JS POST 到PHP。

Question

<script>var images = document.getElementsByClassName("c1");var imageStr = "";for(var i=0;i<images.length;i++){   imageStr+=images[i].src+'_';}alert(imageStr);</script>如何设定一个按钮，点击后post imageStr里面的数组到PHP$imageStr = "http://127.0.0.1/down/123.gif__http://127.0.0.1/down/8095680852_893f685cbd_q.jpg__http://127.0.0.1/down/8018953043_c6ef9e3b29_q.jpg__";