要丢了$resize_im图像的透明色,解决生成黑色背景的问题
           imagecopyresampled($resize_im,$im,0,0,0,0,$size,$size,$imginfo[0],$imginfo[1]);

Yii::$enableIncludePath = false;
           Yii::import ( 'application.extensions.ico.phpthumb_ico', 1 );
           $icon = new phpthumb_ico();
           $gd_image_array = array($resize_im);
           $icon_data = $icon->GD2ICOstring($gd_image_array);
           $bas_path=dirname ( Yii::app ()->BasePath );
           $bas_new_path=$bas_path.'/upload/ico/';
           if(!is_dir($bas_new_path)){
             mkdir($bas_new_path, 0777, true);
           }
           $filePath=$bas_new_path. date("Ymdhis").uniqid(). rand(1,1000) . ".ico";
           if(file_put_contents($filePath, $icon_data)){
             $output = str_replace($bas_path,'',$filePath);
           }
         }
       }else{
         $errors[]="生成错误请重试！";
       }
     }
   }
   $this->render ( 'ico',array('output'=>$output,'errors'=>$errors));
 }

3，前台

<div class="col-md-12">
 <div class="form-horizontal panel panel-default margin-t-10 b-img">
   <div class="panel-heading">
     <div class="pull-left"><span class="g-bg glyphicon glyphicon-wrench margin-r-2" aria-hidden="true"></span>在线制作ICO图标</div>
     <div class="clearfix"></div>
   </div>
<?php
$form = $this->beginWidget ( 'CActiveForm', array (
   'id' => 'ico-form',
   'htmlOptions' => array (
       'id' => 'view_table',
       'class' => 'add-form padding-10',
       'enctype'=>'multipart/form-data'
   ),
   'action'=>'/tool/ico?action=make',
   'enableAjaxValidation' => false
) );
?>
   <div class="form-group">
       <label class="col-lg-2 control-label">上传文件</label>
       <div class="col-md-5">
         <div class="col-md-6">
           <input id="upimage" type="file" name="upimage" class="hidden">
           <input id="tmp_file" class="form-control" type="text">
         </div>
         <div class="col-md-6"><a class="btn btn-default" onclick="$('input[id=upimage]').click();">选择文件</a></div>
       </div>
   </div>
   <div class="form-group">
       <label class="col-lg-2 text-right">选择尺寸</label>
       <div class="col-lg-5 btn-group" data-toggle="buttons">
           <label class="btn btn-sm btn-default">
            <input type="radio" name="size" id="s1" value="1" checked="checked"> 16*16
           </label>
           <label class="btn btn-sm btn-default">
            <input type="radio" name="size" id="s2" value="2"> 32*32
           </label>
           <label class="btn btn-sm btn-default">
            <input type="radio" name="size" id="s3" value="3"> 48*48
           </label>
       </div>
   </div>
   <div class="form-group">
     <label class="col-lg-2 text-right">支持格式</label>
     <div class="col-lg-5">
      png，jpg，gif
     </div>
   </div>
   <div class="list_back">
     <input type="submit" value="生成" class="btn btn-success">
   </div>
 </div>
<?php $this->endWidget(); ?>
<?php if(!empty($errors) or !empty($output)):?>
 <div class="form-horizontal panel panel-default margin-t-10 b-img">
   <div class="panel-heading margin-b-10">
     <div class="pull-left"><span class="g-bg glyphicon glyphicon-wrench margin-r-2" aria-hidden="true"></span>生成结果</div>
     <div class="clearfix"></div>
   </div>
   <?php if(!empty($errors)):?>
   <div class="form-group">
     <label class="col-lg-2 text-right">生成失败</label>
     <div class="col-lg-5">
     <?php foreach ($errors as $e):?>
     <?php echo $e;?><br>
     <?php endforeach;?>
     </div>
   </div>
   <?php endif;?>
   <?PHP if (!empty($output)):?>
   <?php
   $form = $this->beginWidget ( 'CActiveForm', array (
       'id' => 'ico-form',
       'htmlOptions' => array (
           'id' => 'view_table',
           'class' => 'add-form padding-10',
       ),
       'action'=>'/tool/icoDownload',
       'enableAjaxValidation' => false
   ) );
   ?>
   <?php echo CHtml::hiddenField('filePath',$output);?>
   <div class="form-group">
     <label class="col-lg-2 text-right">成功生成</label>
     <div class="col-lg-5">
       <img alt="在线制作ICO图标_favicon.ico" src="<?php echo $output;?>" class="margin-r-10">
       <input type="submit" value="立即下载" class="btn btn-sm btn-success margin-l-10">
     </div>
   </div>
   <?php $this->endWidget(); ?>
   <?php endif;?>
 </div>
<?php endif;?>
</div>
<!-- form -->

