PHP Doctrine\MongoDB\Aggregation Expr::substr - 1 examples found. These are the top rated real world PHP examples of Doctrine\MongoDB\Aggregation\Expr::substr extracted from open source projects. You can rate examples to help us improve the quality of examples.
The arguments can be any valid expression as long as long as the first argument resolves to a string, and the second and third arguments resolve to integers.
See also:
http://docs.mongodb.org/manual/reference/operator/aggregation/substr/