Pete Freitag Pete Freitag

Prepared Statements in PHP and MySQL

Published on May 16, 2005
By Pete Freitag

I'm working on a web security presentation, and I was curious to know if PHP supported prepared statements. It looks like as of PHP 5 they do support it with the new mysqli object (mysqli replaces the mysql class with support for mysql 4.x features)

Here's how you do a prepared statement with php 5 and mysql (error checking is omitted):

$db_connection = new mysqli("localhost", "user", "pass", "db");
$statement = $db_connection->prepare("SELECT thing FROM stuff WHERE id = ?");
$statement->bind_param("i", $id);

The first argument of bind_param is the type, in this case I used i for integer - you can also use s for string, d for double, and b for blob.

The variables in your query are represented with the ? question marks, just like with JDBC. This makes maintenance kind of a pain, it makes you appreciate CFML's prepared statement implementation with cfqueryparam.

You can also use PEAR:DB to run prepared statements in PHP, since it is a database abstraction layer, it is probably a good way to go.

MySQL supports prepared statements in version 4.1 and above.

php mysql prepared statements cfqueryparam mysqli

Prepared Statements in PHP and MySQL was first published on May 16, 2005.

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pls help me . i had created a unique id in php and its not inserted in the database.
$prefix = 'W'; // a universal prefix prefix
$my_random_id = $prefix;
$my_random_id .= chr(rand(65,90));
$my_random_id .= time();
$my_random_id .= $prefix;
i had used this coding
and msql query as
print $my_random_id;
$qurey="INSERT INTO FeedBackDetails (Name,Age,DateOfBirth,Gender,Adress,PhoneNo,MobileNo,Email,Profession,Comments,CustomerId)
by sreekandan.N on 09/13/2006 at 4:59:41 AM UTC
Hi, i need an urgent help, In mysql Without using the prepare statement how to assign
dynamicaly a table name in a procedure. the sample coding is given bellow.

create procedure table_name(x varchar(100))
select * from x;

call table_name('books');

It shows an error message table x doesnot existt

Any one can help me how to solve this problem
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