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<?php // Outside of the application, e.g. DB or some storage. function addSomeIntegerFieldToDB($value) { $sql = 'INSERT INTO mytable (integer_field) VALUES (:int)'; // $st = $pdo->prepare($sql); // $st->execute(array('int' => $value); echo "executing query: ".str_replace(':int', $value, $sql)." \n"; } // the application: global $conditional; $conditional = true; class X { public function doSmth($id) { // Assertion will run independently of $conditional, thus preventing a wrong $id to be passed to ->doSmth() method assert(is_int($id), new \InvalidArgumentException('wot ar y doin')); global $conditional; if ($conditional) { addSomeIntegerFieldToDB($id); } } } $obj = new X; $obj->doSmth(13);
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.17 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
executing query: INSERT INTO mytable (integer_field) VALUES (13)

preferences:
155.17 ms | 404 KiB | 211 Q