javascript-php page Jump

This will normally jump:

echo "";

and the following code server returned a blank page, did not execute my command, ask what is the matter? PHP small white, divert write code:

echo "";    

Reply content:

This will normally jump:

echo "";

and the following code server returned a blank page, did not execute my command, ask what is the matter? PHP small white, divert write code:

echo "";    

SetTimeout (func,5);
The front func is a method

echo "";

The upstairs guy is right.

你js部分只是定义了函数没有调用啊

