ThinkPHP实现图片上传操作的方法详解

<?php
//文件上传类（可以设置多个参数）
function upload($file=null,$maxSize=0,$exts=0,$savePath='')
{
  //调用
  $upload = new \Think\Upload();// 实例化上传类
  $upload->maxSize  = $maxSize;// 设置附件上传大小
  $upload->exts   = $exts; //array('jpg', 'gif', 'png', 'jpeg'); 设置附件上传类型
  $upload->savePath = $savePath; // 设置附件上传目录
  // 上传文件
  //如果单个文件还是多个文件
  if($file){
   $info = $upload->uploadOne($file);
  }else{
  $info = $upload->upload();
  }
  //判定是否文件上传成功de
  if(!$info) {
    return false;
  }else{
  // 上传成功,
    return $info;
  }
}
//上传图片
function fab_upload($files ,$maxSize = 0,$exts = null,$savePath = '')
{
  //判定文件信息是否为空
  if(empty($files)){
    return false;
  }
  if($exts === null){
    $exts = array('jpg', 'gif', 'png', 'jpeg');
  }else{
    $exts = 0;
  }
  $tmp = array();
  //将文件信息（数组）用foreach循环遍历，
  foreach($files as $k => $v){
  //判定文件大于0之后，将遍历value作为参数传入upload方法
    if($v['size'] > 0){
      $res = upload($v,$maxSize,$exts,$savePath);
      //如果传入成功就会将文件存储路径传入数组$tmp[]之中
      if($res){
        $tmp[$k] = $res['savepath'].$res['savename'];
      }
    }
  }
  //将存储传入文件路径的数组return回去
  return $tmp;
}
?>

<form action="{:U('Index/infoupload')}" method="post"style="overflow: hidden;clear: both;" enctype="multipart/form-data">
<div class="contact_r col-md-4">
  <label class="contact_rc contact_file"><span><b>入台證：</b><input class="inp_zj1" type="file" name="rutaiimg" ></span></label>
  <!-- <a class="contact_sp fancybox" href="images/txz1.jpg" rel="external nofollow" rel="external nofollow" >如圖示</a> -->
</div>
<div class="contact_r col-md-4">
  <label class="contact_rc contact_file"><span><b>通行證：</b><input class="inp_zj2" type="file" name="tongxingimg" ></span></label>
  <!-- <a class="contact_sp fancybox" href="images/txz1.jpg" rel="external nofollow" rel="external nofollow" >如圖示</a> -->
</div>
</form>

/*调用写好的方法进行验证*/
$new_thumb = fab_upload($_FILES);
// var_dump($new_thumb);die;
$input['data']['addtime']=time();//生成申请时间
$input['data']['pretime']=strtotime($input['data']['pretime']);//将传过来的日期转换成时间戳
if($new_thumb && count($new_thumb) > 0){
    $input['data'] = array_merge($input['data'],$new_thumb);
}
$f = $customer->add($input['data']);
if($f){
    $this->display('Index/infosuccess');
    // $this->success("添加成功！",U('Index/infocheck',array('iccid'=>$input['data']['iccid'])));
}else{//数据添加失败即删除照片
    if($new_thumb){
      $p = C('UNLINK_PATH').$new_thumb;
      unlink($p);
    }
    $this->error("添加失败！证件可能已存在");
}

<?php
return array(
  'DB_TYPE'  => 'mysql', // 数据库类型
  'DB_HOST'  => 'localhost', // 服务器地址
  'DB_NAME'  => 'urban', // 数据库名
  'DB_USER'  => 'root', // 用户名
  'DB_PWD'  => '123456', // 密码
  'DB_PORT'  => 3306, // 端口
  'DB_PREFIX' => 'fab_', // 数据库表前缀
  'DB_CHARSET'=> 'utf8', // 字符集
  'CHECK_ROOT' => true, //开启rbac权限
  'TMPL_CACHE_ON' => false,    // 是否开启模板编译缓存,设为false则每次都会重新编译
  'ACTION_CACHE_ON' => false, // 默认关闭Action 缓存
  'HTML_CACHE_ON'  => false,  // 默认关闭静态缓存
  'FILE_PATH'=>'http://localhost/urban/Uploads/',
  'WEB_PATH'  =>  'http://localhost/urban/index.php/',
  'WEB_URL'  =>  'http://localhost/urban/',
  'UNLINK_PATH'  =>  './Uploads/',
  'PWD_KEY'  => 'jeiskAsdlLsdfqaiocvwphxzbtu',
  'AUTO_LOGIN_TIME'=>3600 * 24 * 7,
  'SHOW_PAGE_TRACE'=>true, //追踪模式
  'MY_CATCH_DIR' =>'./cache/', //缓存目录
  'CODE_PATH' =>'http://localhost/urban/fabp/phpqrcode/',  // 存放二维码的目录
  'qq_face' =>'http://localhost/urban/Public/site/images/arclist/',   //qq表情路径
  'wxlogin' => array(
    'appid' => 'wx35f5b9e9b90539ae',
    'AppSecret' => '4de424bee1529a8abeda9c0c52aad3aa',
    'callback' => 'http://localhost/urban/index.php/Home/Login/call_back.html'
    ),
  'topic_pass'=>false,  //是否开启话题审核
);

if(IS_POST){
    $input=I('post.');
    $ids=implode(',',$input['id']);
    $brand=D('brand');
    $img=$brand->where("brand_id in ($ids)")->getField('thumb',true);
    foreach($img as $v){
      $p = C('UNLINK_PATH').$v;
      unlink($p);
    }
    $res=$brand->where("brand_id in ($ids)")->delete();
    if($res){
      $this->success("删除运营商品牌成功！");
    }else{
      $this->error("删除运营商品牌失败!");
    }
}

<foreach name="list" item="v">
  <tr>
    <td class="center" width="80px">
      <label>
        <input type="checkbox" class="ace" name="id[]" value="{$v.brand_id}"/>
        <span class="lbl"></span>
      </label>
    </td>
    <td>{$v.brand_name}</td>
  </tr>
</foreach>
<tr>
    <td colspan="2">
      <button class="btn btn-xs btn-danger" onclick="return tijiao('del')">
        <i class="icon-trash bigger-110"></i>
        删除
      </button>
     </td>
  </tr>

<script type="text/javascript">
function tijiao(type){
  if(type == 'del'){
    $('#my_form').attr('action',"{:U('Admin/Brand/brand_del')}");
  }else if(type == 'sort'){
    $('#my_form').attr('action',"{:U('Admin/Brand/brand_sort')}");
  }
  return true;
}
</script>

$_FILES['input_name']['size']