PHP - Stats Rand Ranf() Function

Definition and Usage

The stats_rand_ranf() function can generate a random floating-point number between 0 and 1.

Syntax

  float stats_rand_ranf( void )

Return Values

The stats_rand_ranf() function can return a random floating point number from a uniform distribution between 0 (exclusive) and 1 (exclusive).

Dependencies

This function was first introduced in statistics extension (PHP 4.0.0 and PEAR 1.4.0). We have used latest release of stats-2.0.3 (PHP 7.0.0 or newer and PEAR 1.4.0 or newer) for this tutorial

Example

In the following example, we generate a random floating point number and check if its float and ranges between 0 and 1.

<?php
   $r = stats_rand_ranf();
   var_dump(is_float($r));
   var_dump(0 <= $r && $r < 1);
?>

Output

This will produce following result −

bool(true)
bool(true)