将javascript转换为PHP函数
问题描述:
我想将此javascript(可正常工作)转换为PHP函数,以便所有代码不必出现在网页的源代码中。将javascript转换为PHP函数
<script type="text/javascript">
var images = [],
index = 0;
images[0] = "<a href = 'http://www.random_target1.com' target='_blank'><img src='//www.random_target1.com/random_banner.jpg' width='120' /></a>";
images[1] = "<a href = 'http://www.random_target2.com' target='_blank'><img src='//www.random_target2.com/random_banner.jpg' width='120' /></a>";
images[2] = "<a href = 'http://www.random_target3.com' target='_blank'><img src='//www.random_target3.com/random_banner.jpg' width='120' /></a>";
index = Math.floor(Math.random() * images.length);
document.write(images[index]);
</script>
我试图在PHP文件这个PHP函数,并认为我可以调用它的结果,从HTML文件,因此,只有确定值将出现在HTML源代码。不过,这段代码打破了页面。
public function getRandom()
{
$images = array();
$index = 0;
$images[0] = "<a href = 'http://www.random_target1.com' target='_blank'><img src='//www.random_target1.com/random_banner.jpg' width='120' /></a>";
$images[1] = "<a href = 'http://www.random_target2.com' target='_blank'><img src='//www.random_target2.com/random_banner.jpg' width='120' /></a>";
$images[2] = "<a href = 'http://www.random_target3.com' target='_blank'><img src='//www.random_target3.com/random_banner.jpg' width='120' /></a>";
$index = Math.floor(Math.random() * $images.length);
return $images[$index];
}
答
$images = array(
"<a href = 'http://www.random_target1.com' target='_blank'><img src='//www.random_target1.com/random_banner.jpg' width='120' /></a>",
"<a href = 'http://www.random_target1.com' target='_blank'><img src='//www.random_target1.com/random_banner.jpg' width='120' /></a>",
"<a href = 'http://www.random_target1.com' target='_blank'><img src='//www.random_target1.com/random_banner.jpg' width='120' /></a>"
);
$index = rand(0, count($images)-1);
echo $images[$index];
答
注意我用mt_rand代替兰特。它通常被认为是一个更好的随机数函数。
<?php
$images = array();
$images[0] = "<a href = 'http://www.random_target1.com' target='_blank'><img src='//www.random_target1.com/random_banner.jpg' width='120' /></a>";
$images[1] = "<a href = 'http://www.random_target2.com' target='_blank'><img src='//www.random_target2.com/random_banner.jpg' width='120' /></a>";
$images[2] = "<a href = 'http://www.random_target3.com' target='_blank'><img src='//www.random_target3.com/random_banner.jpg' width='120' /></a>";
$randIndex = mt_rand(0,sizeof($images)-1);
echo $images[$randIndex];
?>
你有没有尝试过自己? – xbonez 2012-01-09 09:36:39
无论您是将JavaScript作为JavaScript还是PHP,它最终都会在网页中成为源代码的一部分。根据您的要求,如果您想阻止此代码出现在客户端页面网页上,则需要重新设计您的应用程序。 – 2012-01-09 09:38:37
发布我试过的东西,下面是 – user1002456 2012-01-09 09:53:13