js中过滤php特殊字符

function encodeHmtl(str) {//html转义

var s = "";

if (str.length == 0) return "";

s = str.replace(/&/g, ">");

s = s.replace(/</g, "<");

s = s.replace(/>/g, ">");

s = s.replace(/ /g, " ");

s = s.replace(/\'/g, "'");

s = s.replace(/\"/g, """);

s = s.replace(/\n/g, "<br>");

return s;

}

PS: 这个是目前想到的最笨的方法。抛砖引玉啦