I am using youtube video in "iframe" with height width src etc. but it is playing auto. I want to play it with onclick. Please help me.
To disable autoplay, just put &autoplay=0 after the video ID so it looks like this:
<object width="425" height="350">
<param name="movie" value="http://www.youtube.com/v/OdT9z-JjtJk&autoplay=0"></param>
<embed src="http://www.youtube.com/v/OdT9z-JjtJk&autoplay=0" type="application/x-shockwave-flash" width="425" height="350"></embed>
</object>
http://support.google.com/youtube/bin/answer.py?hl=en&answer=1181821
Updated code.
It used to work. YouTube only verifies how to autoplay but they dont talk aboth NOT autoplay.
&autoplay=0 does not work.
http://support.google.com/youtube/bin/answer.py?hl=en&answer=171780&rd=1
Jut put the "#t=XmXs" after the URL. NOTICE that you have to change the X to a certain time, such as 2m30s.
Add &autoplay=0 to the video URL.
With a code like this:
<iframe width="680" height="382" frameborder="0" src="//www.youtube.com/embed/n4K1Qpj1Ljg?list=UU3qGUTKOSIKbp08itEn8VIA?autoplay=0">
</iframe>
Instead of using &autoplay=false, try using ?autoplay=false regardless of whether there is a preceding ?rel=n.
This seems to be working for me after getting it by trial and error.
来源：https://stackoverflow.com/questions/10861987/stop-youtube-video-autoplay