PHP Stored Procedures
In this page:
Introduction to Stored Procedures
A stored procedure is a named block of SQL logic saved inside the database itself, which you can call from PHP by name instead of sending the full SQL text on every request.
Example: Introduction to Stored Procedures
<?php
// Stored procedures live in the database itself, e.g. MySQL:
// CREATE PROCEDURE GetUser(IN userId INT) BEGIN SELECT * FROM users WHERE id = userId; END
echo "A named block of SQL logic saved inside the database";
?>Login to try C/C++/Java/PHP code in the editor
Calling Stored Procedures
Calling a stored procedure from PHP typically looks like preparing and executing a CALL procedure_name(?, ?) statement, passing parameters the same way you would for any other prepared statement.
Example: Calling Stored Procedures
<?php
// $stmt = $pdo->prepare("CALL GetUser(?)");
// $stmt->execute([5]);
echo "Calling a stored procedure looks like any other prepared statement";
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Passing IN Parameters
Stored procedures can encapsulate multi-step logic (like validating and then inserting related rows across several tables) as a single atomic unit, reducing the number of round-trips between PHP and the database.
Example: Passing IN Parameters
<?php
// CALL CreateOrder(:userId, :productId) -- validates and inserts across multiple tables in one call
echo "One round-trip instead of several separate queries";
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Fetching OUT Parameters
Because the logic lives in the database rather than your PHP codebase, stored procedures are harder to version-control and test alongside your application code, which is a real tradeoff against their performance benefits.
Example: Fetching OUT Parameters
<?php
// Stored procedure logic lives in the database, separate from your PHP source files
echo "Harder to version-control alongside your application code";
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Fetching Multiple Result Sets
Modern PHP applications tend to favor keeping business logic in application code and using stored procedures more sparingly, reserving them for cases with a clear, specific performance or data-integrity need.
Example: Fetching Multiple Result Sets
<?php
// Most app logic stays in PHP; stored procedures are reserved for specific performance needs
echo "Use sparingly, for a clear, specific reason";
?>Login to try C/C++/Java/PHP code in the editor
Chapter Quiz — Complete all 21 topics to unlock
0/21 topics done
Complete these topics first:
- PHP MySQL Introduction
- PHP MySQLi Connection
- PHP PDO Introduction
- PHP CRUD Operations
- PHP Prepared Statements
- PHP Stored Procedures
- PHP Transactions
- PHP Error Handling in DB
- PHP MySQL Connect
- PHP MySQL Create DB
- PHP MySQL Create Table
- PHP MySQL Insert Data
- PHP MySQL Get Last ID
- PHP MySQL Insert Multiple
- PHP MySQL Prepared Statements
- PHP MySQL Select Data
- PHP MySQL Where
- PHP MySQL Order By
- PHP MySQL Delete Data
- PHP MySQL Update Data
- PHP MySQL Limit Data