__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 Vector, which is "Vector"
public function __toString(): string;
Returns
string- The string"Vector".
Examples
The string version of an ImmVector is always "ImmVector":
$iv = ImmVector {1, 2, 3};
echo $iv->__toString()."\n";
$iv2 = ImmVector {'a', 'b', 'c'};
echo $iv2->__toString()."\n";
$iv3 = ImmVector {};
echo $iv3->__toString()."\n";