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    <p>Since you asked this in a comment:</p> <blockquote> <p>Well, I've got a database of videos with a unique ID. I have 2 buttons next to each video for either liking or disliking. The 2 buttons will have an id based on the ID of the video. For example video number 2 has 2 buttons: like(id=L2) and dislike(id=D2). When the user clicks either one of those buttons, I want to update the videos table's "likes" column without the page reloading. Would that be possible?</p> </blockquote> <p>I'll tell you a way to achieve it, and it doesn't even require Javascript! :) (at least at first).</p> <p>It's an old fashioned HTML form element. Since you'll be posting data you should use action post. The code can look like this:</p> <pre><code>&lt;form method="post" action="/requests/like-video/" class="like-video"&gt; &lt;div&gt; &lt;input type="hidden" name="video_id" value="&lt;?php echo $video-&gt;id ?&gt;"&gt; &lt;input type="submit" value="Like"&gt; &lt;/div&gt; &lt;/form&gt; &lt;form method="post" action="/requests/dislike-video/" class="dislike-video"&gt; &lt;div&gt; &lt;input type="hidden" name="video_id" value="&lt;?php echo $video-&gt;id ?&gt;"&gt; &lt;input type="submit" value="Dislike"&gt; &lt;/div&gt; &lt;/form&gt; </code></pre> <p>Once you have that in place (and working) it's just a matter of hijaxing those forms. A super easy way of doing that is to use jQuery's Form plugin and simply run:</p> <pre><code>$('form.like-video').ajaxForm(OPTIONS_GO_HERE); $('form.dislike-video').ajaxForm(OPTIONS_GO_HERE); </code></pre> <p>Doing it this way ensures users without JS also get a fully functional site.</p> <p>It's called progressive enhancement.</p>
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    1. POpassing variable to PHP through javascript
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    1. USpowerbuoy
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    1. COSo will this stop the page from reloading?
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    2. COWithout JS (and ajax) it's impossible to submit data to the server without refreshing the page, that's what the last two lines of jQuery code are for. The nice thing about doing it this way is that it works regardless if the user has JS or not and you don't have to invent your own method for data submission but instead use what has worked for years (a simple HTML <form>)
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