[SOLVED] decimal function

[ballhogjoni]

Does anyone know of a decimal function. Basically I want to have the script replace the decimal point as follows:

 

someone inputs 10% into a field and I want the script to place a decimal point like this, .10 so I can do some math with it.

[recklessgeneral]

Hi,

 

The following code will take strip the percent sign from the given string, remove any whitespace and cast the value to an integer. Here, I divide by 100 when printing out, but you can store it in another variable or whatever.

 

<?php
$percent = "15%";
$num = (int) trim(str_replace ('%', '', $percent));
echo "Percentage is " . ($num / 100);
?>

 

You'd probably want to verify that the variable passed in to str_replace was of the correct format, probably by using regular expressions or something. You may want to change the cast from an int to a float, if that's valid input.

 

Cheers,

Darren.

[Barand]

As the numeric value of a string is the value of any numeric digits prior to the first non-numeric character, then

 

<?php
$percent = "15%";
echo $percent/100;         // 0.15
?>