实例如下：
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<?php
/**
* @name thumb 缩略图函数
* @param sting $img_name 图片路径
* @param int $max_width 略图最大宽度
* @param int $max_height 略图最大高度
* @param sting $suffix 略图后缀(如"img_x.jpg"代表小图,"img_m.jpg"代表中图,"img_l.jpg"代表大图)
* @return void
*/
function thumb($img_name,$max_width,$max_height,$path,$new_name)
{
$img_infos = getimagesize($img_name);
$img_height = $img_infos[0];//图片高
$img_width = $img_infos[1]; //图片宽
$img_extension = ''; //图片后缀名
switch($img_infos[2])
{
case 1:
$img_extension = 'gif';
break;
case 2:
$img_extension = 'jpeg';
break;
case 3:
$img_extension = 'png';
break;
default:
$img_extension = 'jpeg';
break;
}
$new_img_size = array();
$new_img_size['width'] = $max_width;
$new_img_size['height'] = $max_height;
$img_func = ''; //函数名称
$img_handle = ''; //图片句柄
$thum_handle = ''; //略图图片句柄
switch($img_extension)
{
case 'jpg':
$img_handle = imagecreatefromjpeg($img_name);
$img_func = 'imagejpeg';
break;
case 'jpeg':
$img_handle = imagecreatefromjpeg($img_name);
$img_func = 'imagejpeg';
break;
case 'png':
$img_handle = imagecreatefrompng($img_name);
imagesavealpha($img_handle, true);
$img_func = 'imagepng';
break;
case 'gif':
$img_handle = imagecreatefromgif($img_name);
$img_func = 'imagegif';
break;
default:
$img_handle = imagecreatefromjpeg($img_name);
$img_func = 'imagejpeg';
break;
}
$quality = 100;//图片质量
if($img_func == 'imagepng')
{
$quality = 9;
}
$thum_handle = imagecreatetruecolor($new_img_size['height'],$new_img_size['width']);
imagealphablending($thum_handle,false);//这里很重要,意思是不合并颜色,直接用$img图像颜色替换,包括透明色;
imagesavealpha($thum_handle,true);//这里很重要,意思是不要丢了$thumb图像的透明色;
if(function_exists('imagecopyresampled'))
{
imagecopyresampled($thum_handle,$img_handle, 0, 0, 0, 0,$new_img_size['height'],$new_img_size['width'],$img_height,$img_width);
}
else
{
imagecopyresized($thum_handle,$img_handle, 0, 0, 0, 0,$new_img_size['height'],$new_img_size['width'],$img_height,$img_width);
}
call_user_func_array($img_func,array($thum_handle,$path.'/'.$new_name,$quality));
imagedestroy($thum_handle);//清除句柄
imagedestroy($img_handle);//清除句柄
}
$IconArray = array
(
"IOS8" => array
(
array("width" => 180, "height"=> 180, "path"=>"ios8", "name"=>"Icon-180.png"),
array("width" => 120, "height"=> 120, "path"=>"ios8", "name"=>"Icon-120.png"),
array("width" => 152, "height"=> 152, "path"=>"ios8", "name"=>"Icon-152.png"),
array("width" => 76, "height"=> 76, "path"=>"ios8", "name"=>"Icon-76.png"),
array("width" => 144, "height"=> 144, "path"=>"ios8", "name"=>"Icon-144.png"),
array("width" => 72, "height"=> 72, "path"=>"ios8", "name"=>"Icon-72.png"),
array("width" => 114, "height"=> 114, "path"=>"ios8", "name"=>"Icon-114.png"),
array("width" => 57, "height"=> 57, "path"=>"ios8", "name"=>"Icon-57.png"),
array("width" => 100, "height"=> 100, "path"=>"ios8", "name"=>"Icon-100.png"),
array("width" => 50, "height"=> 50, "path"=>"ios8", "name"=>"Icon-50.png"),
array("width" => 80, "height"=> 80, "path"=>"ios8", "name"=>"Icon-80.png"),
array("width" => 40, "height"=> 40, "path"=>"ios8", "name"=>"Icon-40.png"),
array("width" => 58, "height"=> 58, "path"=>"ios8", "name"=>"Icon-58.png"),
array("width" => 29, "height"=> 29, "path"=>"ios8", "name"=>"Icon-29.png"),
),
"IOS" => array
(
array("width" => 180, "height"=> 180, "path"=>"ios", "name"=>"Icon-60@3x.png"),
array("width" => 120, "height"=> 120, "path"=>"ios", "name"=>"Icon-60@2x.png"),
array("width" => 152, "height"=> 152, "path"=>"ios", "name"=>"Icon-76@2x.png"),
array("width" => 76, "height"=> 76, "path"=>"ios", "name"=>"Icon-76.png"),
array("width" => 144, "height"=> 144, "path"=>"ios", "name"=>"Icon-72@2x.png"),
array("width" => 72, "height"=> 72, "path"=>"ios", "name"=>"Icon-72.png"),
array("width" => 114, "height"=> 114, "path"=>"ios", "name"=>"Icon-57@2x.png"),
array("width" => 57, "height"=> 57, "path"=>"ios", "name"=>"Icon-57.png"),
array("width" => 100, "height"=> 100, "path"=>"ios", "name"=>"Icon-50@2x.png"),
array("width" => 50, "height"=> 50, "path"=>"ios", "name"=>"Icon-50.png"),
array("width" => 80, "height"=> 80, "path"=>"ios", "name"=>"Icon-40@2x.png"),
array("width" => 40, "height"=> 40, "path"=>"ios", "name"=>"Icon-40.png"),
array("width" => 58, "height"=> 58, "path"=>"ios", "name"=>"Icon-29@2x.png"),
array("width" => 29, "height"=> 29, "path"=>"ios", "name"=>"Icon-29.png"),
)
,
"ANDROID" => array
(
array("width" => 144, "height" => 144, "path" => "android/drawable", "name"=>"icon.png"),
array("width" => 144, "height" => 144, "path" => "android/drawable-xhdpi", "name"=>"icon.png"),
array("width" => 72, "height" => 72, "path" => "android/drawable-hdpi", "name"=>"icon.png"),
array("width" => 48, "height" => 48, "path" => "android/drawable-mdpi", "name"=>"icon.png"),
array("width" => 32, "height" => 32, "path" => "android/drawable-ldpi", "name"=>"icon.png")
)
);
foreach ($IconArray["IOS8"] as $key => $IconType)
{
thumb("icon.png",$IconType['width'],$IconType['height'],$IconType['path'],$IconType['name']);
}
foreach ($IconArray["IOS"] as $key => $IconType)
{
thumb("icon.png",$IconType['width'],$IconType['height'],$IconType['path'],$IconType['name']);
}
foreach ($IconArray["ANDROID"] as $key => $IconType)
{
thumb("icon.png",$IconType['width'],$IconType['height'],$IconType['path'],$IconType['name']);
}
?>
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以上这篇一键生成各种尺寸Icon的php脚本(实例)就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。