Stored procedure - assigning a value to a parameter

Question

1.00/5 (1 vote)

See more:

Hello, I have a stored procedure that takes an IN parameter. I would like to retrieve a specific data in my array based on a string. I'm trying to understand how it works and I can't get the value of the parameter.

Thanks for your help in advance.

PS: I specify that I use a PDO connection

What I have tried:

Here is where the call is made:

PHP

$value = 'France';
$request = $bdd->query("CALL select_customer($value)");

while ($data = $request->fetch()) {
	echo $data['cust_name'].'<br/>';
}

Posted 19-Oct-21 20:14pm

Team BODZEN

Updated 19-Oct-21 21:02pm

v4

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Herman<T>.Instance · Answer 1 · 2021-10-19T20:53:00

Solution 1

You can use sqlparameter of type OUT in a stored procedure.
See https://www.sqlshack.com/learn-mysql-the-basics-of-mysql-stored-procedures/#:~:text=The%20MySQL%20Stored%20procedure%20parameter,output%20generated%20by%20SQL%20Statements.[^] for more details.

Posted 19-Oct-21 20:53pm

Herman<T>.Instance

v2

Team BODZEN · Answer 2 · 2021-10-19T21:02:00

Solution 2

I find my error :

PHP

$request = $bdd->query("CALL select_customer('$value')");

I forget to add single quote around the $value. And it works

Posted 19-Oct-21 21:02pm

Team BODZEN

Comments

Richard Deeming 20-Oct-21 11:28am

Your code is vulnerable to SQL Injection[^]. NEVER use string concatenation to build a SQL query. ALWAYS use a parameterized query.

PHP: SQL Injection - Manual[^]
PHP: Prepared statements and stored procedures - Manual[^]