实例
<meta charset="utf-8"> <?php //目录遍历的操作 $dirarray=(scandir('../php')); //print_r($dirarray); foreach($dirarray as $file) { if($file != '.'&&$file !='..'){ echo $file,'<br>' ; } } ?>
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实例
<meta charset="utf-8"> <form action="<?php echo htmlspecialchars($_SERVER['PHP_SELF'])?>" enctype="multipart/form-data" method="post"> <input type="hidden" name="MAX_FILE_SIZE" value="512351"> <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 //上传文件到服务器上面 if($_SERVER['REQUEST_METHOD']==['POST']) { if(isset($_FILES['upload'])){ $allow=['image/jpg','image/jpeg','image/png']; if(in_array($_FILES['upload'],['type'])){ if(move_uploaded_file($_FILES['upload']['tmp_name'],"upload/{$_FILES['upload']['name']}")){ echo "<script>alert('文件上传成功')</script>"; } } }else{ echo "<script>alert('文件上传格式不对')</script>"; } } 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>'; 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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