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PHP Integrating PHP with Databases Filtering Input for Queries Creating the Search Function

jinhwa yoo
jinhwa yoo
10,042 Points
Posted by jinhwa yoo
jinhwa yoo
10,042 Points

help me

function search_catalog_array($search, $limit = null, $offset = 0) { include("connection.php");

try {
   $sql = "SELECT media_id, title, category,img 
     FROM Media
     WHERE title LIKE ?
     ORDER BY 
     REPLACE(
       REPLACE(
          REPLACE(title,'The ',''),
          'An ',
          ''
       ),
       'A ',
       ''
     )";
   if (is_integer($limit)) {
      $results = $db->prepare($sql . " LIMIT ? OFFSET ?");
     $results->bindValue(1,"%".$search."%",PDO::PARAM_STR);

---> what does " LIMIT ? OFFSET ?" stands for ?? ---> what does this mean?? ---> what does "PDO::PARAM_STR" stands for ??

      $results->bindParam(2,$limit,PDO::PARAM_INT);
      $results->bindParam(3,$offset,PDO::PARAM_INT);
   } else {
     $results = $db->prepare($sql);
     $results->bindValue(1,"%".$search."%",PDO::PARAM_STR);
   }
   $results->execute();
} catch (Exception $e) {
   echo "Unable to retrieved results";
   exit;
}

$catalog = $results->fetchAll();
return $catalog;

}

if it tell me specifically, it will be great!! I will be understanding

Simon Coates
Simon Coates
28,694 Points
Simon Coates
Simon Coates
28,694 Points

PDO::PARAM_STR tells bindParam the type of the value being bound into the SQL query. see here.

Simon Coates
Simon Coates
28,694 Points
Simon Coates
Simon Coates
28,694 Points

with " LIMIT ? OFFSET ?", the question marks (?) are placeholders. They are where your parameters or values are used, when you use bind param or bind value methods. The documentation here and here shows some example and options.