passing a variable with window.opener javascript

问题

In the first page I have

window.tmpstr = 'aaaaaa';
window.open ('second.php','_self',false);

in second.php

alert(window.opener.tmpstr)

This alerts 'undefined'. when I change '_self' to '_blank' it works. How can I pass the variable when I want the new window to open in the same window.

回答1:

You can't, not like that. By calling window.open using _self, you simply redirect the page to the second.php url.

Options you can use are :

• Adding it as a parameter using the hash tag (second.php#tmpstr=aaaaaa
• Using cookies (there is a nice jQuery cookie plugin)
• Moving your whole page into a iFrame (not recommended) and redirecting only the main frame.

来源：https://stackoverflow.com/questions/14147680/passing-a-variable-with-window-opener-javascript