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<?php // prelim $object = new stdClass; $object->field = 10; $param = new stdClass; $param->object = $object; // ternary variant $field = !($param && $param->object)?: $param->object->field; echo $field,"\n"; // alternative to ANDing $field = get_object_vars( $param->object )["field"] ?? null; echo $field,"\n";
Output for 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
10 10
preferences:
97.87 ms | 1357 KiB | 4 Q