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Is Class Meth

hphp/hack/manual/apis/Functions/HH/is_class_meth.md

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:::info[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. :::

Checks whether the input is a native class method pointer

Hack
namespace HH;

function is_class_meth(
  mixed $arg,
): bool;
HH\is_class_meth(Foo::bar<>); // true
HH\is_class_meth(bing<>); // false

Parameters

  • mixed $arg

Returns

  • bool
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