Hello friends,

Today we learn how to generate a random number in PHP. In PHP, following function are used to generate random numbers.

• rand():
  rand() function is used to display a random number.
  Syntax:

  rand();

  Or you can also write the syntax as follows:

  rand(min,max);

  In above function two parameter are there:
  - min: It is a optional parameter. min is the minimum number that is returned by the function. Default value is 0.
  - max: max is also an optional parameter. It is the maximum value of number that is returned by the function. Default value is getrandmax().
• mt_rand():
  mt_rand() function is also used to display the random number with the help of Mersenne Twister algorithm. It execute 4 times faster than the rand() function and also produce better random number.
  Syntax:

  mt_rand();

  or you can write the syntax as follows:

  mt_rand(min,max);

  In above function two parameter are there:
  - min: It is a optional parameter. min is the minimum number that is returned by the function. Default value is 0.
  - max: max is also an optional parameter. It is the maximum value of number that is returned by the function. Default value is getrandmax().