DynamoDB examples using SDK for PHP - AWS SDK for PHP

DynamoDB examples using SDK for PHP

The following code examples show you how to perform actions and implement common scenarios by using the AWS SDK for PHP with DynamoDB.

Actions are code excerpts from larger programs and must be run in context. While actions show you how to call individual service functions, you can see actions in context in their related scenarios and cross-service examples.

Scenarios are code examples that show you how to accomplish a specific task by calling multiple functions within the same service.

Each example includes a link to GitHub, where you can find instructions on how to set up and run the code in context.

Actions

The following code example shows how to use BatchExecuteStatement.

SDK for PHP
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

public function getItemByPartiQLBatch(string $tableName, array $keys): Result { $statements = []; foreach ($keys as $key) { list($statement, $parameters) = $this->buildStatementAndParameters("SELECT", $tableName, $key['Item']); $statements[] = [ 'Statement' => "$statement", 'Parameters' => $parameters, ]; } return $this->dynamoDbClient->batchExecuteStatement([ 'Statements' => $statements, ]); } public function insertItemByPartiQLBatch(string $statement, array $parameters) { $this->dynamoDbClient->batchExecuteStatement([ 'Statements' => [ [ 'Statement' => "$statement", 'Parameters' => $parameters, ], ], ]); } public function updateItemByPartiQLBatch(string $statement, array $parameters) { $this->dynamoDbClient->batchExecuteStatement([ 'Statements' => [ [ 'Statement' => "$statement", 'Parameters' => $parameters, ], ], ]); } public function deleteItemByPartiQLBatch(string $statement, array $parameters) { $this->dynamoDbClient->batchExecuteStatement([ 'Statements' => [ [ 'Statement' => "$statement", 'Parameters' => $parameters, ], ], ]); }

The following code example shows how to use BatchWriteItem.

SDK for PHP
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

public function writeBatch(string $TableName, array $Batch, int $depth = 2) { if (--$depth <= 0) { throw new Exception("Max depth exceeded. Please try with fewer batch items or increase depth."); } $marshal = new Marshaler(); $total = 0; foreach (array_chunk($Batch, 25) as $Items) { foreach ($Items as $Item) { $BatchWrite['RequestItems'][$TableName][] = ['PutRequest' => ['Item' => $marshal->marshalItem($Item)]]; } try { echo "Batching another " . count($Items) . " for a total of " . ($total += count($Items)) . " items!\n"; $response = $this->dynamoDbClient->batchWriteItem($BatchWrite); $BatchWrite = []; } catch (Exception $e) { echo "uh oh..."; echo $e->getMessage(); die(); } if ($total >= 250) { echo "250 movies is probably enough. Right? We can stop there.\n"; break; } } }
  • For API details, see BatchWriteItem in AWS SDK for PHP API Reference.

The following code example shows how to use CreateTable.

SDK for PHP
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

Create a table.

$tableName = "ddb_demo_table_$uuid"; $service->createTable( $tableName, [ new DynamoDBAttribute('year', 'N', 'HASH'), new DynamoDBAttribute('title', 'S', 'RANGE') ] ); public function createTable(string $tableName, array $attributes) { $keySchema = []; $attributeDefinitions = []; foreach ($attributes as $attribute) { if (is_a($attribute, DynamoDBAttribute::class)) { $keySchema[] = ['AttributeName' => $attribute->AttributeName, 'KeyType' => $attribute->KeyType]; $attributeDefinitions[] = ['AttributeName' => $attribute->AttributeName, 'AttributeType' => $attribute->AttributeType]; } } $this->dynamoDbClient->createTable([ 'TableName' => $tableName, 'KeySchema' => $keySchema, 'AttributeDefinitions' => $attributeDefinitions, 'ProvisionedThroughput' => ['ReadCapacityUnits' => 10, 'WriteCapacityUnits' => 10], ]); }
  • For API details, see CreateTable in AWS SDK for PHP API Reference.

