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PODynamically adding javascript to <head>
 

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  1. PODynamically adding javascript to <head>
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    <p>I am using a function "loadScript" to insert an external .js if the browser detects it is online.</p> <pre><code>&lt;script type="text/javascript"&gt; function loadScript() { if (navigator.onLine == true) { var src = "js/getdata.js"; var script = document.createElement("script"); script.type = "text/javascript"; script.src = src; document.getElementsByTagName("head")[0].appendChild(script); } } &lt;/script&gt; </code></pre> <p>It all works fine except that the final script appears as...</p> <pre><code>&lt;script type="text/javascript" src="js/getdata.js"&gt; function getData() // get MySQL data from db { &lt;?php $dbopen = 0; // database flag $con = mysql_connect("website.co.uk","guest","password"); mysql_select_db("DB", $con); if (!$con) {die('Could not connect: ' . mysql_error());} else {$dbopen = 1;} ?&gt; </code></pre> <p>etc...</p> <p>And the Firebug console tells me the function getData is not defined and the content </p> <pre><code>&lt;?php </code></pre> <p>is a syntax error...</p> <p>I would like to get the script into the head and have it defined as a usable function within the DOM.</p> <p>I would appreciate any thoughts you may have.</p> <p>GitaarLAB asked for the whole code, so here it is.</p> <pre><code>&lt;html&gt; &lt;head&gt; &lt;script type="text/javascript"&gt; function loadScript() { if (navigator.onLine == true) { var src = "js/getdata.js"; var script = document.createElement("script"); script.type = "text/javascript"; script.src = src; document.getElementsByTagName("head")[0].appendChild(script); } } &lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;script type="text/javascript"&gt; loadScript(); &lt;/script&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>The output is...</p> <pre><code>&lt;script type="text/javascript" src="js/getdata.js"&gt; function getData() { &lt;?php $hhgopen = 0; $con = mysql_connect("website.co.uk","guest","password"); mysql_select_db("ThisDB", $con); if (!$con) { die('Could not connect: ' . mysql_error()); } else { $result = mysql_query("SELECT * FROM articles", $con); $numrows = mysql_num_rows($result); $hhgopen = 1; } ?&gt; } &lt;/script&gt; </code></pre>
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    1. USTJS101
    1. USTJS101
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      1. VTDownMod
    1. COYou can't mix inline and included javascript. Include js/getdata.js in one script tag and then the PHP output in another script tag
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      1. USthefrontender
    2. COyour script should be defined in pair tag <script type="text/javascript" src="js/getdata.js"></script>
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      1. USLukas Greso
    3. COYou say: *'...works fine except that the final script appears as... CODE'*. This *can NOT* be happening. Executing `loadScript` in a browser can never ever render the resulting CODE you have posted: it should render `<script src="js/getdata.js" type="text/javascript"></script>`. Proof in [this fiddle](http://jsfiddle.net/xAQCY/).    Something else must be wrong (*very strange*, since it is a mystery where `<script type="text/javascript" src="js/getdata.js">` *without* the closing script-tag comes from), so we need more code (especially surrounding the parts you already posted).
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      1. USGitaarLAB
 

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