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When introducing database connections to your PHP applications, a structured approach to writing, maintaining and executing queries is required. The PHP.GT/Database project is intended to enhance your database query maintainability by introducing the following concepts:

• Automatic database migrations
• Encapsulation of queries using query collections
• Handling of named or sequential parameter binding
• Type-safe getters

Example usage

This library organises SQL access through a consistent API. To execute an example query located at src/query/user/getById.sql, the following pattern is used:

$userRow = $db->fetch("user/getById", 105);

Examples of CRUD operations:

// "fetchAll" method returns an iterable ResultSet of Row objects.
$bookResultSet = $db->fetchAll("shopitem/getItemsInCategory", "books");

foreach($bookResultSet as $bookRow) {
	echo "Book title: ", $bookRow->getString("title"), PHP_EOL;
	echo "Book price: £", ($bookRow->getFloat("price") + $bookRow->getFloat("vat")), PHP_EOL;
	
	if($bookRow->offerEnds) {
		echo "Item on offer until: ", $bookRow->getDateTime("offerEnds")->format("dS M Y");
	}
}

// "Create" method always returns the last inserted ID:
$newCustomerId = $db->create("customer/new", [
	"first_name" => "Marissa",
	"last_name" => "Mayer",
	"dob" => new DateTime("1975-05-30"),
]);

// "Update" or "delete" methods always return the number of affected rows:
$numberOfItemsAffected = $db->update("shop/item/increasePrice", [
	"percent" => 12.5,
	"max_increase" => 20.00,
]);

$numberOfDeletedReviews = $db->delete(
	"remove/deleteOlderThan",
	new DateTime("-6 months")
);

// Individual type-safe fields can be pulled from queries that return only one column:
$userName = $db->fetchString("user/getUsernameById", 105);

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Read the Quick start guide to start learning by example.