From 55cabc0e237b61278e5eb38e64a6bfb9346e8346 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=8C=83=E9=9B=A8=E6=9A=84?= <2322677577@qq.com>
Date: Mon, 23 May 2022 00:02:36 +0800
Subject: [PATCH] wj

---
 .../20220519-\346\226\207\344\273\266.md"     | 45 +++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 "\350\214\203\351\233\250\346\232\204/20220519-\346\226\207\344\273\266.md"
diff --git "a/\350\214\203\351\233\250\346\232\204/20220519-\346\226\207\344\273\266.md" "b/\350\214\203\351\233\250\346\232\204/20220519-\346\226\207\344\273\266.md"
new file mode 100644
index 0000000..3fa5f5d
--- /dev/null
+++ "b/\350\214\203\351\233\250\346\232\204/20220519-\346\226\207\344\273\266.md"
@@ -0,0 +1,45 @@
+
+
+
+
+```php
+<?php
+    $wenj = $_FILES['file']['error'];//0
+    if ($wenj==0) {//判断文件是否上传成功
+        //判断文件格式
+        $arr = array("pdf", "docx");
+        $name = $_FILES['file']['name'];
+        $namearr = explode(".", $name);
+        $namebrr = $namearr[count($namearr) - 1];
+        $gs = array_search($namebrr, $arr);
+        if ($gs === false) {
+            echo "文件格式错误";
+        } else {
+            echo "文件格式正确";
+            define("size", 1024 * 1024);
+            $size = $_FILES['file']['size'];
+            if ($size > size) {
+                echo "上传的文件大小超过1Mb无法上传！";
+            } else {
+                echo "文件上传成功！";
+            }
+        }
+    }
+```
+
+```html
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Title</title>
+</head>
+<body>
+  <form action="wen" method="post" enctype="application/x-www-form-urlencoded"  >
+    <input type="file" name="wenjian">
+    <input type="submit" name="submit" value="提交">
+  </form>
+</body>
+</html>
+```
+
-- 
Gitee

