The log() function Returns the natural logarithm of a number.
Syntax
log(num, base)
Parameters
num − The value for which you want to calculate the logarithm
base − The logarithmic base
Return
The log() function Returns the natural logarithm of a number.
Example
<?php echo(log(1)); ?>
Output
0
Example
Let us see another example −
<?php echo(log(0)); ?>
Output
-INF
Example
Let us see another example −
<?php echo(log(10)); echo(log(2.7)); ?>
Output
2.3025850929940.99325177301028