Remove all non-numeric characters from a string; [^0-9] doesn't match as expected
PhpRegexStringPhone NumberSanitizationPhp Problem Overview
I'm trying to remove everything from a string but just numbers (0-9).
I thought this would work..
echo preg_replace("[^0-9]","",'604-619-5135');
But it echos "604-619-5135". What am I missing???
Php Solutions
Solution 1 - Php
Try this:
preg_replace('/[^0-9]/', '', '604-619-5135');
preg_replace uses PCREs which generally start and end with a /
.
Solution 2 - Php
This is for future developers, you can also try this. Simple too
echo preg_replace('/\D/', '', '604-619-5135');
Solution 3 - Php
You would need to enclose the pattern in a delimiter - typically a slash (/) is used. Try this:
echo preg_replace("/[^0-9]/","",'604-619-5135');
Solution 4 - Php
a much more practical way for those who do not want to use regex:
$data = filter_var($data, FILTER_SANITIZE_NUMBER_INT);
note: it works with phone numbers too.