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POMultiple conditions queries with PDO
 

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    <p>I asked this question in <a href="http://codereview.stackexchange.com">http://codereview.stackexchange.com</a> and they wanted me to post it here. I couldn't get this code to work at all. I switched from regular mysql to pdo which is more safer. Could someone tell me what I'm missing here. I've been struggling with it for couple of day, and I could find exact answer when I first searched this site. </p> <pre><code> $input = $_POST['input']; $categories = $_POST['category']; $state = $_POST['state']; $zipcode = $_POST['zipcode']; $qq = $db-&gt;prepare(" SELECT * FROM classified ")or die(print_r($qq-&gt;errorInfo(), true)); /*** execute the prepared statement ***/ $qq-&gt;execute(); /*** echo number of columns ***/ $rows = $qq-&gt;fetch(PDO::FETCH_NUM); if ($rows&gt;0){ $query = (" SELECT * FROM classified "); $cond = array(); $params = array(); if (!empty($input)) { $cond[] = "title = ?"; $params[] = $input; } if (!empty($categories)) { $cond[] = "id_cat = ?"; $params[] = $categories; } if (!empty($state)) { $cond[] = "id_state = ?"; $params[] = $state; } if (!empty($zipcode)) { $cond[] = "zipcode = ?"; $params[] = $zipcode; } if (count($cond)) { $query .= ' WHERE ' . implode(' AND ', $cond)or die(print_r($query-&gt;errorInfo(),true)); } $stmt = $db-&gt;prepare($query); $stmt-&gt;execute($params); $ro = $stmt-&gt;fetch(PDO::FETCH_NUM); } if ($ro &gt; 0) { foreach ($stmt-&gt;fetchAll(PDO::FETCH_ASSOC) as $row) { echo $row['title']; echo $row['categories']; echo $row['state']; echo $row['zipcode']; } } </code></pre>
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    1. COClean up the whitespace in your example. It'll be easier for everyone reading this to parse, follow and ultimately figure out what the problem is.
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      1. UShafichuk
    2. CO3 questions: What should it be doing? How is it not working? Do you have error messages to share?
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      1. USHorusKol
    3. COLooks like you are calling `errorInfo()` on `$query`, which is actually just a SQL string. Do you have error_reporting enabled? If so, you'll see at least one significant error. `error_reporting(E_ALL); ini_set('display_errors', 1);`
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      1. USMichael Berkowski
 

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