PHP Random Number

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PHP Random Number
Posted on: November 4, 2009 at 12:00 AM

PHP Random Number:In this tutorial you will learn about generation of random number in PHP. A random number is becoming more useful these days, like captcha, statistical sampling, cryptography

PHP Generate Random Numbers:

A random number is becoming more useful these days, like captcha, statistical sampling, cryptography, computer simulation etc. To generate random number, PHP provides rand() function.

General Format	int rand(void), int rand(int $min, int $max)
Parameters	$min: Minimum value	$max: Maximum value
Return Value	A random value

Example :

<?php

echo "rand() function will generate a random number as follows:".rand();

echo " Same rand() function could generate another random number as follows:".rand();

echo " rand() with parameter will generate a random number as follows:". rand(2,10);

First Output:

rand() function will generate a random number as follows:13638
Same rand() function could generate another random number as follows:13063
rand() with parameter will generate a random number as follows:2

Second Output (after refreshing the page):

rand() function will generate a random number as follows:14941
Same rand() function could generate another random number as follows:24530
rand()with parameter will generate a random number as follows:10

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