PHP lcg_value() Function

Definition and Usage

The lcg_value() function generates a random number between 0 and 1.

LCG stands for linear congruential generator. This generator generates a sequence of pseudo-randomized numbers calculated with a discontinuous piecewise linear equation. This is one of the oldest pseudorandom number generator algorithms

Syntax

lcg_value ( void ) : float

Parameters

Return Values

PHP lcg_value() function returns a pseudo random float value between 0.0 and 1.0, inclusive.

PHP Version

This function is available in PHP versions 4.x, PHP 5.x as well as PHP 7.x.

Example

<?php
   echo "lcg_value() = " . lcg_value() . "
";
   echo "lcg_value() = " . lcg_value();
?>

Output

This may produce following result −

lcg_value() = 0.45920201711279
lcg_value() = 0.18118693614628