The following code example shows how to use DeleteItem.

SDK for PHP
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

$key = [ 'Item' => [ 'title' => [ 'S' => $movieName, ], 'year' => [ 'N' => $movieYear, ], ] ]; $service->deleteItemByKey($tableName, $key); echo "But, bad news, this was a trap. That movie has now been deleted because of your rating...harsh.\n"; public function deleteItemByKey(string $tableName, array $key) { $this->dynamoDbClient->deleteItem([ 'Key' => $key['Item'], 'TableName' => $tableName, ]); }
  • For API details, see DeleteItem in AWS SDK for PHP API Reference.

The following code example shows how to use DeleteTable.

SDK for PHP
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

public function deleteTable(string $TableName) { $this->customWaiter(function () use ($TableName) { return $this->dynamoDbClient->deleteTable([ 'TableName' => $TableName, ]); }); }
  • For API details, see DeleteTable in AWS SDK for PHP API Reference.

The following code example shows how to use ExecuteStatement.

SDK for PHP
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

public function insertItemByPartiQL(string $statement, array $parameters) { $this->dynamoDbClient->executeStatement([ 'Statement' => "$statement", 'Parameters' => $parameters, ]); } public function getItemByPartiQL(string $tableName, array $key): Result { list($statement, $parameters) = $this->buildStatementAndParameters("SELECT", $tableName, $key['Item']); return $this->dynamoDbClient->executeStatement([ 'Parameters' => $parameters, 'Statement' => $statement, ]); } public function updateItemByPartiQL(string $statement, array $parameters) { $this->dynamoDbClient->executeStatement([ 'Statement' => $statement, 'Parameters' => $parameters, ]); } public function deleteItemByPartiQL(string $statement, array $parameters) { $this->dynamoDbClient->executeStatement([ 'Statement' => $statement, 'Parameters' => $parameters, ]); }

The following code example shows how to use GetItem.

SDK for PHP
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

$movie = $service->getItemByKey($tableName, $key); echo "\nThe movie {$movie['Item']['title']['S']} was released in {$movie['Item']['year']['N']}.\n"; public function getItemByKey(string $tableName, array $key) { return $this->dynamoDbClient->getItem([ 'Key' => $key['Item'], 'TableName' => $tableName, ]); }
  • For API details, see GetItem in AWS SDK for PHP API Reference.

The following code example shows how to use ListTables.

SDK for PHP
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

public function listTables($exclusiveStartTableName = "", $limit = 100) { $this->dynamoDbClient->listTables([ 'ExclusiveStartTableName' => $exclusiveStartTableName, 'Limit' => $limit, ]); }
  • For API details, see ListTables in AWS SDK for PHP API Reference.

The following code example shows how to use PutItem.

SDK for PHP
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

echo "What's the name of the last movie you watched?\n"; while (empty($movieName)) { $movieName = testable_readline("Movie name: "); } echo "And what year was it released?\n"; $movieYear = "year"; while (!is_numeric($movieYear) || intval($movieYear) != $movieYear) { $movieYear = testable_readline("Year released: "); } $service->putItem([ 'Item' => [ 'year' => [ 'N' => "$movieYear", ], 'title' => [ 'S' => $movieName, ], ], 'TableName' => $tableName, ]); public function putItem(array $array) { $this->dynamoDbClient->putItem($array); }
  • For API details, see PutItem in AWS SDK for PHP API Reference.

The following code example shows how to use Query.

