Are optional arguments possible in C# functions?
33913
How can you use optional parameters in C#?
11286
Can a variable number of arguments be passed to a function?
83354
Nullable types: better way to check for null or zero in c#
81578
How do you create optional arguments in php?
107396
Bare asterisk in function arguments?
18538
Optional parameter in newcommand
72622
Does Java support default parameter values?
121069
A curious C# syntax with a question mark
36791
C# 4.0, optional parameters and params do not work together
143342
SQL function as default parameter value?
68737
Is there a VB.NET equivalent for C#'s '??' operator?
90161
What does [param: NotNull] mean in C#?
62316
Named arguments call in C# with variable parameter number
13109
Null or default comparison of generic argument in C#
14146
Pass Method as Parameter using C#
136606
Default value of function parameter
93409
Any way to specify optional parameter values in PHP?