HH\Pair::takeWhile

Returns an ImmVector containing the values of the current Pair up to but not including the first value that produces false when passed to the specified callback

public function takeWhile(
  (function(mixed): bool) $callback,
): ImmVector<mixed>;

Parameters

• (function(mixed): bool) $callback - The callback that is used to determine the stopping condition.

Returns

• ImmVector<mixed> - An ImmVector that contains the values of the current Pair up until the callback returns false.