PHP rand() Function
 Complete PHP Math Reference
Definition and Usage
The rand() function generates a random integer.
If this function is called without parameters, it returns a random
integer between 0 and RAND_MAX.
If you want a random number between 10 and 100 (inclusive), use rand
(10,100).
Syntax
| Parameter |
Description |
| min,max |
Optional. Specifies the range the random number should lie
within |
Tips and Notes
Note: On some platforms (such as Windows) RAND_MAX is only 32768. So,
if you require
a range larger than 32768, you can specify min and max, or use the mt_rand()
function instead.
Note: In PHP 4.2.0 and later, there is no need to seed the random generator with srand().
This is done automatically.
Tip: The mt_rand() function generates a better random value than this function!
Example
In this example we will return some random numbers:
<?php
echo(rand() . "<br />");
echo(rand() . "<br />");
echo(rand(10,100))
?>
|
The output of the code above could be:
Complete PHP Math Reference
Make your web applications look like a million bucks
|
|
Most web applications today use boring methods to present data to their viewers using grids or simple HTML tables. FusionCharts induces "life" into the web applications by converting monotonous data into lively charts, gauges & maps.
FusionCharts works with all technologies like ASP, ASP.NET, PHP, ColdFusion, Ruby on Rails, JSP, HTML pages etc.
and connects to any database to render animated & interactive charts. It takes less than 15 minutes and no expertise
whatsoever to build your first chart and just a glance of it to captivate your audience. This fact is endorsed by our
12,000 customers and 150,000 users which include a majority of the Fortune 500 companies.
And yeah, your applications could look like a million bucks by spending just $69.
So go ahead, download your
copy of FusionCharts and start "wow-ing" your customers now!
|
 |
W3Schools' Online Certification Program
The perfect solution for professionals who need to balance work, family, and career building.
More than 4000 certificates already issued!
|
The HTML Certificate documents your knowledge of HTML, XHTML, and CSS.
The JavaScript Certificate documents your knowledge of JavaScript and HTML DOM.
The XML Certificate documents your knowledge of XML, XML DOM and XSLT.
The ASP Certificate documents your knowledge of ASP, SQL, and ADO.
The PHP Certificate documents your knowledge of PHP and SQL (MySQL).
|
