PHP preg_match is mismatching a curly apostrophe with other types of curly quotes. How to avoid?
php, regex, unicode
Solution
This is because the "fancy" apostrophe you're using inside the character set is treated in its binary form; you need to enable Unicode mode using its respective modifier:
preg_match_all('/([a-zA-Z0-9’]+)/u', $content_content, $matches)
Demo
Problem
I have the following variable content: `$content_content = '“I can’t do it, she said.”';` I want to do a preg_match for every "word" in that, including the contractions, so I use preg_match as follows: ``` if (preg_match_all('/([a-zA-Z0-9’]+)/', $content_content, $matches)) { echo '<pre>'; print_r($matches); echo '</pre>'; } ``` However, it seems by including ’ in the regular expression, it's also trapping the curly double quotes, as the above command outputs: ``` Array ( [0] => Array ( [0] => �� [1] => I [2] => can’t [3] => do [4] => it [5] => she [6] => said [7] => �� ) [1] => Array ( [0] => �� [1] => I [2] => can’t [3] => do [4] => it [5] => she [6] => said [7] => �� ) ) ``` How can I include ’ without it also including the “ and ”?