SDK for PHP
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

$birthKey = [ 'Key' => [ 'year' => [ 'N' => "$birthYear", ], ], ]; $result = $service->query($tableName, $birthKey); public function query(string $tableName, $key) { $expressionAttributeValues = []; $expressionAttributeNames = []; $keyConditionExpression = ""; $index = 1; foreach ($key as $name => $value) { $keyConditionExpression .= "#" . array_key_first($value) . " = :v$index,"; $expressionAttributeNames["#" . array_key_first($value)] = array_key_first($value); $hold = array_pop($value); $expressionAttributeValues[":v$index"] = [ array_key_first($hold) => array_pop($hold), ]; } $keyConditionExpression = substr($keyConditionExpression, 0, -1); $query = [ 'ExpressionAttributeValues' => $expressionAttributeValues, 'ExpressionAttributeNames' => $expressionAttributeNames, 'KeyConditionExpression' => $keyConditionExpression, 'TableName' => $tableName, ]; return $this->dynamoDbClient->query($query); }
  • For API details, see Query in AWS SDK for PHP API Reference.

The following code example shows how to use Scan.

SDK for PHP
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

$yearsKey = [ 'Key' => [ 'year' => [ 'N' => [ 'minRange' => 1990, 'maxRange' => 1999, ], ], ], ]; $filter = "year between 1990 and 1999"; echo "\nHere's a list of all the movies released in the 90s:\n"; $result = $service->scan($tableName, $yearsKey, $filter); foreach ($result['Items'] as $movie) { $movie = $marshal->unmarshalItem($movie); echo $movie['title'] . "\n"; } public function scan(string $tableName, array $key, string $filters) { $query = [ 'ExpressionAttributeNames' => ['#year' => 'year'], 'ExpressionAttributeValues' => [ ":min" => ['N' => '1990'], ":max" => ['N' => '1999'], ], 'FilterExpression' => "#year between :min and :max", 'TableName' => $tableName, ]; return $this->dynamoDbClient->scan($query); }
  • For API details, see Scan in AWS SDK for PHP API Reference.

The following code example shows how to use UpdateItem.

SDK for PHP
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

echo "What rating would you like to give {$movie['Item']['title']['S']}?\n"; $rating = 0; while (!is_numeric($rating) || intval($rating) != $rating || $rating < 1 || $rating > 10) { $rating = testable_readline("Rating (1-10): "); } $service->updateItemAttributeByKey($tableName, $key, 'rating', 'N', $rating); public function updateItemAttributeByKey( string $tableName, array $key, string $attributeName, string $attributeType, string $newValue ) { $this->dynamoDbClient->updateItem([ 'Key' => $key['Item'], 'TableName' => $tableName, 'UpdateExpression' => "set #NV=:NV", 'ExpressionAttributeNames' => [ '#NV' => $attributeName, ], 'ExpressionAttributeValues' => [ ':NV' => [ $attributeType => $newValue ] ], ]); }
  • For API details, see UpdateItem in AWS SDK for PHP API Reference.

Scenarios

The following code example shows how to:

  • Create a table that can hold movie data.

  • Put, get, and update a single movie in the table.

  • Write movie data to the table from a sample JSON file.

  • Query for movies that were released in a given year.

  • Scan for movies that were released in a range of years.

  • Delete a movie from the table, then delete the table.

