创建后台逻辑层logic,创建file的逻辑文件FileManager.php,开发根据文件拓展名判断文件类型方法

backend/config/main.php

@@ -34,6 +34,16 @@ return [
                     'class' => 'yii\log\FileTarget',
                     'levels' => ['error', 'warning'],
                 ],
+                [
+                    'class' => 'yii\log\FileTarget',
+                    'levels' => ['info', 'error'],
+                    'categories' => ['imagetest'],
+                    'logFile' => '@app/runtime/logs/imagetest.log',
+                    'logVars' => [],
+                    'exportInterval' => 1,
+                    'prefix' => function ($message) {
+                    }
+                ],
             ],
         ],
         'errorHandler' => [
@@ -45,6 +55,7 @@ return [
             'rules' => [
             ],
         ],
+        'file' => ['class' => 'backend\logic\file\FileManager'],
     ],
     'params' => $params,
 ];

backend/logic/file/FileManager.php

@@ -0,0 +1,44 @@
+<?php
+
+
+namespace backend\logic\file;
+
+use common\models\ars\TemFile;
+
+class FileManager
+{
+    public static $extension = [
+        TemFile::TYPE_IMAGE => ['jpg', 'png', 'jpeg'],
+        TemFile::TYPE_VIDEO => ['mp4'],
+        TemFile::TYPE_EXCEL => [],
+        TemFile::TYPE_WORD => ['docx'],
+        TemFile::TYPE_TXT => ['txt'],
+    ];
+
+    /**
+     * @param $array
+     * @param $value
+     * @param int $key
+     * @return int
+     * 查看$extension数组中是否存在文件类型，不存在则返回-1
+     */
+    public function searchKey($array,$value, $key=-1){
+        foreach($array as $k=>$row){
+            if(!is_array($row)){
+                if($row == $value){
+                    if($key != -1) {
+                        return $key;
+                    }else{
+                        return -1;
+                    }
+                }
+            }else{
+                $r = self::searchKey($row,$value, $k);
+                if($r != -1){
+                    return $r;
+                }
+            }
+        }
+        return -1;
+    }
+}

common/models/ars/TemFile.php

@@ -19,6 +19,13 @@ use yii\behaviors\TimestampBehavior;
  */
 class TemFile extends \yii\db\ActiveRecord
 {
+    //类型type
+    const TYPE_IMAGE = 1;//图片
+    const TYPE_VIDEO = 2;//影视
+    const TYPE_EXCEL = 3;//excel表单
+    const TYPE_WORD = 4;//word文本
+    const TYPE_TXT = 5;//txt文本
+
     /**
      * {@inheritdoc}
      */