how can i clean chrs that are not numbers and live only number

[pelegk1]

i have this string :
"5d2e1fe"
and i want to get only : "521"
how can i do it?
thanks in advance
peleg

[YoN]

Try this:

<?php
$variablee = "125sdf6fsg74d5f4ghADFH5dfh";
$result = preg_replace("/[^1-9]/", "", $variablee);
echo $result;
?>

HTH

[pyro]

You might want to simplify and use:

$result = preg_replace("/\\D/", "", $variablee);

[YoN]

Ohh! nice to know that :D
Thanks Pyro

[pyro]

No problem... :p

[pelegk1]

the result to contain all number and a dot (.) ?

[pyro]

$result = preg_replace("/[^\.\d]/", "", $variablee);