PHP Scandir返回额外的句点 [英] PHP Scandir returns extra periods

问题描述

因此，我试图构建一个脚本来扫描目录并返回随机图像以用作背景.

So I am trying to build a script that scans a directory and returns random images to be used as backgrounds.

php看起来像这样:

The php looks like this:

$dir = "views/img/bg/";
$dh  = opendir($dir);
while (false !== ($filename = readdir($dh))) {
    $files[] = $filename;
}

$random_key = array_rand($files, 1);

$random = $files[$random_key];

然后我只是使用一些简单的jquery将图像附加为背景:

Then I am just using some simple jquery to attach the images as backgrounds:

<script>
$(document).ready(function(){

    $("body").css( "background" , "url(http://'.$url_root.'/views/img/bg/'.$random.'), center center" );

});
</script>

一切正常，但背景文件夹中所有图像的数组似乎返回诸如."之类的东西.或".."，而不是偶尔使用图像名称.我不确定发生了什么-有什么想法吗?

Everything works fine but the array of all the images in the background folder seems to be returning stuff like '.' or '..' instead of image names every once in a while. Im not sure what is going on - any ideas?

推荐答案

'.和'..'返回当前目录和父目录.您可以过滤它们:

'.' and '..' are returned for current and parent directory. You can filter them:

while (false !== ($filename = readdir($dh))) {
    if ($filename != '.' && $filename != '..')    
        $files[] = $filename;
}

这篇关于PHP Scandir返回额外的句点的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！