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问题描述
我想从文件夹中随机显示n张图片。目前,我正在使用此脚本来显示图像
<?php $ dir ='./images/gallery /'; foreach(glob($ dir。'*。jpg')as $ file){?> < div class =item>< img src =<?php = $ file;?>>< / div> <?php}?>我只需要10个(或n个)图像,这个图像太随机了。如何做到这一点?
解决方案shuffle()给定数组的元素按随机顺序排列:
<?php $ dir ='./images /画廊/'; function displayImgs($ dir,$ n = 10){ $ files = glob($ dir。'*。jpg'); shuffle($ files); $ files = array_slice($ files,0,$ n); foreach($ files为$ file){?> < div class =item>< img src =<?php = $ file;?>>< / div> <?php} }?>用法: displayImgs(/ dir / temp /路径,20);
I want to display random n number of images from a folder. Currently i am using this script to display images
<?php $dir = './images/gallery/'; foreach(glob($dir.'*.jpg') as $file) { ?> <div class="item"><img src="<?php=$file;?>"></div> <?php } ?>I want only 10 (or n number) images, that too randomly. How to do this?
解决方案The shuffle() method will put the elements of a given array in a random order:
<?php $dir = './images/gallery/'; function displayImgs($dir, $n=10){ $files = glob($dir.'*.jpg'); shuffle($files); $files = array_slice($files, 0, $n); foreach($files as $file) { ?> <div class="item"><img src="<?php=$file;?>"></div> <?php } } ?>Usage: displayImgs("/dir/temp/path", 20);
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PHP从目录中随机显示n张图像
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