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POCorrect way to execute Javascript based on output from PHP
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  1. POCorrect way to execute Javascript based on output from PHP
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    copied!<p>I have a javascript function that takes information from a form and send it to my database. I would like to add a PHP Exception to it. Something like "if "whatever" execute the javascript function, else throw the Exception message". I'm kinda new to javascript and I don't know what is a good way to call a javascript function from a php file. </p> <p>Here's the code: </p> <p>index.php </p> <pre><code>&lt;?php /* Template Name: X */ get_header(); ?&gt; &lt;!DOCTYPE html&gt; &lt;html&gt; &lt;head&gt; &lt;meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /&gt; &lt;title&gt;X&lt;/title&gt; &lt;script src="jquery-1.10.2.min.js"&gt;&lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;div style="margin-top:30px;" align="center"&gt; &lt;form id="myForm" action="sendMessage.php" method="post"&gt; &lt;textarea style="resize:none" cols="80" rows="4" name="message" placeholder="Entrez votre message ici"&gt;&lt;/textarea&gt;&lt;br /&gt; &lt;button style="margin-top:2px; margin-bottom:10px;" id="sub"&gt;Envoyer&lt;/button&gt; &lt;/form&gt; &lt;/div&gt; &lt;script src="sendMessage.js"&gt;&lt;/script&gt; &lt;div id="output"&gt; &lt;/div&gt; &lt;/body&gt; &lt;/html&gt; &lt;?php get_footer(); ?&gt; </code></pre> <p>sendMessage.js </p> <pre><code>$("#sub").click( function() { $.post( $("#myForm").attr("action"), $("#myForm :input").serializeArray(), function(info) { $("#result").html(info); } ); clearInput(); clickSub(); }); $("#myForm").submit( function() { return false; }); function clickSub(){ $.ajax({ url: "showMessage.php", type: "POST", async: true, dataType: "html", success: function(data) { $('#output').html(data); } }); } </code></pre> <p>Basically what I'd like to do is to execute the javascript / ajax with a PHP condition.</p>
 

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