PHP log() function
Definition and Usage
log() returns the natural logarithm.
Syntax
log(x,base)
| Parameter | Description |
|---|---|
| x | Required. A number. |
| base | Optional. If the parameter is specified, it returns logbasex. |
Description
If the optional parameter is specified base, log() returns logbasex, otherwise log() returns the parameter x of the natural logarithm.
Note:The parameter base has been available since PHP 4.3.0. You can calculate the logarithm of any number n with base b, but actually it uses the mathematical formula: logb(n) = log(n)/log(b), where log is the natural logarithm.
Example
<?php echo lcg_value(); ?>
Output similar to:
0.508212039328
