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] .= "x28x00x00x00"; // 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] .= "x01x00"; // word biplanes;
$bitmapinfoheader[$key] .= chr($bpp[$key])."x00"; // wbitcount;
$bitmapinfoheader[$key] .= "x00x00x00x00"; // dword bicompression;
$bitmapinfoheader[$key] .= $this->littleendian2string($bisizeimage, 4); // dword bisizeimage;
$bitmapinfoheader[$key] .= "x00x00x00x00"; // long bixpelspermeter;
$bitmapinfoheader[$key] .= "x00x00x00x00"; // long biypelspermeter;
$bitmapinfoheader[$key] .= "x00x00x00x00"; // dword biclrused;
$bitmapinfoheader[$key] .= "x00x00x00x00"; // dword biclrimportant;
}
$icondata = "x00x00"; // idreserved; // reserved (must be 0)
$icondata .= "x01x00"; // 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 .= "x01x00"; // 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>
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