PHP MYSQL procedure - How to get the output?

Hey folks,

I recently faced a similar dilemma while working on a PHP project involving MySQL stored procedures. Fortunately, I stumbled upon an effective way to retrieve the output of a procedure in PHP. Allow me to share my findings with you!

Once you have executed the stored procedure, you can utilize the mysqli extension in PHP for fetching the output. Here's how you can make it work:

1. Establish a connection to your MySQL database:

php
$mysqli = new mysqli("localhost", "your_username", "your_password", "your_database");

if ($mysqli->connect_errno) {

   die("Failed to connect to MySQL: " . $mysqli->connect_error);

}

php
$a = 10; // Define your input values

$b = 5;

$result = null;



$stmt = $mysqli->prepare("CALL calculate_sum(?, ?, @result)");

$stmt->bind_param("ii", $a, $b);

$stmt->execute();

php
if ($stmt->affected_rows > 0) {

   $stmt->close();



   $outputQuery = $mysqli->query("SELECT @result AS result");

   $outputRow = $outputQuery->fetch_assoc();

   $outputValue = $outputRow['result'];



   echo "The output of the procedure is: " . $outputValue;

} else {

   echo "Error executing the stored procedure.";

}

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Hey there,

I've had a similar experience before, and I found a way to retrieve the output of a MySQL stored procedure in PHP. Let me share it with you!

Once you've executed the stored procedure, you can use the `mysqli` extension in PHP to fetch the result. Here's how you can do it:

1. Connect to your MySQL database:

php
$mysqli = new mysqli("localhost", "your_username", "your_password", "your_database");

if ($mysqli->connect_errno) {

   die("Failed to connect to MySQL: " . $mysqli->connect_error);

}

php
$stmt = $mysqli->prepare("CALL calculate_sum(?, ?, @result)");

$stmt->bind_param("ii", $a, $b); // Assuming $a and $b are your input values

$stmt->execute();

php
$stmt->close();

$result = $mysqli->query("SELECT @result AS result");

$row = $result->fetch_assoc();

$outputValue = $row['result'];



echo "The result is: " . $outputValue;

Hey everyone,

I've encountered a similar situation recently and figured out a slightly different approach to retrieve the output of a MySQL stored procedure in PHP. Let me share my experience with you!

After executing the stored procedure, you can utilize the `PDO` extension in PHP to fetch the result. Here's how you can achieve it:

1. Connect to your MySQL database using `PDO`:

php
$dsn = 'mysql:host=localhost;dbname=your_database;charset=utf8';

$username = 'your_username';

$password = 'your_password';



try {

    $pdo = new PDO($dsn, $username, $password);

    // Enable PDO error mode for handling potential issues

    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

} catch(PDOException $e) {

    die('Connection failed: ' . $e->getMessage());

}

php
$stmt = $pdo->prepare("CALL calculate_sum(?, ?, @result)");

$stmt->bindParam(1, $a, PDO::PARAM_INT);

$stmt->bindParam(2, $b, PDO::PARAM_INT);

$stmt->execute();

php
$stmt = $pdo->prepare("SELECT @result AS result");

$stmt->execute();

$row = $stmt->fetch(PDO::FETCH_ASSOC);

$outputValue = $row['result'];



echo "The result is: " . $outputValue;

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