How to construct a string based on regex and related parameters in PHP?
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Published on 2010-03-10T17:09:48Z
Indexed on
2010/03/21
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(?P<id>\d*)(/(?P<title>.*))?
Most of the time,we use regex to match something,but how to generate the matching string if we have id
and title
already?
Example,if id=4
and title='hello world'
,the result should be:
4/hello world
But if we only have id=4
,it should be:
4
Because as the regex indicates,title
is optional.
Two answers both misunderstood...
There is no preg_match
yet
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