再给大家分享一个独立的类

phpthumb.ico.php

<?php
//////////////////////////////////////////////////////////////
/// phpThumb() by James Heinrich <info@silisoftware.com>  //
//    available at http://phpthumb.sourceforge.net   ///
//////////////////////////////////////////////////////////////
///                             //
// phpthumb.ico.php - .ICO output format functions     //
//                             ///
//////////////////////////////////////////////////////////////
class phpthumb_ico {
 function phpthumb_ico() {
   return true;
 }
 function GD2ICOstring(&$gd_image_array) {
   foreach ($gd_image_array as $key => $gd_image) {
     $ImageWidths[$key] = ImageSX($gd_image);
     $ImageHeights[$key] = ImageSY($gd_image);
     $bpp[$key]     = ImageIsTrueColor($gd_image) ? 32 : 24;
     $totalcolors[$key] = ImageColorsTotal($gd_image);
     $icXOR[$key] = '';
     for ($y = $ImageHeights[$key] - 1; $y >= 0; $y--) {
       for ($x = 0; $x < $ImageWidths[$key]; $x++) {
         $argb = $this->GetPixelColor($gd_image, $x, $y);
         $a = round(255 * ((127 - $argb['alpha']) / 127));
         $r = $argb['red'];
         $g = $argb['green'];
         $b = $argb['blue'];
         if ($bpp[$key] == 32) {
           $icXOR[$key] .= chr($b).chr($g).chr($r).chr($a);
         } elseif ($bpp[$key] == 24) {
           $icXOR[$key] .= chr($b).chr($g).chr($r);
         }
         if ($a < 128) {
           @$icANDmask[$key][$y] .= '1';
         } else {
           @$icANDmask[$key][$y] .= '0';
         }
       }
       // mask bits are 32-bit aligned per scanline
       while (strlen($icANDmask[$key][$y]) ％ 32) {
         $icANDmask[$key][$y] .= '0';
       }
     }
     $icAND[$key] = '';
     foreach ($icANDmask[$key] as $y => $scanlinemaskbits) {
       for ($i = 0; $i < strlen($scanlinemaskbits); $i += 8) {
         $icAND[$key] .= chr(bindec(str_pad(substr($scanlinemaskbits, $i, 8), 8, '0', STR_PAD_LEFT)));
       }
     }
   }
   foreach ($gd_image_array as $key => $gd_image) {
     $biSizeImage = $ImageWidths[$key] * $ImageHeights[$key] * ($bpp[$key] / 8);
     // BITMAPINFOHEADER - 40 bytes
     $BitmapInfoHeader[$key] = '';
     $BitmapInfoHeader[$key] .= "/x28/x00/x00/x00";               // DWORD biSize;
     $BitmapInfoHeader[$key] .= $this->LittleEndian2String($ImageWidths[$key], 4);   // LONG  biWidth;
     // The biHeight member specifies the combined
     // height of the XOR and AND masks.
     $BitmapInfoHeader[$key] .= $this->LittleEndian2String($ImageHeights[$key] * 2, 4); // LONG  biHeight;
     $BitmapInfoHeader[$key] .= "/x01/x00";                   // WORD  biPlanes;
       $BitmapInfoHeader[$key] .= chr($bpp[$key])."/x00";             // wBitCount;
