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POReturning php variable with ajax form
 

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  1. POReturning php variable with ajax form
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    <p>What I need help with is to get the success to set the PHP variable, so that the #result div gets a value (not a JavaScript .html thing, I need it to set the PHP variable).</p> <p>Is this possible without setting a new URL with the PHP variable?</p> <p>In other words, can I send a JavaScript variable to PHP variable without doing this:<br> <a href="https://stackoverflow.com/questions/8191124/send-javascript-variable-to-php-variable">send javaScript variable to php variable</a></p> <p>HTML</p> <pre><code>&lt;div id="hidden_slidersize"&gt;&lt;/div&gt; &lt;script type="text/javascript"&gt; $(function(){ if ($('body').width() &gt;= 960) { var sizeOfSlider = 500; } else { var sizeOfSlider = ($('body').width())/2; } $('#hidden_slidersize').html('&lt;form id="dataform" method="post" name="hiddentrick_form" action="data.php"&gt;&lt;fieldset&gt;&lt;input id="hiddentrick" name="hiddentrick" type="hidden" value="' + sizeOfSlider + '" /&gt;&lt;input class="datasubmit" type="submit" value="senddata" /&gt;&lt;/fieldset&gt;&lt;/form&gt;'); }); &lt;/script&gt; &lt;div id="result"&gt;&lt;?php echo $sizeofslider ?&gt;&lt;/div&gt; </code></pre> <p>Form Javascript</p> <pre><code>$(document).ready(function() { $(document).on('submit', 'form#dataform', function () { $.ajax({ type: 'POST', url: 'data.php', data: $('#dataform').serialize(), dataType:'html', success: function(data) {alert(data);}, error: function(data) { //AJAX request not completed alert('error'); } }); return false; }); }); </code></pre> <p>Form php</p> <pre><code>&lt;?php if( isset($_POST) ){ $sizeofslider = $_POST['hiddentrick']; echo $sizeofslider; } ?&gt; </code></pre> <p><strong>UPDATE</strong></p> <p>It seems like I didn't explain clearly enough. What I need to do is to make a javascript variable into a php variable and then calculate with it.</p> <p>Here's the calculation that comes after:</p> <pre><code>&lt;?php $czes = array( 'sort_order' =&gt; 'desc', 'sort_column' =&gt; 'post_date', 'hierarchical' =&gt; 1, 'exclude' =&gt; '', 'include' =&gt; '', 'meta_key' =&gt; '', 'meta_value' =&gt; '', 'authors' =&gt; '', 'child_of' =&gt; 4, 'exclude_tree' =&gt; '', 'number' =&gt; '', 'offset' =&gt; 0, 'post_type' =&gt; 'page', 'post_status' =&gt; 'publish' ); $pages = get_pages($czes); foreach ($pages as $page) { ?&gt; &lt;?php $postmetapic1 = get_post_meta($page-&gt;ID, 'pic1', true); ?&gt; &lt;?php $postmetapic2 = get_post_meta($page-&gt;ID, 'pic2', true); ?&gt; &lt;?php $postmetapic3 = get_post_meta($page-&gt;ID, 'pic3', true); ?&gt; &lt;?php $holder_width_first=0; if (!empty($postmetapic1)) {$holder_width_first++;} if (!empty($postmetapic2)) {$holder_width_first++;} if (!empty($postmetapic3)) {$holder_width_first++;} $holder_width= $holder_width_first*$sizeofslider; ?&gt; &lt;div id="s_sli_hol_&lt;?php echo $page-&gt;ID ?&gt;" class='slider_holder small_slider_holder' style="width: &lt;?php echo $holder_width ?&gt;px"&gt;Here's the img-tags&lt;/div&gt; &lt;?php } ?&gt; </code></pre>
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    1. COif you want to set the result to php then you have to submit it
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      1. USSarathSprakash
    2. COYes, of course. My plan is to auto submit later on, but right now I still doesn't get the #result to show any content - which is not wierd, because the php is set when the page starts. I need to do some kind of refresh, I guess, but I don't want to change the seen url.
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      1. USRhyder
    3. COWhy do you need to send the data to php? You can only set the size of the slider with javascript.
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      1. USL105
 

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