PHP随机播放功能不工作的刷新在IE8和Chrome

Question

我使用下面的PHP随机播放功能代码，以显示图像的列表：

<?php 
$images = array(); 
$images['image1'] = array("id" => "sales1", "href" => "#salesperson1", "src" => "salesteam/salesteam-jessie.png"); 
$images['image2'] = array("id" => "sales2", "href" => "#salesperson2", "src" => "salesteam/salesteam-anthony.png"); 
$images['image3'] = array("id" => "sales3", "href" => "#salesperson3", "src" => "salesteam/salesteam-nicole1.png"); 
$images['image4'] = array("id" => "sales4", "href" => "#salesperson4", "src" => "salesteam/salesteam-kevin.png"); 
$images['image5'] = array("id" => "sales5", "href" => "#salesperson5", "src" => "salesteam/salesteam-christi.png"); 
$images['image6'] = array("id" => "sales6", "href" => "#salesperson6", "src" => "salesteam/salesteam-thomas.png"); 
$images['image7'] = array("id" => "sales7", "href" => "#salesperson7", "src" => "salesteam/salesteam-melissa.png"); 
$images['image8'] = array("id" => "sales8", "href" => "#salesperson8", "src" => "salesteam/salesteam-nicole2.png"); 
shuffle($images); 
foreach ($images as $singleimage) { 
$singleid = $singleimage['id']; 
$singlehref = $singleimage['href']; 
$singlesrc = $singleimage['src']; 
echo "<li><a id=\"$singleid\" href=\"$singlehref\"><img src=\"$singlesrc\" /></a></li>"; 
} 
?> 

在任何IE8或Chrome打刷新时它不工作。它在Firefox中工作得很好。这是缓存问题吗？

Answer 1

你可以通过http迫使无缓存头

<?PHP 
header('Expires: Sat, 26 Jul 1997 05:00:00 GMT'); 
header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT'); 
header('Cache-Control: no-store, no-cache, must-revalidate'); 
header('Cache-Control: post-check=0, pre-check=0', false); 
header('Pragma: no-cache'); 

Answer 2

这是从缓存中，你应该SRC $ imagesrc使用。 '？'。兰特（0999）

echo "<li><a id=\"$singleid\" href=\"$singlehref\"><img src=\"$singlesrc?".rand(0,999)."\" /></a></li>";