(PHP 4 >= 4.1.0, PHP 5)
log1p — Returns log(1 + number), computed in a way that is accurate even when the value of number is close to zero
$number
   )
   log1p() returns log(1 +
   number) computed in a way that is accurate even
   when the value of number is close to zero.
   log() might only return log(1) in this case
   due to lack of precision.
  
numberThe argument to process
   log(1 + number)
  
| Version | Description | 
|---|---|
| 5.3.0 | This function is now available on all platforms |