I want to find out if a function is called with an integer or a string containing an integer.

The best solution is to stop wanting that.

Generally speaking, a function which expects a number shouldn't care whether the number was supplied as a string or not, and a function which expects a string shouldn't care if you neglected to wrap a numeric-looking string in the proper quote marks.

If your function can be given either a number or a string and is supposed to do different things with each, consider rewriting it into two different functions, so the caller can choose which behaviour they want.

toby döt ink

In reply to Re: Distiguishing arguments: number-strings vs real integer by tobyink
in thread Distiguishing arguments: number-strings vs real integer by LanX

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