diff --git "a/\346\226\271\347\220\274/20220522-php\344\270\212\344\274\240\346\226\207\344\273\266\344\275\234\344\270\232.md" "b/\346\226\271\347\220\274/20220522-php\344\270\212\344\274\240\346\226\207\344\273\266\344\275\234\344\270\232.md"
new file mode 100644
index 0000000000000000000000000000000000000000..536ca07f3b5a87c862958358af0e105786567257
--- /dev/null
+++ "b/\346\226\271\347\220\274/20220522-php\344\270\212\344\274\240\346\226\207\344\273\266\344\275\234\344\270\232.md"
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>实现一个上传文件，仅限制pdf和word模式，大小不超过1m</title>
+</head>
+<body>
+<form action="demo1.php" method="post" enctype="multipart/form-data">
+请输入你要上传的文件：<input type="file" name="file1">
+    <br>
+  <input type="submit" value="提交" name="submit">
+</form>
+</body>
+</html>
+
+
+
+
+```php
+<?php
+$error =$_FILES['file1']['error'];
+if ($error==0){
+    define("SIZE",1024*1024);
+    $size=$_FILES['file1']['size'];
+    if ($size>SIZE){
+        echo "上传文件太大了！";
+    }else{
+        echo "可以上传！";
+        $array =array("pdf","word");
+        $name=$_FILES["file1"]['name'];
+        $nameArr=explode(".",$name);
+        $lastname=$nameArr[count($nameArr)-1];
+        $result=array_search($lastname,$array);
+        if ($result==false){
+            echo "不允许上传的类型";
+
+        }else{
+            echo "允许上传的类型";
+        }
+    }
+
+}
+```
\ No newline at end of file