SDK for PHP
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

namespace DynamoDb\Basics; use Aws\DynamoDb\Marshaler; use DynamoDb; use DynamoDb\DynamoDBAttribute; use DynamoDb\DynamoDBService; use function AwsUtilities\loadMovieData; use function AwsUtilities\testable_readline; class GettingStartedWithDynamoDB { public function run() { echo("\n"); echo("--------------------------------------\n"); print("Welcome to the Amazon DynamoDB getting started demo using PHP!\n"); echo("--------------------------------------\n"); $uuid = uniqid(); $service = new DynamoDBService(); $tableName = "ddb_demo_table_$uuid"; $service->createTable( $tableName, [ new DynamoDBAttribute('year', 'N', 'HASH'), new DynamoDBAttribute('title', 'S', 'RANGE') ] ); echo "Waiting for table..."; $service->dynamoDbClient->waitUntil("TableExists", ['TableName' => $tableName]); echo "table $tableName found!\n"; echo "What's the name of the last movie you watched?\n"; while (empty($movieName)) { $movieName = testable_readline("Movie name: "); } echo "And what year was it released?\n"; $movieYear = "year"; while (!is_numeric($movieYear) || intval($movieYear) != $movieYear) { $movieYear = testable_readline("Year released: "); } $service->putItem([ 'Item' => [ 'year' => [ 'N' => "$movieYear", ], 'title' => [ 'S' => $movieName, ], ], 'TableName' => $tableName, ]); echo "How would you rate the movie from 1-10?\n"; $rating = 0; while (!is_numeric($rating) || intval($rating) != $rating || $rating < 1 || $rating > 10) { $rating = testable_readline("Rating (1-10): "); } echo "What was the movie about?\n"; while (empty($plot)) { $plot = testable_readline("Plot summary: "); } $key = [ 'Item' => [ 'title' => [ 'S' => $movieName, ], 'year' => [ 'N' => $movieYear, ], ] ]; $attributes = ["rating" => [ 'AttributeName' => 'rating', 'AttributeType' => 'N', 'Value' => $rating, ], 'plot' => [ 'AttributeName' => 'plot', 'AttributeType' => 'S', 'Value' => $plot, ] ]; $service->updateItemAttributesByKey($tableName, $key, $attributes); echo "Movie added and updated."; $batch = json_decode(loadMovieData()); $service->writeBatch($tableName, $batch); $movie = $service->getItemByKey($tableName, $key); echo "\nThe movie {$movie['Item']['title']['S']} was released in {$movie['Item']['year']['N']}.\n"; echo "What rating would you like to give {$movie['Item']['title']['S']}?\n"; $rating = 0; while (!is_numeric($rating) || intval($rating) != $rating || $rating < 1 || $rating > 10) { $rating = testable_readline("Rating (1-10): "); } $service->updateItemAttributeByKey($tableName, $key, 'rating', 'N', $rating); $movie = $service->getItemByKey($tableName, $key); echo "Ok, you have rated {$movie['Item']['title']['S']} as a {$movie['Item']['rating']['N']}\n"; $service->deleteItemByKey($tableName, $key); echo "But, bad news, this was a trap. That movie has now been deleted because of your rating...harsh.\n"; echo "That's okay though. The book was better. Now, for something lighter, in what year were you born?\n"; $birthYear = "not a number"; while (!is_numeric($birthYear) || $birthYear >= date("Y")) { $birthYear = testable_readline("Birth year: "); } $birthKey = [ 'Key' => [ 'year' => [ 'N' => "$birthYear", ], ], ]; $result = $service->query($tableName, $birthKey); $marshal = new Marshaler(); echo "Here are the movies in our collection released the year you were born:\n"; $oops = "Oops! There were no movies released in that year (that we know of).\n"; $display = ""; foreach ($result['Items'] as $movie) { $movie = $marshal->unmarshalItem($movie); $display .= $movie['title'] . "\n"; } echo ($display) ?: $oops; $yearsKey = [ 'Key' => [ 'year' => [ 'N' => [ 'minRange' => 1990, 'maxRange' => 1999, ], ], ], ]; $filter = "year between 1990 and 1999"; echo "\nHere's a list of all the movies released in the 90s:\n"; $result = $service->scan($tableName, $yearsKey, $filter); foreach ($result['Items'] as $movie) { $movie = $marshal->unmarshalItem($movie); echo $movie['title'] . "\n"; } echo "\nCleaning up this demo by deleting table $tableName...\n"; $service->deleteTable($tableName); } }

The following code example shows how to:

  • Get a batch of items by running multiple SELECT statements.

  • Add a batch of items by running multiple INSERT statements.

  • Update a batch of items by running multiple UPDATE statements.

  • Delete a batch of items by running multiple DELETE statements.

SDK for PHP
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

namespace DynamoDb\PartiQL_Basics; use Aws\DynamoDb\Marshaler; use DynamoDb; use DynamoDb\DynamoDBAttribute; use function AwsUtilities\loadMovieData; use function AwsUtilities\testable_readline; class GettingStartedWithPartiQLBatch { public function run() { echo("\n"); echo("--------------------------------------\n"); print("Welcome to the Amazon DynamoDB - PartiQL getting started demo using PHP!\n"); echo("--------------------------------------\n"); $uuid = uniqid(); $service = new DynamoDb\DynamoDBService(); $tableName = "partiql_demo_table_$uuid"; $service->createTable( $tableName, [ new DynamoDBAttribute('year', 'N', 'HASH'), new DynamoDBAttribute('title', 'S', 'RANGE') ] ); echo "Waiting for table..."; $service->dynamoDbClient->waitUntil("TableExists", ['TableName' => $tableName]); echo "table $tableName found!\n"; echo "What's the name of the last movie you watched?\n"; while (empty($movieName)) { $movieName = testable_readline("Movie name: "); } echo "And what year was it released?\n"; $movieYear = "year"; while (!is_numeric($movieYear) || intval($movieYear) != $movieYear) { $movieYear = testable_readline("Year released: "); } $key = [ 'Item' => [ 'year' => [ 'N' => "$movieYear", ], 'title' => [ 'S' => $movieName, ], ], ]; list($statement, $parameters) = $service->buildStatementAndParameters("INSERT", $tableName, $key); $service->insertItemByPartiQLBatch($statement, $parameters); echo "How would you rate the movie from 1-10?\n"; $rating = 0; while (!is_numeric($rating) || intval($rating) != $rating || $rating < 1 || $rating > 10) { $rating = testable_readline("Rating (1-10): "); } echo "What was the movie about?\n"; while (empty($plot)) { $plot = testable_readline("Plot summary: "); } $attributes = [ new DynamoDBAttribute('rating', 'N', 'HASH', $rating), new DynamoDBAttribute('plot', 'S', 'RANGE', $plot), ]; list($statement, $parameters) = $service->buildStatementAndParameters("UPDATE", $tableName, $key, $attributes); $service->updateItemByPartiQLBatch($statement, $parameters); echo "Movie added and updated.\n"; $batch = json_decode(loadMovieData()); $service->writeBatch($tableName, $batch); $movie = $service->getItemByPartiQLBatch($tableName, [$key]); echo "\nThe movie {$movie['Responses'][0]['Item']['title']['S']} was released in {$movie['Responses'][0]['Item']['year']['N']}.\n"; echo "What rating would you like to give {$movie['Responses'][0]['Item']['title']['S']}?