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PromiseInterface:: (1 method):
then()
Interface: PromiseInterface - X-Ref
| then(callable $onFulfilled = null, callable $onRejected = null, callable $onProgress = null) X-Ref |
| Transforms a promise's value by applying a function to the promise's fulfillment or rejection value. Returns a new promise for the transformed result. The `then()` method registers new fulfilled and rejection handlers with a promise (all parameters are optional): * `$onFulfilled` will be invoked once the promise is fulfilled and passed the result as the first argument. * `$onRejected` will be invoked once the promise is rejected and passed the reason as the first argument. * `$onProgress` (deprecated) will be invoked whenever the producer of the promise triggers progress notifications and passed a single argument (whatever it wants) to indicate progress. It returns a new promise that will fulfill with the return value of either `$onFulfilled` or `$onRejected`, whichever is called, or will reject with the thrown exception if either throws. A promise makes the following guarantees about handlers registered in the same call to `then()`: 1. Only one of `$onFulfilled` or `$onRejected` will be called, never both. 2. `$onFulfilled` and `$onRejected` will never be called more than once. 3. `$onProgress` (deprecated) may be called multiple times. param: callable|null $onFulfilled param: callable|null $onRejected param: callable|null $onProgress This argument is deprecated and should not be used anymore. return: PromiseInterface |
| Generated: Wed Nov 11 20:33:01 2020 | Cross-referenced by PHPXref 0.7.1 |