PHP

Question

What is the different between print and print_r(); ?

Answer 1

The print_r() function is a built-in function in PHP and is used to print or display information stored in a variable.
where echo, print also used for same purpose

Answer 2

print_r : - outputs human-readable representation of any one value.
            - outputs an array showing keys and values.
            - has a return type.(can be used in an expression).
            - takes not just string but any value.
echo : - prints a string or a concatenated string
          - doesnt have a return type

print_r recursively prints an array , showing all keys and values,while echo doesn't, and is intended for scalar values

Answer 3

Yeah right but what is the main different between ?

Answer 4

print_r can display array
While print cannot
$arr=[1, 2,3] ;
print_r($arr) ;//no error and will show array

print($are) ;//shows errror