dotty dotty - 27 days ago 9
PHP Question

stripping out all characters from a string, leaving numbers

Hay, i have a string like this:

v8gn5.8gnr4nggb58gng.g95h58g.n48fn49t.t8t8t57


I want to strip out all the characters leaving just numbers (and .s)

Any ideas how to do this? Is there a function prebuilt?

thanks

Don Don
Answer Source
$str = preg_replace('/[^0-9.]+/', '', $str);

replace substrings that do not consist of digits or . with nothing.