jQuery：使用jQuery添加PHP [重复]

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                        <a href="/questions/13840429/what-is-the-difference-between-client-side-and-server-side-programming" dir="ltr">What is the difference between client-side and server-side programming?</a>
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            <div class="grid--cell mb0 mt8">Closed <span title="2019-06-02 10:07:11Z" class="relativetime">11 months ago</span>.</div>
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I have simple jQuery code where Im trying to like in PHP echo in jQuery to my website. But when I do it like this:

$( ".doc-list" ).html( "include 'documents.php';" );

My code echo it on site like:

include 'documents.php';

So my problem is when I make code like upwards jQuery echo it like plain text not like PHP and I need to include to my index.php documents.php when AJAX is done.

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