How would you add 1 to the variable $count?Select one:a.  incr count;           b.  $count =+1                       c. $count++;  d.  incr $count;

What is the correct way to add 1 to the $count variable?Question 30Select one:a.++countb.count++;c.$count =+d.$count++;

Which of the following is not a valid way to increment a variable in PHP?$var++;++$var;$var += 1;$var =+ 1

Which of the following function returns the number of characters in a string variable?A.count($variable)B.len($variable)C.strcount($variable)D.strlen($variable)

Question 3You write a SQL query that will count values in a specified range. Which function should you include in your query to only count each value once, even if it appears multiple times?

Which of the following is/are correct way(s) to increment variable p?  Tick all correct answer(s).  No partial marks and no negative marks.Select one or more:p++p=p+1p+++p