CODEWITHSUNDEEP
phpregex
s_p
s_p

Reputation: 4693

PHP capture word that contains special char from string using RegEx

I have special words in a string that i would like to capture based on the prefix.
Example Special words such as ^to_this should be caught.
I would need the word this because of the special prefix ^to_.
Here is my attempt but it is not working

preg_match('/\b(\w*^to_\w*)\b/', $str, $specialWordArr);

but this returns an empty array

Upvotes: 0

Views: 140

Answers (2)

Avinash Raj
Avinash Raj

Reputation: 174874

Your code would be,

<?php
$mystring = 'Special words such as ^to_this should be caught';
$regex = '~[_^;]\w+[_^;](\w+)~';
if (preg_match($regex, $mystring, $m)) {
    $yourmatch = $m[1]; 
    echo $yourmatch;
    }
?>  //=> this

Explanation:

  • [_^;] Add the special characters into this character class to ensure that the begining of a word would be a special character.
  • \w+ After a special character, there must one or more word characters followed.
  • [_^;] Word characters must be followed by a special character.
  • (\w+) If these conditions are satisfied, capture the following one or more word characters into a group.

Upvotes: 2

cOle2
cOle2

Reputation: 4784

Without some additional examples this will work for what you've posted:

$str = 'Special words such as ^to_this should be caught';   

preg_match('/\s\^to_(\w+)\s/', $str, $specialWordArr);

echo $specialWordArr[1]; //this

Upvotes: 1

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