批改状态:合格
老师批语:
| 序号 | 配置项 | 默认值 | 描述 |
|---|---|---|---|
| 1 | file_uploads |
On |
使 PHP 支持文件上传 |
| 2 | upload_tmp_dir |
/tmp |
指示应该临时把上传的文件存储在什么位置 |
| 3 | max_file_uploads |
20 |
单次请求时允许上传的最大文件数量 |
| 4 | max_execution_time |
30 |
设置脚本被解析器终止之前PHP最长执行时间(秒) ,防止服务器资源被耗尽 |
| 5 | max_input_time |
60 |
设置 PHP 通过 POST/GET/PUT 解析接收数据的时长(秒) |
| 6 | memory_limit |
128M |
系统分配给当前脚本执行可用的最大内存容量 |
| 7 | post_max_size |
8M |
允许的 POST 数据的总大小 |
| 8 | upload_max_filesize |
32M |
允许的尽可能最大的文件上传 |
<?phpprintf('<pre>%s</pre>',print_r($_FILES,true));$tmpFileName = $_FILES['my_pic']['tmp_name'];$originalFileName = $_FILES['my_pic']['name'];if(is_uploaded_file($tmpFileName))echo "{$originalFileName}:上传方式合法";?><!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>文件上传变量$_FILES</title></head><body><!-- <form action="" method="post" enctype="application/x-www-form-urlencoded"> --><form action="" method="post" enctype="multipart/form-data"><fieldset><legend>单文件上传</legend><input type="file" name="my_pic"><button>上传</button></fieldset></form></body></html>
文件上传错误信息描述
| 序号 | 常量 | 值 | 描述 |
|---|---|---|---|
| 1 | UPLOAD_ERR_OK |
0 |
没有错误发生,文件上传成功 |
| 2 | UPLOAD_ERR_INI_SIZE |
1 |
文件超过php.ini中upload_max_filesize值 |
| 3 | UPLOAD_ERR_FORM_SIZE |
2 |
文件大小超过表单中MAX_FILE_SIZE指定的值 |
| 4 | UPLOAD_ERR_PARTIAL |
3 |
文件只有部分被上传 |
| 5 | UPLOAD_ERR_NO_FILE |
4 |
没有文件被上传 |
| 6 | UPLOAD_ERR_NO_TMP_DIR |
6 |
找不到临时文件夹 |
| 7 | UPLOAD_ERR_CANT_WRITE |
7 |
文件写入失败 |
<?phpprintf('<pre>%s</pre>',print_r($_FILES,true));$errorCode = $_FILES['my_pic']['error'];if($errorCode ===4 ) echo '没有文件上传';//两种方式检查//if(empty($_FILES['my_pic']['name'])) echo '没有文件传';?><!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>文件上传变量$_FILES</title></head><body><!-- <form action="" method="post" enctype="application/x-www-form-urlencoded"> --><form action="" method="post" enctype="multipart/form-data"><fieldset><legend>单文件上传</legend><input type="file" name="my_pic"><button>上传</button></fieldset></form></body></html>
<?php//$_FILES;printf('<pre>%s</pre>',print_r($_FILES,true));$fileType = $_FILES['my_pic']['type'];echo $fileType,'<br>';//print_r(explode('/',$fileType)[0]);echo strstr($fileType,'/',true);echo '<br>';$allow = ['jpg','jpeg','png','wbmp','gif'];$extension = pathinfo($_FILES['my_pic']['name'])['extension'];echo $extension;if(!in_array($extension,$allow)){echo '文件类型不正确';}else{echo '合法的文件类型';}//if(strstr($fileType,'/',true) !== 'image')//echo '<p>文件类型错误</p>';?><!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>文件上传变量$_FILES</title></head><body><hr><!-- <form action="" method="post" enctype="application/x-www-form-urlencoded"> --><form action="" method="post" enctype="multipart/form-data"><fieldset><legend>单文件上传:检测文件类型</legend><input type="file" name="my_pic"><button>上传</button></fieldset></form></body></html>
<?phpprintf('<pre>%s</pre>',print_r($_FILES,true));echo ini_get('upload_max_filesize');ini_set('upload_max_filesize','5M');?><!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>文件上传变量$_FILES</title></head><body><!-- <form action="" method="post" enctype="application/x-www-form-urlencoded"> --><form action="" method="post" enctype="multipart/form-data"><fieldset><legend>单文件上传</legend><input type="hidden" name="MAX_FILE_SIZE" value="5524880"><input type="file" name="my_pic"><button>上传</button></fieldset></form></body></html>
<?phpprintf('<pre>%s</pre>',print_r($_FILES,true));foreach ($_FILES as $file) {if($file['error'] == 0){$destFile = 'upload/'.$file['name'];move_uploaded_file($file['tmp_name'],$destFile);echo "<img src='{$destFile}' width ='150'>";}}?><!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>文件上传变量$_FILES</title></head><body><!-- <form action="" method="post" enctype="application/x-www-form-urlencoded"> --><form action="" method="post" enctype="multipart/form-data"><fieldset><legend>多文件上传:逐个上传</legend><input type="hidden" name="MAX_FILE_SIZE" value="5524880"><input type="file" name="my_pic1"><input type="file" name="my_pic2"><input type="file" name="my_pic3"><button>上传</button></fieldset></form></body></html>
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