PHP implementation of the 99 multiplication table concise version

This article mainly introduces the PHP implementation of the 99 multiplication table concise version, code simple and easy to understand, you can use to answer the questions oh, need friends can refer to the

99 multiplication table is also a lot of interview test procedures, to examine the PHP interviewer's logical thinking ability, is mainly the understanding of the algorithm and application, the following is a small series of PHP written in the output of 99 multiplication formula PHP code:

For ($i =1 $i <=9; $i + +)

{

for ($j =1; $j <= $i; $j + +)

{

echo "$i * $j =". $i * $j.

}

Echo '

';

}

?>

After seeing, is not very simple, is two loops, the outer control loop line number, the inner layer controls each line to enter the number of formulas.

Screenshot of output result: