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POPDO dynamic queries with prepared statement
 

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  1. POPDO dynamic queries with prepared statement
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    <p>I have a PDO class wrapper:</p> <pre><code>class DB { private $dbh; private $stmt; private $queryCounter = 0; public function __construct($user, $pass, $dbname) { $dsn = 'mysql:host=localhost;dbname=' . $dbname; $options = array( PDO::MYSQL_ATTR_INIT_COMMAND =&gt; 'SET NAMES utf8', PDO::ATTR_PERSISTENT =&gt; true ); try { $this-&gt;dbh = new PDO($dsn, $user, $pass, $options); } catch (PDOException $e) { echo $e-&gt;getMessage(); die(); } } public function query($query) { $this-&gt;stmt = $this-&gt;dbh-&gt;prepare($query); return $this; } public function bind($pos, $value, $type = null) { if( is_null($type) ) { switch( true ) { case is_int($value): $type = PDO::PARAM_INT; break; case is_bool($value): $type = PDO::PARAM_BOOL; break; case is_null($value): $type = PDO::PARAM_NULL; break; default: $type = PDO::PARAM_STR; } } $this-&gt;stmt-&gt;bindValue($pos, $value, $type); return $this; } public function execute($vars = array()) { $this-&gt;queryCounter++; if (isset($vars) &amp;&amp; count($vars)) { foreach ($vars as $k =&gt; $v ) { $this-&gt;bind(($k+1), $v); } } return $this-&gt;stmt-&gt;execute(); } public function resultset($vars = array()) { $this-&gt;execute($vars); return $this-&gt;stmt-&gt;fetchAll(PDO::FETCH_ASSOC); } public function single($vars = array()) { $this-&gt;execute($vars); return $this-&gt;stmt-&gt;fetch(); } } </code></pre> <p>My dynamic query is here:</p> <pre><code> $per_page = ($filter["show_by"] &gt;= 25 &amp;&amp; $filter["show_by"] &lt;= 100) ? intval($filter["show_by"]) : 25; $start = intval($filter["page_id"]) ? ($filter["page_id"] -1)*$per_page : 0; $sql_counter = 'SELECT COUNT(*) count FROM `products` WHERE 1=1'; $sql_result = 'SELECT * FROM `products` WHERE 1=1'; $data = []; if (isset($filter["mode"]) != 'extra') { $sql_counter .= ' AND `status` = :status'; $sql_result .= ' AND `status` = :status'; $data[":status"] = 1; } if (intval($filter["category_id"])) { $sql_counter .= ' AND FIND_IN_SET(:category_id, `cid`)'; $sql_result .= ' AND FIND_IN_SET(:category_id, `cid`)'; $data[":category_id"] = $filter["category_id"]; } if (strlen($filter["search_by"]) &gt; 0) { $search = '%'.filter_var($filter["search_by"], FILTER_SANITIZE_STRING).'%'; $sql_counter .= ' AND `name` LIKE :search'; $sql_result .= ' AND `name` LIKE :search'; $data[":search"] = $search; } /*print_r($sql_counter); print_r($data); die(); */ $count = $this-&gt;db-&gt;query($sql_counter)-&gt;single($data)[0]; </code></pre> <p>But this returns me an error: </p> <pre><code> PDOStatement::execute(): SQLSTATE[HY093]: Invalid parameter number: number of bound variables does not match number of tokens </code></pre> <p>My debug info is below:</p> <pre><code>SELECT COUNT(*) count FROM `products` WHERE 1=1 AND `status` = :status AND FIND_IN_SET(:category_id, `cid`) AND `name` LIKE :search Array ( [:status] =&gt; 1 [:category_id] =&gt; 7 [:search] =&gt; %123% ) </code></pre> <p>Question: Where is a bug? Thanks!</p>
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    1. USuser889349
    1. USuser889349
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    1. COUnfortunately, questions like "Please watch my code and tell me where is a bug" are sure offtopic here. SO is not a free debugging service, mind you. Not to mention that humans usually have no PHP interpreter in their heads to run your code by means of watching it.
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      1. USYour Common Sense
    2. COWhy oh why do people dump complex code that doesn't work?? Did a simple version work?? Did it work after adding more code?? When did it stop stop working ?? This is basic programming.
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      1. USdavid strachan
 

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