diff --git "a/\346\235\250\351\221\253\344\273\252/20220522-php\344\270\212\344\274\240\346\226\207\344\273\266.md" "b/\346\235\250\351\221\253\344\273\252/20220522-php\344\270\212\344\274\240\346\226\207\344\273\266.md"
new file mode 100644
index 0000000000000000000000000000000000000000..860a56a8e1d13a95771b0580aa810d2aeb114e90
--- /dev/null
+++ "b/\346\235\250\351\221\253\344\273\252/20220522-php\344\270\212\344\274\240\346\226\207\344\273\266.md"
@@ -0,0 +1,44 @@
+```php
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>上传文件</title>
+</head>
+<body>
+<form action="demo.php" method="post" enctype="multipart/form-data">
+    请选择你要上传的文件：<input type="file" name="files">
+    <br>
+    <input type="submit" value="上传">
+</form>
+
+</body>
+</html>
+
+
+//实现一个文件上传，限制只能上传pdf和word格式，大小为1M以内。
+$error=$_FILES['file1']['error'];
+if ($error==0) {
+    define("daxiao", 1024 * 1024);
+    $size=$_FILES['file1']['size'];
+    if ($size >daxiao) {
+        echo "文件上传太大";
+    } else {
+        echo "允许上传文件的大小";
+        $arr = array("pdf", "docx");
+        $name = $_FILES['file1']['name'];
+        $namearr = explode(".",$name);
+        $lname = end($namearr);
+        $result = in_array($lname,$arr);
+        if (!$result) {
+            echo "不符合上传文件类型";
+        } else {
+            echo "符合上传文件类型";
+
+        }
+
+    }
+}else{
+    echo "上传失败";
+}
+
