Correction status:Uncorrected
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//编程: 目录遍历
//编程: 文件上传与检测
<?php // //编程: 目录遍历 //编程: 文件上传与检测 $dir=opendir('../') or die('找不到目录'); while(false!=readdir($dir)){ if (readdir($dir) != "." && readdir($dir) != "..") { print readdir($dir).'<br>'; }} closedir($dir); echo '<hr>'; $dir1 = scandir('../'); print_r($dir1); echo '<hr>'; foreach($dir1 as $value){ echo $value,'<br>'; }; echo '<hr>'; echo dirname(__FILE__); echo '<hr>'; ?> <form action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']); ?>" method="POST" enctype="multipart/form-data"> <!-- 用隐藏域设置允许上传的文件大小,仅考参考 --> <input type="hidden" name="MAX_FILE_SIZE" value="542488"> <fieldset> <legend align="center">文件上传</legend> <p><strong>选择文件:</strong><input type="file" name="upload"></p> </fieldset> <p align="center"><button type="submit" name="submit" >上传</button></p> </form> <?php //检测请求类型是否POST,如果不是应该提示用户类型不对 if ($_SERVER['REQUEST_METHOD'] == 'POST') { //检测是否有文件被上传 if (isset($_FILES['upload'])) { //设置允许上传的文件类型 $allow = ['image/jpg','image/jpeg', 'image/png']; if (in_array($_FILES['upload']['type'], $allow)) { //将文件先移动到临时目录 if (move_uploaded_file($_FILES['upload']['tmp_name'], "upload/{$_FILES['upload']['name']}")){ //上传成功 echo "<script>alert('文件上传成功')</script>"; } }else { //提示格式不对 echo "<script>alert('仅允许上传jpg和png格式的图片')</script>"; } } //对上传错误进行处理 if ($_FILES['upload']['error'] > 0 ) { echo '<p>错误原因是:<strong>'; switch ($_FILES['upload']['error']) { case 1: echo '文件超过了php.ini配置中设置的大小'; break; case 2: echo '文件超过了表单中常量设置的大小'; break; case 3: echo '仅有部分文件被上传'; break; case 4: echo '没有文件被上传'; break; case 6: echo '没有可用的临时文件夹'; break; case 7: echo '磁盘已满,写入失败'; break; case 8: echo '上传意外中止'; break; default: echo '系统未知错误'; break; } echo '</strong></p>'; <?php // //编程: 目录遍历 //编程: 文件上传与检测 $dir=opendir('../') or die('找不到目录'); while(false!=readdir($dir)){ if (readdir($dir) != "." && readdir($dir) != "..") { print readdir($dir).'<br>'; }} closedir($dir); echo '<hr>'; $dir1 = scandir('../'); print_r($dir1); echo '<hr>'; foreach($dir1 as $value){ echo $value,'<br>'; }; echo '<hr>'; echo dirname(__FILE__); echo '<hr>'; ?> <form action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']); ?>" method="POST" enctype="multipart/form-data"> <!-- 用隐藏域设置允许上传的文件大小,仅考参考 --> <input type="hidden" name="MAX_FILE_SIZE" value="542488"> <fieldset> <legend align="center">文件上传</legend> <p><strong>选择文件:</strong><input type="file" name="upload"></p> </fieldset> <p align="center"><button type="submit" name="submit" >上传</button></p> </form> <?php //检测请求类型是否POST,如果不是应该提示用户类型不对 if ($_SERVER['REQUEST_METHOD'] == 'POST') { //检测是否有文件被上传 if (isset($_FILES['upload'])) { //设置允许上传的文件类型 $allow = ['image/jpg','image/jpeg', 'image/png']; if (in_array($_FILES['upload']['type'], $allow)) { //将文件先移动到临时目录 if (move_uploaded_file($_FILES['upload']['tmp_name'], "upload/{$_FILES['upload']['name']}")){ //上传成功 echo "<script>alert('文件上传成功')</script>"; } }else { //提示格式不对 echo "<script>alert('仅允许上传jpg和png格式的图片')</script>"; } } //对上传错误进行处理 if ($_FILES['upload']['error'] > 0 ) { echo '<p>错误原因是:<strong>'; switch ($_FILES['upload']['error']) { case 1: echo '文件超过了php.ini配置中设置的大小'; break; case 2: echo '文件超过了表单中常量设置的大小'; break; case 3: echo '仅有部分文件被上传'; break; case 4: echo '没有文件被上传'; break; case 6: echo '没有可用的临时文件夹'; break; case 7: echo '磁盘已满,写入失败'; break; case 8: echo '上传意外中止'; break; default: echo '系统未知错误'; break; } echo '</strong></p>'; //临时文件删除 if (file_exists($_FILES['upload']['tmp_name']) && is_file($_FILES['upload']['tmp_name'])) { unlink($_FILES['upload']['tmp_name']); } } } else { echo '1'; } ?> if (file_exists($_FILES['upload']['tmp_name']) && is_file($_FILES['upload']['tmp_name'])) { unlink($_FILES['upload']['tmp_name']); } } } else { echo '1'; } ?>
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