How to i replace regex patterns using preg_replace function?

Question

I have url like below

/test/(?<name>\w+)/(?<id>\d+)/

I want to replace it using preg_replace() function like this

/test/name/(?<id>\d+)/

I tried this but it does not work as i expected.

$subject = '/test/(?<name>\w+)/(?<id>\d+)/';

preg_replace('#\(.*\<name\>.*\)#', 'name', $subject);

This question seems unclear to me. Do your input strings contain named capture groups? and you are trying to match regex patterns? What is the coding intent/logic here? What is the desired final result? I don't get it. — mickmackusa
– mickmackusa ♦, Commented Mar 5, 2018 at 2:12
@mixmackusa Actually this is a route "/test/(?<name>\w+)/(?<id>\d+)/" that i used in a RouteCollectton class which i want to replace regex groups to generate url like this. /test/{name}/{id} So this regex function preg_replace('#(.*\<name\>[^)]+)#', 'name', $subject); convert route arguments to real url with provided parameters e.g. /test/name/54 the solution is below — Ersin Güvenç
– Ersin Güvenç, Commented Mar 5, 2018 at 10:52

Syscall · Accepted Answer · 2018-03-03 16:51:27Z

1

You could take all the characters until the next ")" using [^)]+.

$subject = '/test/(?<name>\w+)/(?<id>\d+)/';
$subject = preg_replace('#\(.*\<name\>[^)]+\)#', 'name', $subject);
echo $subject;

Outputs :

/test/name/(?<id>\d+)/

answered Mar 3, 2018 at 16:51

Syscall

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1 Comment

Ersin Güvenç Over a year ago

Yes it works fine ! This is the pattern for id ([^)]+\<id\>[^)]+). i added to same pattern to beginning of the regex to prevent replacement of (?<name>\w+). Many Thanks :)

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