mysql_fetch_assoc（）的PDO方法？

Question

I used to do :

$resource = mysql_query("SELECT * FROM table WHERE id = " . $id);
$user = mysql_fetch_assoc($resource);
echo "Hello User, your number is" . $user['number'];

I read that mysql statements are all deprecated and should not be used.

How can i do this with PDO?

The first line would be :

$stmt = $db->prepare("SELECT * FROM table WHERE id = " . $id); // there was an aditional double quote in here.
$stmt->execute(array(':id' => $id));

What about the mysql_fetch_assoc() function?

I am using php

Answer 1

You can use (PDO::FETCH_ASSOC) constant
Usage will be while ($res = $stmt->fetch(PDO::FETCH_ASSOC)){ .... }
Here's the reference (documentation precisely) : http://www.php.net/manual/en/pdostatement.fetch.php

Answer 2

All well documentned in the manual: http://php.net/manual/en/pdostatement.fetchall.php

As example:

<?php
$sth = $dbh->prepare("SELECT name, colour FROM fruit");
$sth->execute();

/* Fetch all of the remaining rows in the result set */
print("Fetch all of the remaining rows in the result set:\n");
$result = $sth->fetchAll();
print_r($result);
?>

Answer 3

There is a nice manual right here .

From which you can learn what you don't need to set fetch mode explicitly with every fetch.
...and even what with PDO you don't need no arrays at all to echo a number:

$stmt = $db->prepare("SELECT number FROM table WHERE id = ?");
$stmt->execute(array($id));
echo "Hello User, your number is".$stmt->fetchColumn();

Answer 4

This is a nice tutorial: http://wiki.hashphp.org/PDO_Tutorial_for_MySQL_Developers

<?php
   $db = new PDO('mysql:host=localhost;dbname=testdb;charset=utf8', 'username', 'password');
   $stmt = $db->query("SELECT * FROM table");
   $results = $stmt->fetchAll(PDO::FETCH_ASSOC);
   var_dump($results);
?>

Answer 5

You can use PDO::FETCH_ASSOC for the same.

$stmt = $db->prepare("SELECT * FROM table WHERE id = :id");
$stmt->execute(array(':id' => $id));
$stmt->setFetchMode(PDO::FETCH_ASSOC);
$stmt->execute();
while($record = $stmt->fetch()) {
   //do something
}

You can find a good tutorial here