how to

[urgido]

how i can to define this code into a variable?

srand ((double) microtime( )*1000000);
$random_number = rand( ); 

where $random_number is a variable to call like this:

<b>$random_number</b>

[Twey]

I don't understand you. "Define this code into a variable?" You mean you want to create a function? And the way you use that variable - short of a here-document - is never going to work. You want:

<b><?php echo($random_number); ?></b>

[urgido]

I need to create this code in a so called variable <module:randomnumber> for then to be able to integrate with javascript. regards

example:

<SCRIPT>ppreview('http://www.google.com','<module:randomnumber>')</SCRIPT> 
<SCRIPT>potherfunctions('http://www.google.com','<module:randomnumber>', '')</SCRIPT>

[Twey]

<SCRIPT>ppreview('http://www.google.com','<?php echo($random_number); ?>')</SCRIPT>
<SCRIPT>potherfunctions('http://www.google.com','<?php echo($random_number); ?>', '')</SCRIPT>

PHP and Javascript work at very different levels to one another, and the only way to pass a variable from PHP to Javascript is to echo it straight into the Javascript code.