php - PDO Read From Database -


i have made code using pdo read table database. try echo result blank page without error.

my code is: 

<?php include 'config.php'; id = "264540733647332"; try {     $conn = new pdo("mysql:host=$hostname;dbname=mydata", $username, $password);     $conn->setattribute(pdo::attr_errmode, pdo::errmode_exception);     } catch(pdoexception $e)     {     echo "connection failed: " . $e->getmessage();     }      $result = $conn->query("select * mytable id='".$id."';");       if ($result->fetchcolumn() != 0)     {         foreach ( $result->fetchall(pdo::fetch_both) $row ) {              $data1 = $row['data1'];             $data2 = $row['data2'];             echo $data2;         }     }     ?>

but echo empty without error. doing wrong?

thank all!

few things change:

  • dont forget $
  • if going catch error, catch whole pdo code
  • you can use rowcount() count rows
  • echo if record count 0

include 'config.php'; $id = "264540733647332"; try {     $conn = new pdo("mysql:host=$hostname;dbname=mydata", $username, $password);     $conn->setattribute(pdo::attr_errmode, pdo::errmode_exception);     $result = $conn->query("select * mytable id='".$id."';");       if ($result->rowcount() != 0)     {         $row = $result->fetch(pdo::fetch_both);         echo $row['data1'];         echo $row['data2'];     }else{         echo 'no row found';     } }catch(pdoexception $e){     echo "error  " . $e->getmessage(); }

also use prepared statements example:

$result = $conn->prepare("select * mytable id=:id");  $result->execute(array(':id'=>$id));

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