__toString
Note
This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information.
Returns the string version of the current Pair, which is "Pair"
public function __toString(): string;
Returns
string- Thestring"Pair".
Examples
The string version of a Pair is always "Pair":
$p = Pair {-1, 5};
echo $p->__toString()."\n";
$p2 = Pair {'foo', 'bar'};
echo $p2->__toString()."\n";