function StreamedJsonResponse::streamArray

1 call to StreamedJsonResponse::streamArray()

StreamedJsonResponse::streamData in vendor/symfony/http-foundation/StreamedJsonResponse.php

File

vendor/symfony/http-foundation/StreamedJsonResponse.php, line 93

Class

StreamedJsonResponse

StreamedJsonResponse represents a streamed HTTP response for JSON.

Namespace

Symfony\Component\HttpFoundation

Code

private function streamArray(array $data, int $jsonEncodingOptions, int $keyEncodingOptions) : void {
    $generators = [];
    array_walk_recursive($data, function (&$item, $key) use (&$generators) {
        if (self::PLACEHOLDER === $key) {
            // if the placeholder is already in the structure it should be replaced with a new one that explode
            // works like expected for the structure
            $generators[] = $key;
        }
        // generators should be used but for better DX all kind of Traversable and objects are supported
        if (\is_object($item)) {
            $generators[] = $item;
            $item = self::PLACEHOLDER;
        }
        elseif (self::PLACEHOLDER === $item) {
            // if the placeholder is already in the structure it should be replaced with a new one that explode
            // works like expected for the structure
            $generators[] = $item;
        }
    });
    $jsonParts = explode('"' . self::PLACEHOLDER . '"', json_encode($data, $jsonEncodingOptions));
    foreach ($generators as $index => $generator) {
        // send first and between parts of the structure
        echo $jsonParts[$index];
        $this->streamData($generator, $jsonEncodingOptions, $keyEncodingOptions);
    }
    // send last part of the structure
    echo $jsonParts[array_key_last($jsonParts)];
}