     $BitmapInfoHeader[$key] .= "/x00/x00/x00/x00";               // DWORD biCompression;
     $BitmapInfoHeader[$key] .= $this->LittleEndian2String($biSizeImage, 4);      // DWORD biSizeImage;
     $BitmapInfoHeader[$key] .= "/x00/x00/x00/x00";               // LONG  biXPelsPerMeter;
     $BitmapInfoHeader[$key] .= "/x00/x00/x00/x00";               // LONG  biYPelsPerMeter;
     $BitmapInfoHeader[$key] .= "/x00/x00/x00/x00";               // DWORD biClrUsed;
     $BitmapInfoHeader[$key] .= "/x00/x00/x00/x00";               // DWORD biClrImportant;
   }
   $icondata = "/x00/x00";                   // idReserved;  // Reserved (must be 0)
   $icondata .= "/x01/x00";                   // idType;    // Resource Type (1 for icons)
   $icondata .= $this->LittleEndian2String(count($gd_image_array), 2); // idCount;   // How many images?
   $dwImageOffset = 6 + (count($gd_image_array) * 16);
   foreach ($gd_image_array as $key => $gd_image) {
     // ICONDIRENTRY  idEntries[1]; // An entry for each image (idCount of 'em)
     $icondata .= chr($ImageWidths[$key]);           // bWidth;     // Width, in pixels, of the image
     $icondata .= chr($ImageHeights[$key]);          // bHeight;     // Height, in pixels, of the image
     $icondata .= chr($totalcolors[$key]);           // bColorCount;   // Number of colors in image (0 if >=8bpp)
     $icondata .= "/x00";                   // bReserved;    // Reserved ( must be 0)
     $icondata .= "/x01/x00";                 // wPlanes;     // Color Planes
     $icondata .= chr($bpp[$key])."/x00";           // wBitCount;    // Bits per pixel
     $dwBytesInRes = 40 + strlen($icXOR[$key]) + strlen($icAND[$key]);
     $icondata .= $this->LittleEndian2String($dwBytesInRes, 4);    // dwBytesInRes;  // How many bytes in this resource?
     $icondata .= $this->LittleEndian2String($dwImageOffset, 4);   // dwImageOffset;  // Where in the file is this image?
     $dwImageOffset += strlen($BitmapInfoHeader[$key]);
     $dwImageOffset += strlen($icXOR[$key]);
     $dwImageOffset += strlen($icAND[$key]);
   }
   foreach ($gd_image_array as $key => $gd_image) {
     $icondata .= $BitmapInfoHeader[$key];
     $icondata .= $icXOR[$key];
     $icondata .= $icAND[$key];
   }
   return $icondata;
 }
 function LittleEndian2String($number, $minbytes=1) {
   $intstring = '';
   while ($number > 0) {
     $intstring = $intstring.chr($number & 255);
     $number >>= 8;
   }
   return str_pad($intstring, $minbytes, "/x00", STR_PAD_RIGHT);
 }
 function GetPixelColor(&$img, $x, $y) {
   if (!is_resource($img)) {
     return false;
   }
   return @ImageColorsForIndex($img, @ImageColorAt($img, $x, $y));
 }
}
?>

