1. Explain why you do not need to assign a 
specific data type to a variable when it is 
declared. 

in php the programminfg language is loosely typed,
which means the language decides the data in a 
variable.

2. Positive and negative numbers and 0 with 
no decimal places belong to which data type? 

integer (int)

3. Explain how you access the value of the 
second element in an array named $signs. 

$myArray = array();
$myValue = $myArray[1];

4. What function can be used to determine the 
total number of elements in an array? 

count($myArray);

5. Illustrate the value of using the print_r() function 
to return information about an array variable.

makesd it easy to format and print readable info for
people