\n"; $rating = 0; while (!is_numeric($rating) || intval($rating) != $rating || $rating < 1 || $rating > 10) { $rating = testable_readline("Rating (1-10): "); } $attributes = [ new DynamoDBAttribute('rating', 'N', 'HASH', $rating), new DynamoDBAttribute('plot', 'S', 'RANGE', $plot) ]; list($statement, $parameters) = $service->buildStatementAndParameters("UPDATE", $tableName, $key, $attributes); $service->updateItemByPartiQLBatch($statement, $parameters); $movie = $service->getItemByPartiQLBatch($tableName, [$key]); echo "Okay, you have rated {$movie['Responses'][0]['Item']['title']['S']} as a {$movie['Responses'][0]['Item']['rating']['N']}\n"; $service->deleteItemByPartiQLBatch($statement, $parameters); echo "But, bad news, this was a trap. That movie has now been deleted because of your rating...harsh.\n"; echo "That's okay though. The book was better. Now, for something lighter, in what year were you born?\n"; $birthYear = "not a number"; while (!is_numeric($birthYear) || $birthYear >= date("Y")) { $birthYear = testable_readline("Birth year: "); } $birthKey = [ 'Key' => [ 'year' => [ 'N' => "$birthYear", ], ], ]; $result = $service->query($tableName, $birthKey); $marshal = new Marshaler(); echo "Here are the movies in our collection released the year you were born:\n"; $oops = "Oops! There were no movies released in that year (that we know of).\n"; $display = ""; foreach ($result['Items'] as $movie) { $movie = $marshal->unmarshalItem($movie); $display .= $movie['title'] . "\n"; } echo ($display) ?: $oops; $yearsKey = [ 'Key' => [ 'year' => [ 'N' => [ 'minRange' => 1990, 'maxRange' => 1999, ], ], ], ]; $filter = "year between 1990 and 1999"; echo "\nHere's a list of all the movies released in the 90s:\n"; $result = $service->scan($tableName, $yearsKey, $filter); foreach ($result['Items'] as $movie) { $movie = $marshal->unmarshalItem($movie); echo $movie['title'] . "\n"; } echo "\nCleaning up this demo by deleting table $tableName...\n"; $service->deleteTable($tableName); } } public function insertItemByPartiQLBatch(string $statement, array $parameters) { $this->dynamoDbClient->batchExecuteStatement([ 'Statements' => [ [ 'Statement' => "$statement", 'Parameters' => $parameters, ], ], ]); } public function getItemByPartiQLBatch(string $tableName, array $keys): Result { $statements = []; foreach ($keys as $key) { list($statement, $parameters) = $this->buildStatementAndParameters("SELECT", $tableName, $key['Item']); $statements[] = [ 'Statement' => "$statement", 'Parameters' => $parameters, ]; } return $this->dynamoDbClient->batchExecuteStatement([ 'Statements' => $statements, ]); } public function updateItemByPartiQLBatch(string $statement, array $parameters) { $this->dynamoDbClient->batchExecuteStatement([ 'Statements' => [ [ 'Statement' => "$statement", 'Parameters' => $parameters, ], ], ]); } public function deleteItemByPartiQLBatch(string $statement, array $parameters) { $this->dynamoDbClient->batchExecuteStatement([ 'Statements' => [ [ 'Statement' => "$statement", 'Parameters' => $parameters, ], ], ]); }

