diff --git a/reference/var/functions/is-callable.xml b/reference/var/functions/is-callable.xml index deb36c0cf7..e072e77fc4 100644 --- a/reference/var/functions/is-callable.xml +++ b/reference/var/functions/is-callable.xml @@ -1,11 +1,11 @@ - + is_callable - Find out whether the argument is a valid callable construct + Verify that the contents of a variable can be called as a function @@ -17,55 +17,76 @@ stringcallable_name - &warn.undocumented.func; + Verify that the contents of a variable can be called as a function. + This can check that a simple variable contains the name of a valid + function, or that an array contains a properly encoded object and + function name. - + +