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目录的遍历以及上传文件只服务器与检测
if柚的博客
Original
592 people have browsed it

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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Correction status:qualified

Teacher's comments:加点自己的总结就更好啦!
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