本程序能批量复制图片、生成不同尺寸、重命名及分别存放。（注：我处理的全是正方形图片，其他图片未测试）
ResizeImages.class.php
<?php
/*
* 将本类放置于Org/Util目录下，再在 Controller 中实例化；
* 源图片分多个文件夹存放，文件夹名需要是数字，并且使用连续的数字命名，存放多少自己定；本例中是1-100
* 本程序运行在Thinkphp 3.2 版本下。
*/
namespace Org\Util;
class ResizeImage
{
//图片类型
var $type;
//实际宽度
var $width;
//实际高度
var $height;
//改变后的宽度
var $resize_width;
//改变后的高度
var $resize_height;
//是否裁图
var $cut;
//源图象
var $srcimg;
//目标图象地址
var $dstimg;
//临时创建的图象
var $im;
function resizeimage($img, $wid, $hei,$c,$dstpath)
{
$this->srcimg = $img;
$this->resize_width = $wid;
$this->resize_height = $hei;
$this->cut = $c;
//图片的类型
$this->type = strtolower(substr(strrchr($this->srcimg,"."),1));
//初始化图象
$this->initi_img();
//目标图象地址
$this -> dst_img($dstpath);
//--
$this->width = imagesx($this->im);
$this->height = imagesy($this->im);
//生成图象
$this->newimg();
ImageDestroy ($this->im);
}
function newimg()
{
//改变后的图象的比例
$resize_ratio = ($this->resize_width)/($this->resize_height);
//实际图象的比例
$ratio = ($this->width)/($this->height);
if(($this->cut)=="1")
//裁图
{
if($ratio>=$resize_ratio)
//高度优先
{
$newimg = imagecreatetruecolor($this->resize_width,$this->resize_height);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width,$this->resize_height, (($this->height)*$resize_ratio), $this->height);
ImageJpeg ($newimg,$this->dstimg);
}
if($ratio<$resize_ratio)
//宽度优先
{
$newimg = imagecreatetruecolor($this->resize_width,$this->resize_height);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width, $this->resize_height, $this->width, (($this->width)/$resize_ratio));
ImageJpeg ($newimg,$this->dstimg);
}
}
else
//不裁图
{
if($ratio>=$resize_ratio)
{
$newimg = imagecreatetruecolor($this->resize_width,($this->resize_width)/$ratio);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width, ($this->resize_width)/$ratio, $this->width, $this->height);
ImageJpeg ($newimg,$this->dstimg);
}
if($ratio<$resize_ratio)
{
$newimg = imagecreatetruecolor(($this->resize_height)*$ratio,$this->resize_height);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, ($this->resize_height)*$ratio, $this->resize_height, $this->width, $this->height);
ImageJpeg ($newimg,$this->dstimg);
}
}
}
//初始化图象
function initi_img()
{
if($this->type=="jpg")
{
$this->im = imagecreatefromjpeg($this->srcimg);
}
if($this->type=="gif")
{
$this->im = imagecreatefromgif($this->srcimg);
}
if($this->type=="png")
{
$this->im = imagecreatefrompng($this->srcimg);
}
}
//图象目标地址
function dst_img($dstpath)
{
$full_length = strlen($this->srcimg);
$type_length = strlen($this->type);
$name_length = $full_length-$type_length;
$name = substr($this->srcimg,0,$name_length-1);
$this->dstimg = $dstpath;
//echo $this->dstimg;
}
}
?>小程序： function madeImgs()
{
set_time_limit(0);
for($i=1;$i<100;$i++){
$dir ='./Public/portrait/500000/'.$i.'/'; //读取源图片路径
$files = glob($dir.'*.jpg'); //搜索指定类型的图片
foreach($files as $v){
$n = str_replace($dir,'',$v); //把路径替换为空，只留下图片名称
$resizeimage = new \Org\Util\ResizeImage($v, '24', '24', "0", './Public/portrait/'.$i.'/24_'.$n);
$resizeimage = new \Org\Util\ResizeImage($v, '75', '75', "0", './Public/portrait/'.$i.'/75_'.$n);
$resizeimage = new \Org\Util\ResizeImage($v, '130', '130', "0", './Public/portrait/'.$i.'/130_'.$n);
//实例化ResizeImage对象，后面参数：1、源图片路径；2、图片宽度；3、图片高度；4、不用管；5、存放图片目录并且修改名称（加前缀）。
//建议处理正方形图片，其他规格的图片我没有测试！
}
}
} 最佳答案
