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']);
} 

?> 

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我们。