js如何调用php方法参数

js调用php方法参数的方法：

第一种，直接URL编码 比较方便

JS:

<script type=”text/JavaScript”>
string = encodeURIComponent(string);
location.href = index.php?keyword=’+string;
</script>

php:

$keyword = (isset($_GET['keyword'])) ? $_GET['keyword'] : ”;

第二种，使用escape编码比较复杂 但兼任性似乎要好,通过ajax传递的时候可能需要

JS:

……..
$.getJSON(“admin.php?action=”+escape(action),function(json){
})
…………

PHP:

function unescape($str) { //定义unescape函数
$str = urldecode($str);
preg_match_all(“/(?:%u.{4}|&#x.;|&#d+;|.+)/U”,$str,$r);
$ar = $r[0];
foreach($ar as $k=>$v) {
if(substr($v,0,2) == “%u”)
$ar[$k] = iconv(“UCS-2BE”,”utf-8″,pack(“H4″,substr($v,-4)));
elseif(substr($v,0,3) == “&#x”)
$ar[$k] = iconv(“UCS-2BE”,”utf-8″,pack(“H4″,substr($v,3,-1)));
elseif(substr($v,0,2) == “&#”) {
$ar[$k] = iconv(“UCS-2BE”,”utf-8″,pack(“n”,substr($v,2,-1)));
}
}
return join(“”,$ar);
}
$action=unescape($_GET["action"]);