php 动态加载JavaScript文件或者css文件

阿牛 · 发表于 2017-4-3 08:10:51

　　1. 动态加载JS文件
　　第一种方法：
　　test.php

<script language="JavaScript" src="test6.php?str=i love bainiangzi"></script>
<script>tester();</script>
　　test6.php

<?php
header('Content-Type: application/x-javascript; charset=UTF-8');
$str = $_GET["str"];
?>
// javascript document
alert('<?php echo $str; ?>');
function tester(string)
{
string ? alert(string) : alert('you call a function named tester');
}
　　第二种方法：
　　源于：http://www.phper.org.cn/?post=44
　　
test.php

<script>
function loadjs(url,callback){
var head = document.getElementsByTagName("head")[0];
var script = document.createElement('script');
script.onload = script.onreadystatechange = script.onerror = function (){
if (script && script.readyState && /^(?!(?:loaded|complete)$)/.test(script.readyState)) return;
script.onload = script.onreadystatechange = script.onerror = null;
script.src = '';
script.parentNode.removeChild(script);
script = null;
callback();
}
script.charset = "gb2312";
script.src = url;
try {
head.appendChild(script);
} catch (exp) {}
}
function loadmultijs(url,callback){
if(Object.prototype.toString.call(url)==='[object Array]'){//是否数组
this.suc = 0;//加载计数
this.len = url.length;//数组长度
var a = this;
for(var i = 0;i < url.length;i++){
loadjs(url,function(){ a.suc++; if(a.suc == a.len) try{callback();}catch(e){} });
}
}
else if(typeof(url) == 'string') loadjs(url,callback);
}
loadjs("test5.php?return=value",function(){ alert(value); tester(value); });
</script>
　　test5.php

var value="this is value.";
　　加载多JavaScript文件的实例：

var url = [
'ajax.php?ajax=1',
'functions.js'
];
loadmultijs(url,function(){ alert("加载完毕。"); /* 这里可以调用动态加载的JS文件的数据或方法 */ });
　　
2. 动态加载css文件

　　test.php

<style type="text/css" media="screen">@import "body.css";</style>
<style type="text/css" media="screen">@import "div.php?w=300&h=400";</style>
<link rel="stylesheet" type="text/css" href="fonts.php?s=24&c=red">
<body>
<div>
this document has a #e4e4e4 background, a 300px/400px div, and a arial/24px/red words.
</div>
</body>
　　div.php

<?php
// declare the output of the file as CSS
header('Content-type: text/css');
// include the script
//include('others.php');
$width = $_GET['w'];
$height = $_GET['h'];
?>
div{width:<?=$width?>px;height:<?=$height?>px;border:blue 1px solid;}

　　fonts.php

<?php
// declare the output of the file as CSS
header('Content-type: text/css');
// include the script
//include('others.php');
$size = $_GET['s'];
$color = $_GET['c'];
?>
body{font-family:arial;font-size:<?=$size?>px;color:<?=$color?>}
　　转载注明出处：
http://justcoding.iteye.com/blog/1017497

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