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<?php |
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declare(strict_types=1); |
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namespace Jasny\DotKey\Internal; |
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use Jasny\DotKey\ResolveException; |
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/** |
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* Static methods to read subject using path. |
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* @internal |
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*/ |
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final class Read |
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{ |
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/** |
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* Check if path exists in subject. |
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* |
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* @param object|array<string,mixed> $subject |
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* @param string $path |
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* @param string $delimiter |
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* @return bool |
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*/ |
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public static function exists($subject, string $path, string $delimiter = '.'): bool |
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{ |
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$index = Helpers::splitPath($path, $delimiter); |
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foreach ($index as $key) { |
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if (!\is_array($subject) && !\is_object($subject)) { |
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return false; |
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} |
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$subject = Helpers::descend($subject, $key, $exists, true); |
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if (!$exists) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* Get a value from subject by path. |
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* |
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* @param object|array<string,mixed> $subject |
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* @param string $path |
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* @param string $delimiter |
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* @return mixed |
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* @throws ResolveException |
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*/ |
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public static function get($subject, string $path, string $delimiter = '.') |
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{ |
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$index = Helpers::splitPath($path, $delimiter); |
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while ($index !== []) { |
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$key = \array_shift($index); |
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if (!\is_array($subject) && !\is_object($subject)) { |
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$msg = "Unable to get '$path': '%s' is of type " . \gettype($subject); |
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throw ResolveException::create($msg, $path, $delimiter, $index, $key); |
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} |
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try { |
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$subject = Helpers::descend($subject, $key, $exists); |
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3 |
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} catch (\Error $error) { |
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$msg = "Unable to get '$path': error at '%s'"; |
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throw ResolveException::create($msg, $path, $delimiter, $index, null, $error); |
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} |
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15 |
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if (!$exists) { |
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return null; |
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} |
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} |
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return $subject; |
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} |
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} |
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jasny /
dotkey
