The expression return $this->combinePlugins() returns the type array<integer,string> which is incompatible with the return type mandated by Yansongda\Pay\Contract\S...Interface::getPlugins() of Yansongda\Pay\Contract\PluginInterface[].
In the issue above, the returned value is violating the contract defined by the
mentioned interface.
Let's take a look at an example:
interfaceHasName{/** @return string */publicfunctiongetName();}className{public$name;}classUserimplementsHasName{/** @return string|Name */publicfunctiongetName(){returnnewName('foo');// This is a violation of the ``HasName`` interface// which only allows a string value to be returned.}}
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}
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if (method_exists($this, $typeMethod)) {
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return $this->{$typeMethod}();
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}
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throw new InvalidParamsException(Exception::SHORTCUT_QUERY_TYPE_ERROR, "Query type [$typeMethod] not supported");
In the issue above, the returned value is violating the contract defined by the mentioned interface.
Let's take a look at an example: