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<?php $dbase = new PDO('sqlite::memory:'); $stmt = $dbase->prepare('SELECT 1=? AS result'); $stmt->execute(array(1)); echo '(INT == BOUNDINT) = ', ($stmt->fetchColumn() == 1 ? 'true' : 'false'), PHP_EOL; $stmt = $dbase->prepare('SELECT "1"=? AS result'); $stmt->execute(array(1)); echo '(STRING == BOUNDINT) = ', ($stmt->fetchColumn() == 1 ? 'true' : 'false'), PHP_EOL;
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.21, 7.4.0 - 7.4.10, 8.0.0alpha1 - beta3
(INT == BOUNDINT) = false (STRING == BOUNDINT) = true