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<?php
declare( strict_types=1 );
namespace WMDE\Fundraising\AddressChangeContext;
/**
* This class converts "mixed" values from libraries like Doctrine or Symfony into scalar values, without tripping up
* PHPStan, which disallows calling "strval" and "intval" on variables with "mixed" type, because calling them
* with objects or arrays will generate a warning.
*
* DO NOT USE THIS IN LOOPS! (E.g. iterating over database results).
* The constant type checking will slow down the application, use PHPStan-specific comments to ignore this error instead:
* https://phpstan.org/user-guide/ignoring-errors
* Hopefully, in the future libraries will return fewer "mixed" types. Please check from time to time if this class is still needed.
* Check the usage of the class methods to detect libraries that return mixed.
*/
class ScalarTypeConverter {
public static function toInt( mixed $value ): int {
return intval( self::assertScalarType( $value ) );
}
public static function toString( mixed $value ): string {
return strval( self::assertScalarType( $value ) );
private static function assertScalarType( mixed $value ): int|string|bool|float {
if ( is_scalar( $value ) ) {
return $value;
throw new \InvalidArgumentException( "Given value is not a scalar type" );
wmde /
fundraising-address-change
