使用正则表达式删除字符串中的字符串

Question

I would like to remove a part of a string like in the example below (with a regex and preg_replace) :

abcd,{{any_word |same_word_but_to_keep}},efg...

Result should be :

abcd,{{same_word_but_to_keep}},efg...

Any idea?

---

Another example :

Bellevue,Bergouey |Bergouey(tokeep),Bourdious

Results should be :

Bellevue,Bergouey,Bourdious

Thanks a lot!!

Answer 1

You could use the following regex:

$str = 'Bellevue,Bergouey |Bergouey,Bourdious';
$str = preg_replace('~(\w+)\s*\|(\1)~', '$2', $str);
echo $str; //=> "Bellevue,Bergouey,Bourdious"