 index.php

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>ico图标</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<div class="center">
<?PHP
$output = "";
if(isset($_GET['action'])&&$_GET['action'] == 'make'){
 if(isset($_FILES['upimage']['tmp_name']) && $_FILES['upimage']['tmp_name'] && is_uploaded_file($_FILES['upimage']['tmp_name'])){
   if($_FILES['upimage']['type']>210000){
     echo "你上传的文件体积超过了限制 最大不能超过200K";
     exit();
   }
   $fileext = array("image/pjpeg","image/gif","image/x-png","image/png","image/jpeg","image/jpg");
   if(!in_array($_FILES['upimage']['type'],$fileext)){
     echo "你上传的文件格式不正确 仅支持 jpg，gif，png";
     exit();
   }
   if($im = @imagecreatefrompng($_FILES['upimage']['tmp_name']) or $im = @imagecreatefromgif($_FILES['upimage']['tmp_name']) or $im = @imagecreatefromjpeg($_FILES['upimage']['tmp_name'])){
     $imginfo = @getimagesize($_FILES['upimage']['tmp_name']);
     if(!is_array($imginfo)){
       echo "图形格式错误！";
     }
     switch($_POST['size']){
       case 1;
         $resize_im = @imagecreatetruecolor(16,16);
         $size = 16;
         break;
       case 2;
         $resize_im = @imagecreatetruecolor(32,32);
         $size = 32;
         break;
       case 3;
         $resize_im = @imagecreatetruecolor(48,48);
         $size = 48;
         break;
       default;
         $resize_im = @imagecreatetruecolor(32,32);
         $size = 32;
         break;
     }
     imagecopyresampled($resize_im,$im,0,0,0,0,$size,$size,$imginfo[0],$imginfo[1]);
     include "phpthumb.ico.php";
     $icon = new phpthumb_ico();
     $gd_image_array = array($resize_im);
     $icon_data = $icon->GD2ICOstring($gd_image_array);
     $filename = "temp/".date("Ymdhis").rand(1,1000).".ico";
     if(file_put_contents($filename, $icon_data)){
       $output = "生成成功！请点右键->另存为 保存到本地<br><a href="/" mce_href="/""".$filename."/" target=/"_blank/">点击下载</a>";
     }
   }else{
     echo "生成错误请重试！";
   }
 }  
}
?>
<form action="index.php?action=make" method="post" enctype='multipart/form-data'>
<table width="90％" align="center">
<tr>
<td height="40"><h3>请上传你要转换成.<a href="http://ico.sevem.cn" mce_href="http://ico.sevem.cn" target="_blank">ico</a>的图片</h3>
支持格式 png、jpg、gif在线转换成.<a href="http://ico.sevem.cn" mce_href="http://ico.sevem.cn" target="_blank">ico</a>图标。如何你想制作更丰富的.<a href="http://ico.sevem.cn" mce_href="http://ico.sevem.cn" target="_blank">ico</a>图标请<a href="#ico" mce_href="#ico">下载ICO制作软件</a></td>
</tr>
<tr>
<td height="40"><input type="file" name="upimage" size="30">目标尺寸：
<input type="radio" name="size" value="1" id="s1"><label for="s1">16*16</label>
<input type="radio" name="size" value="2" id="s2" checked><label for="s2">32*32</label>
<input type="radio" name="size" value="3" id="s3"><label for="s3">48*48</label>
</td>
</tr>

<tr>
<td height="40" align="center"><input type="submit" style="width:150px; height:30px;" value="在线生成favicon.ico图标"></td>
</tr>
<?PHP
if($output){
echo "<tr><td><div style="/" mce_style="/""border:1px solid #D8D8B2;background-color:#FFFFDD;padding:10px/">".$output."</div></td></tr>";
}
?>
</table>
<div style="display:none" mce_style="display:none">
<?php
$doc = new DOMDocument();
$doc->load( 'http://link.qim.net.cn/xml.xml' );

$links = $doc->getElementsByTagName( "link" );
foreach( $links as $link )
{
$publishers = $link->getElementsByTagName( "homepage" );
$homepage = $publishers->item(0)->nodeValue;

$titles = $link->getElementsByTagName( "title" );
$title = $titles->item(0)->nodeValue;

$contents = $link->getElementsByTagName( "content" );
$content = $contents->item(0)->nodeValue;

echo "<a href="$homepage" mce_href="$homepage" title='$content' target='_blank' ></a>$title</a><br>";
}
?>
</div>
</form>

</body>
</html>