EDIT - SOLVED:
Thanks for the responses - I learned that this is actually in serialised format and that there's no need to process it using RegEx.
Apologies for the newb question - and I have tried many many variations, based on StackOverflow answers with no luck. I've also spent a while experimenting with an online Regex tool to try and solve this myself.
This is the string I'm checking :
i:0;s:1:"1";i:1;s:1:"3";i:2;s:1:"5";i:3;s:1:"6";
I'll settle for matching these strings :
i:0;s:1:"1";
i:1;s:1:"3";
i:2;s:1:"5";
i:3;s:1:"6";
But ideally I would like to capture all the values between quotes only.
(there could be anywhere between 1-10 of these kinds of entries)
i.e. regex_result = [1,3,5,6]
These are some of the regexes I've tried. I've only been able to either capture the first match, or the last match, but not all matches - I'm confused as to why the regex isnt "repeating" as I'd expected:
(i:.;s:1:".";)*
(i:.;s:1:".";)+
(i:.;s:1:".";)+?
Thanks
You need to use \G so that it would get the number within double quotes which was preceded by i:.;s:1:"(Here the dot after i: represents any character). The anchor \G matches at the position where the previous match ended.
<?php
$string = 'i:0;s:1:"1";i:1;s:1:"3";i:2;s:1:"5";i:3;s:1:"6";';
echo preg_match_all('~(?:i:.;s:1:"|(?<!^)\G)(.)(?=";)~', $string, $match);
print_r($match[1]);
?>
Output:
4Array
(
[0] => 1
[1] => 3
[2] => 5
[3] => 6
)