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POPHP/Ajax Polling Progress
 

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  1. POPHP/Ajax Polling Progress
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    <p>I am attempting to implement a live polling of a php script loop with no luck thus far in my attempts. Here is what I have thus far:</p> <p>On form submit:</p> <pre><code>$.ajax({ data: $(this).serialize(), success: showResponse, url: 'process.php', type: 'post' }); function showResponse(){ $.ajax({ type: "GET", url: "progress.php", cache: false, success: function(data) { var response = $.parseJSON(data); if (response.processing === true) { console.log("Current Item: " + response.currentItem + "Total Items: " + response.totalItems + "Percent Complete: " + response.percentComplete); setTimeout(checkProgress, 1000); }); } </code></pre> <p>In the process.php script:</p> <pre><code>session_start(); echo json_encode(array("processing" =&gt; true)); $totalItems = 10000000; $_SESSION['totalItems'] = $totalItems; $_SESSION['processing'] = true; $_SESSION['error'] = false; for ($i=0; $i &lt;= $totalItems; $i++) { $_SESSION['currentItem'] = $i; $_SESSION['percentComplete'] = round(($i / $totalItems * 100)); } </code></pre> <p>In the progress php script:</p> <pre><code>session_start(); echo json_encode(array( "processing" =&gt; $_SESSION['processing'], "error" =&gt; $_SESSION['error'], "currentItem" =&gt; $_SESSION['currentItem'], "totalItems" =&gt; $_SESSION['totalItems'], "percentComplete" =&gt; $_SESSION['percentComplete'] ) ); </code></pre> <p>Not sure where I am going wrong here but all it does is loop once it hits 100% complete. Any suggestions would be greatly appreciated!</p> <p><em>EDIT</em> I changed the above to using apc in the process.php:</p> <pre><code>apc_store('totalItems', $totalItems); apc_store('processing', true); apc_store('error', false); apc_store('currentItem', $i); apc_store('percentComplete', round(($i / $totalItems * 100))); </code></pre> <p>And within the progress.php:</p> <pre><code>echo json_encode(array( "processing" =&gt; apc_fetch('processing'), "error" =&gt; apc_fetch('error'), "currentItem" =&gt; apc_fetch('currentItem'), "totalItems" =&gt; apc_fetch('totalItems'), "percentComplete" =&gt; apc_fetch('percentComplete') ) ); </code></pre> <p>Still doesn't work properly the way I am wanting it to work, am I doing something incorrectly? It only shows false values until the script completes and shows 100% just like the session use was doing before. Any ideas?</p>
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