The following code example shows how to:

  • Get an item by running a SELECT statement.

  • Add an item by running an INSERT statement.

  • Update an item by running an UPDATE statement.

  • Delete an item by running a DELETE statement.

SDK for PHP
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

namespace DynamoDb\PartiQL_Basics; use Aws\DynamoDb\Marshaler; use DynamoDb; use DynamoDb\DynamoDBAttribute; use function AwsUtilities\testable_readline; use function AwsUtilities\loadMovieData; class GettingStartedWithPartiQL { public function run() { echo("\n"); echo("--------------------------------------\n"); print("Welcome to the Amazon DynamoDB - PartiQL getting started demo using PHP!\n"); echo("--------------------------------------\n"); $uuid = uniqid(); $service = new DynamoDb\DynamoDBService(); $tableName = "partiql_demo_table_$uuid"; $service->createTable( $tableName, [ new DynamoDBAttribute('year', 'N', 'HASH'), new DynamoDBAttribute('title', 'S', 'RANGE') ] ); echo "Waiting for table..."; $service->dynamoDbClient->waitUntil("TableExists", ['TableName' => $tableName]); echo "table $tableName found!\n"; echo "What's the name of the last movie you watched?\n"; while (empty($movieName)) { $movieName = testable_readline("Movie name: "); } echo "And what year was it released?\n"; $movieYear = "year"; while (!is_numeric($movieYear) || intval($movieYear) != $movieYear) { $movieYear = testable_readline("Year released: "); } $key = [ 'Item' => [ 'year' => [ 'N' => "$movieYear", ], 'title' => [ 'S' => $movieName, ], ], ]; list($statement, $parameters) = $service->buildStatementAndParameters("INSERT", $tableName, $key); $service->insertItemByPartiQL($statement, $parameters); echo "How would you rate the movie from 1-10?\n"; $rating = 0; while (!is_numeric($rating) || intval($rating) != $rating || $rating < 1 || $rating > 10) { $rating = testable_readline("Rating (1-10): "); } echo "What was the movie about?\n"; while (empty($plot)) { $plot = testable_readline("Plot summary: "); } $attributes = [ new DynamoDBAttribute('rating', 'N', 'HASH', $rating), new DynamoDBAttribute('plot', 'S', 'RANGE', $plot), ]; list($statement, $parameters) = $service->buildStatementAndParameters("UPDATE", $tableName, $key, $attributes); $service->updateItemByPartiQL($statement, $parameters); echo "Movie added and updated.\n"; $batch = json_decode(loadMovieData()); $service->writeBatch($tableName, $batch); $movie = $service->getItemByPartiQL($tableName, $key); echo "\nThe movie {$movie['Items'][0]['title']['S']} was released in {$movie['Items'][0]['year']['N']}.\n"; echo "What rating would you like to give {$movie['Items'][0]['title']['S']}?\n"; $rating = 0; while (!is_numeric($rating) || intval($rating) != $rating || $rating < 1 || $rating > 10) { $rating = testable_readline("Rating (1-10): "); } $attributes = [ new DynamoDBAttribute('rating', 'N', 'HASH', $rating), new DynamoDBAttribute('plot', 'S', 'RANGE', $plot) ]; list($statement, $parameters) = $service->buildStatementAndParameters("UPDATE", $tableName, $key, $attributes); $service->updateItemByPartiQL($statement, $parameters); $movie = $service->getItemByPartiQL($tableName, $key); echo "Okay, you have rated {$movie['Items'][0]['title']['S']} as a {$movie['Items'][0]['rating']['N']}\n"; $service->deleteItemByPartiQL($statement, $parameters); echo "But, bad news, this was a trap. That movie has now been deleted because of your rating...harsh.\n"; echo "That's okay though. The book was better. Now, for something lighter, in what year were you born?\n"; $birthYear = "not a number"; while (!is_numeric($birthYear) || $birthYear >= date("Y")) { $birthYear = testable_readline("Birth year: "); } $birthKey = [ 'Key' => [ 'year' => [ 'N' => "$birthYear", ], ], ]; $result = $service->query($tableName, $birthKey); $marshal = new Marshaler(); echo "Here are the movies in our collection released the year you were born:\n"; $oops = "Oops! There were no movies released in that year (that we know of).\n"; $display = ""; foreach ($result['Items'] as $movie) { $movie = $marshal->unmarshalItem($movie); $display .= $movie['title'] . "\n"; } echo ($display) ?: $oops; $yearsKey = [ 'Key' => [ 'year' => [ 'N' => [ 'minRange' => 1990, 'maxRange' => 1999, ], ], ], ]; $filter = "year between 1990 and 1999"; echo "\nHere's a list of all the movies released in the 90s:\n"; $result = $service->scan($tableName, $yearsKey, $filter); foreach ($result['Items'] as $movie) { $movie = $marshal->unmarshalItem($movie); echo $movie['title'] . "\n"; } echo "\nCleaning up this demo by deleting table $tableName...\n"; $service->deleteTable($tableName); } } public function insertItemByPartiQL(string $statement, array $parameters) { $this->dynamoDbClient->executeStatement([ 'Statement' => "$statement", 'Parameters' => $parameters, ]); } public function getItemByPartiQL(string $tableName, array $key): Result { list($statement, $parameters) = $this->buildStatementAndParameters("SELECT", $tableName, $key['Item']); return $this->dynamoDbClient->executeStatement([ 'Parameters' => $parameters, 'Statement' => $statement, ]); } public function updateItemByPartiQL(string $statement, array $parameters) { $this->dynamoDbClient->executeStatement([ 'Statement' => $statement, 'Parameters' => $parameters, ]); } public function deleteItemByPartiQL(string $statement, array $parameters) { $this->dynamoDbClient->executeStatement([ 'Statement' => $statement, 'Parameters' => $parameters, ]); }