在浏览器窗口中创建全屏幻灯片
在javascriptkit上找到了这两个优秀的代码
http://www.javascriptkit.com/javatutors/externalphp2.shtml
php生成图像文件数组,javascript / css / html运行show。
我编辑了css / html,以便图像填满窗口。这部分不是问题。
我希望php在每次运行时生成一个随机列表。好像是shuffle($ files);是答案(?),但无论我把它放在php文件中,它都无法正常工作。
<?
//PHP SCRIPT: getimages.php
Header("content-type: application/x-javascript");
//This function gets the file names of all images in the current directory
//and ouputs them as a JavaScript array
function returnimages($dirname=".") {
$pattern="(\.jpg$)|(\.png$)|(\.jpeg$)|(\.gif$)"; //valid image extensions
$files = array();
$curimage=0;
if($handle = opendir($dirname)) {
while(false !== ($file = readdir($handle))){
if(eregi($pattern, $file)){ //if this file is a valid image
//Output it as a JavaScript array element
echo 'galleryarray['.$curimage.']="'.$file .'";';
$curimage++;
}
}
closedir($handle);
}
return($files);
}
echo 'var galleryarray=new Array();'; //Define array in JavaScript
returnimages() //Output the array elements containing the image file names
?>
有人可以帮我洗一下生成的文件列表数组吗?
谢谢
HTML:
<script src="pics/getimages.php"></script>
<script type="text/javascript">
var curimg=0
function rotateimages(){
document.getElementById("slideshow").setAttribute("src", "pics/"+galleryarray[curimg])
curimg=(curimg<galleryarray.length-1)? curimg+1 : 0
}
window.onload=function(){
setInterval("rotateimages()", 5000)
}
</script>
<div>
<img id="slideshow" src="pics/animal_0001.jpg" />
</div>
原始php文件的输出:
var galleryarray=new Array();
galleryarray[0]="nature_0001.jpg";
galleryarray[1]="animal_0107.jpg";
galleryarray[2]="nature_0007.jpg";
galleryarray[3]="nature_0083.jpg";
galleryarray[4]="animal_0120.jpg";
galleryarray[5]="nature_0025.jpg";
galleryarray[6]="summertime.jpg";
galleryarray[7]="nature_0091.jpg";
galleryarray[8]="travel_0018.jpg";
galleryarray[9]="animal_0052.jpg";
galleryarray[10]="travel_0038.jpg";
galleryarray[11]="animal_0047.jpg";
galleryarray[12]="nature_0016.jpg";
galleryarray[13]="nature_0024.jpg";
galleryarray[14]="travel_0053.jpg";
修订版的输出:
var galleryarray = true;
处理:
答案 0 :(得分:0)
通过自己构建JS,你已经过度复杂了。试试json_encode:
<?php
function returnimages($dirname=".") {
$images = array();
$pattern="(\.jpg$)|(\.png$)|(\.jpeg$)|(\.gif$)"; //valid image extensions
if($handle = opendir($dirname)) {
while(false !== ($file = readdir($handle))){
if(eregi($pattern, $file)){ //if this file is a valid image
$images[] = $file;
}
}
closedir($handle);
}
return $images;
}
$images = returnimages();
shuffle($images);
Header("content-type: application/x-javascript");
echo 'var galleryarray = ' . json_encode( $images ) . ';';
?>
shuffle不会返回混洗数组,而是返回操作的状态(TRUE / FALSE)。