[SOLVED] rand() help

[almightyegg]

is there any way to get a random value with decimals??

 

eg. rand(45.21, 56.89) = 51.34

[Philip]

As taken from a php.net comment:

<?php
function random_float ($min,$max) {
   return ($min+lcg_value()*(abs($max-$min)));
}
echo random_float(1,7);
?>

 

You could then take it to whatever decimal you wanted.

[almightyegg]

I know have 108.411944095 hehe, how would I change it to 2 dp?

[Philip]

<?php
function random_float ($min,$max) {
   return ($min+lcg_value()*(abs($max-$min)));
}
echo round(random_float(1,7),2);
?>

 

There is probably a better way, but that's just one way

[Cal]

Use round();

 

round([number], [decimalplaces])

[almightyegg]

oh yeah! duh thanks