String to Float

[MadTechie]

Just a quick one here

 

i have a string entered by the user, which is a currency ie £10.50

 

now the problem is if i add 0.10 to that and it messes up..

 

 

now i could write my own routine but wonder if someone had a snippet or a easy/better way of doing this

 

of course i would prefer the formatting to be done by money_format,

 

heres some example code

<?php
$cash = 10.50;
$cash += .10;
echo "$cash<br />";
//result = 10.6

setlocale(LC_MONETARY, 'en_UK');
$cash = 10.50;
$cash += .10;
$cash = money_format('%=.2i', $cash);
echo "$cash<br />";
//result = 10.60  <--- Well of course thats worked 


// BUT WHAT ABOUT THESE
$cash = "£10.50";
$cash += .10;
echo "$cash<br />";
//result = 0.1 

$cash = "50p";
$cash += .10;
echo "$cash<br />";
//result = 50.1


setlocale(LC_MONETARY, 'en_UK');
$cash = "£10.50";
$cash += "0.10";
$cash = money_format('%=.2i', $cash);
echo "$cash<br />";
//result = 0.10

setlocale(LC_MONETARY, 'en_UK');
$cash = "50p";
$cash += "0.10";
$cash = money_format('%=.2i', $cash);
echo "$cash<br />";
//result = 50.10

?>

 

 

basically can i convert "£10.50" into 10.50

 

would be nice to have 50p to 0.50 as well 

[joquius]

Hmm

$str = preg_replace ("/[^0-9]([0-9]+)/", "$1", $str); // for pounds

$str = preg_replace ("/([0-9]{1,2})[^0-9]/", "0.$1", $str); // for pence

 

This is of course assuming the format will be pound(digits) (digits)pence

[MadTechie]

thanx for the reply joquius, i have been working on a routine using regexp to convert currency to a float but it seams to be more complex by the minute, i'll post my final draft and hope someone can clean it up