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<?php |
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/** |
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* This file is part of Cycle ORM package. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace Cycle\Database\Query; |
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use Cycle\Database\Injection\ParameterInterface; |
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use DateTimeInterface; |
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/** |
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* Simple helper class used to interpolate query with given values. To be used for profiling and |
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* debug purposes only. |
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*/ |
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final class Interpolator |
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{ |
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/** |
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* Injects parameters into statement. For debug purposes only. |
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* |
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* @psalm-param non-empty-string $query |
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* |
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* @psalm-return non-empty-string |
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*/ |
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3730 |
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public static function interpolate(string $query, iterable $parameters = []): string |
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{ |
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3730 |
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if ($parameters === []) { |
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3724 |
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return $query; |
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} |
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['named' => $named, 'unnamed' => $unnamed] = self::normalizeParameters($parameters); |
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2026 |
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$params = self::findParams($query); |
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2026 |
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$caret = 0; |
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$result = ''; |
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foreach ($params as $pos => $ph) { |
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$result .= \substr($query, $caret, $pos - $caret); |
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$caret = $pos + \strlen($ph); |
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// find param |
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$result .= match (true) { |
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$ph === '?' && \count($unnamed) > 0 => self::resolveValue(\array_shift($unnamed)), |
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2022 |
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\array_key_exists($ph, $named) => self::resolveValue($named[$ph]), |
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2022 |
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default => $ph, |
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}; |
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} |
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$result .= \substr($query, $caret); |
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return $result; |
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2026 |
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} |
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/** |
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* Get parameter value. |
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* |
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* @psalm-return non-empty-string |
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*/ |
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private static function resolveValue(mixed $parameter): string |
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2026 |
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{ |
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if ($parameter instanceof ParameterInterface) { |
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return self::resolveValue($parameter->getValue()); |
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} |
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switch (gettype($parameter)) { |
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2026 |
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case 'boolean': |
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2026 |
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return $parameter ? 'TRUE' : 'FALSE'; |
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case 'integer': |
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return (string)($parameter + 0); |
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590 |
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case 'NULL': |
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return 'NULL'; |
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case 'double': |
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2026 |
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return sprintf('%F', $parameter); |
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case 'string': |
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2026 |
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return "'" . addcslashes($parameter, "'") . "'"; |
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2026 |
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case 'object': |
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if (method_exists($parameter, '__toString')) { |
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return "'" . addcslashes((string)$parameter, "'") . "'"; |
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} |
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if ($parameter instanceof DateTimeInterface) { |
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return "'" . $parameter->format(DateTimeInterface::ATOM) . "'"; |
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} |
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} |
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return '[UNRESOLVED]'; |
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} |
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/** |
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* @return array<int, string> |
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*/ |
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private static function findParams(string $query): array |
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{ |
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\preg_match_all( |
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'/(?<dq>"(?:\\\\"|[^"])*")|(?<sq>\'[^\']*\')|(?<ph>\\?)|(?<named>:[a-z_]+)/', |
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$query, |
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$placeholders, |
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PREG_OFFSET_CAPTURE|PREG_UNMATCHED_AS_NULL |
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); |
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$result = []; |
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2022 |
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foreach ([...$placeholders['named'], ...$placeholders['ph']] as $tuple) { |
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if ($tuple[0] === null) { |
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continue; |
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} |
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$result[$tuple[1]] = $tuple[0]; |
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} |
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2022 |
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\ksort($result); |
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2022 |
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return $result; |
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} |
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/** |
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* @return array{named: array, unnamed: array} |
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*/ |
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private static function normalizeParameters(iterable $parameters): array |
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{ |
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$result = ['named' => [], 'unnamed' => []]; |
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foreach ($parameters as $k => $v) { |
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if (\is_int($k)) { |
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$result['unnamed'][$k] = $v; |
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} else { |
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$result['named'][':' . \ltrim($k, ':')] = $v; |
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} |
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} |
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return $result; |
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} |
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} |
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cycle /
database
