How to code this in php? Help me please ty

Question

Insert a number the the ouput must be

Output:
1 2 3 string 5 6 string string 9 10

Number 4,7 and 8 must chang into string

Answer 1

The strval() function is an inbuilt function in PHP and is used to convert any scalar value (string, integer, or double) to a string. We cannot use strval() on arrays or on object, if applied then this function only returns the type name of the value being converted. Return value: This function returns a string.

Now you can try to make it by own!

Try it, All the Best!