Driver: Improve section about PHP

docs/connect/drivers.md

@@ -279,7 +279,7 @@ For connecting to CrateDB from PHP.
 ```
 ```{sd-item}
 [![](https://img.shields.io/github/v/tag/crate/crate-pdo?label=latest)](https://github.com/crate/crate-pdo)
-[![](https://img.shields.io/badge/example-snippet-darkcyan)](#php)
+[![](https://img.shields.io/badge/example-snippet-darkcyan)](#connect-php)
 ```
 :::
 
@@ -294,7 +294,7 @@ For connecting to CrateDB from PHP, using DBAL and Doctrine.
 ```
 ```{sd-item}
 [![](https://img.shields.io/github/v/tag/crate/crate-dbal?label=latest)](https://github.com/crate/crate-dbal)
-[![](https://img.shields.io/badge/example-snippet-darkcyan)](#php)
+[![](https://img.shields.io/badge/example-snippet-darkcyan)](#connect-php)
 ```
 :::
 

docs/connect/index.md

@@ -178,7 +178,7 @@ application
 
 java
 javascript
-php
+php/index
 python
 ruby
 natural

docs/connect/php/amphp.md

@@ -0,0 +1,42 @@
+(amphp)=
+
+# AMPHP PostgreSQL
+
+:::{div} .float-right .text-right
+[![PHP AMPHP CI](https://github.com/crate/cratedb-examples/actions/workflows/lang-php-amphp.yml/badge.svg)](https://github.com/crate/cratedb-examples/actions/workflows/lang-php-amphp.yml)
+:::
+:::{div} .clearfix
+:::
+
+The [AMPHP PostgreSQL driver], `amphp/postgres`, is an asynchronous
+PostgreSQL client based on Amp.
+
+:::{rubric} Synopsis
+:::
+```php
+<?php
+require 'vendor/autoload.php';
+
+use Amp\Postgres\PostgresConfig;
+use Amp\Postgres\PostgresConnectionPool;
+use function Amp\async;
+use function Amp\Future\await;
+
+await(async(function () {
+    $config = PostgresConfig::fromString("host=localhost user=crate");
+    $pool = new PostgresConnectionPool($config);
+    $statement = $pool->prepare("SELECT * FROM sys.summits ORDER BY height DESC LIMIT 3");
+    $result = $statement->execute();
+    foreach ($result as $row) {
+        print_r($row);
+    }
+}));
+?>
+```
+:::{rubric} Example
+:::
+- [Connect to CrateDB and CrateDB Cloud using AMPHP/PostgreSQL]
+
+
+[AMPHP PostgreSQL driver]: https://github.com/amphp/postgres
+[Connect to CrateDB and CrateDB Cloud using AMPHP/PostgreSQL]: https://github.com/crate/cratedb-examples/tree/main/by-language/php-amphp

docs/connect/php/crate-dbal.md

@@ -0,0 +1,46 @@
+(crate-dbal)=
+
+# CrateDB DBAL
+
+:::{div} .float-right .text-right
+[![crate-dbal CI](https://github.com/crate/crate-dbal/actions/workflows/tests.yml/badge.svg)](https://github.com/crate/crate-dbal/actions/workflows/tests.yml)
+:::
+:::{div} .clearfix
+:::
+
+DBAL is a PHP database abstraction layer that comes with database schema
+introspection, schema management, and PDO support.
+The {ref}`crate-dbal:index`, `crate/crate-dbal`, implements this specification,
+wrapping access to CrateDB's HTTP interface.
+:::{warning}
+The adapter currently does not support recent versions of the Doctrine ORM,
+see [Add support for Doctrine 3] and [Add support for Doctrine 4]. Both
+patches currently stalled, so please explicitly let us know if you have
+any need for corresponding support.
+:::
+
+:::{rubric} Synopsis
+:::
+```php
+<?php
+require 'vendor/autoload.php';
+
+$params = array(
+    'driverClass' => 'Crate\DBAL\Driver\PDOCrate\Driver',
+    'user' => 'admin',
+    'password' => '<PASSWORD>',
+    'host' => '<name-of-your-cluster>.cratedb.net',
+    'port' => 4200
+);
+
+$connection = \Doctrine\DBAL\DriverManager::getConnection($params);
+$sql = "SELECT * FROM sys.summits ORDER BY height DESC LIMIT 3";
+$result = $connection->query($sql)->fetch();
+
+print_r($result);
+?>
+```
+
+
+[Add support for Doctrine 3]: https://github.com/crate/crate-dbal/pull/122
+[Add support for Doctrine 4]: https://github.com/crate/crate-dbal/pull/136

docs/connect/php/crate-pdo.md

@@ -0,0 +1,34 @@
+(crate-pdo)=
+
+# CrateDB PDO
+
+:::{div} .float-right .text-right
+[![crate-pdo CI](https://github.com/crate/crate-pdo/actions/workflows/tests.yml/badge.svg)](https://github.com/crate/crate-pdo/actions/workflows/tests.yml)
+:::
+:::{div} .clearfix
+:::
+
+The PHP Data Objects (PDO) is a standard PHP extension that defines a common
+interface for accessing databases in PHP.
+The {ref}`crate-pdo:index`, `crate/crate-pdo`, implements this specification,
+wrapping access to CrateDB's HTTP interface.
+
+:::{rubric} Synopsis
+:::
+```php
+<?php
+require 'vendor/autoload.php';
+
+use Crate\PDO\PDOCrateDB;
+
+$dsn = '<DATA_SOURCE_NAME>';
+$user = 'crate';
+$password = null;
+$options = null;
+$connection = new PDOCrateDB($dsn, $user, $password, $options);
+
+$stm = $connection->query("SELECT * FROM sys.summits ORDER BY height DESC LIMIT 3");
+$result = $stm->fetch();
+print_r($result);
+?>
+```

docs/connect/php/index.md

@@ -0,0 +1,15 @@
+(connect-php)=
+
+# PHP
+
+:::{div} sd-text-muted
+Connect to CrateDB and CrateDB Cloud from PHP.
+:::
+
+:::{toctree}
+:maxdepth: 1
+amphp
+pdo-pgsql
+crate-pdo
+crate-dbal
+:::

docs/connect/php/pdo-pgsql.md

@@ -0,0 +1,30 @@
+(pdo-pgsql)=
+
+# PostgreSQL PDO
+
+:::{div} .float-right .text-right
+[![PHP PDO CI](https://github.com/crate/cratedb-examples/actions/workflows/lang-php-pdo.yml/badge.svg)](https://github.com/crate/cratedb-examples/actions/workflows/lang-php-pdo.yml)
+:::
+:::{div} .clearfix
+:::
+
+[PDO_PGSQL] is a PHP-native driver that implements the PHP Data Objects (PDO)
+interface, which enables access from PHP to PostgreSQL databases. 
+
+:::{rubric} Synopsis
+:::
+```php
+<?php
+$connection = new PDO("pgsql:host=localhost;port=5432;user=crate");
+$cursor = $connection->query("SELECT * FROM sys.summits ORDER BY height DESC LIMIT 3");
+print_r($cursor->fetchAll(PDO::FETCH_ASSOC));
+?>
+```
+
+:::{rubric} Example
+:::
+- [Use the PDO_PGSQL driver with CrateDB]
+
+
+[PDO_PGSQL]: https://www.php.net/manual/en/ref.pdo-pgsql.php
+[Use the PDO_PGSQL driver with CrateDB]: https://github.com/crate/cratedb-examples/tree/main/by-language/php-pdo