一键生成各种尺寸Icon的php脚本(实例)

　　实例如下：

　　 <?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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