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Always reveal: xmlhttpisnotdefined

Source: Internet
Author: User
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Always prompt: xmlhttpisnotdefined description: on the page of creating a public chat room, after the user submits a speech, the speech is displayed in the public discussion area. Code submitted in the talk. php file: & nbsp; & lt; td & gt; & lt; inputtype = & quot; submit & quot; always prompted: xmlhttp is not defined
Description: on the public chat room page, after the user submits a speech, the speech is displayed in the public discussion area.
Submit code in the talk. php file:

It also includes:

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