正则表达式如何从文本中删除所有LONG短划线/连字符和正常破折号？

Question

I am trying to remove long dashes and normal dashes from a text. I am able to remove the single normal dashes but I have problems with the long ones. I am also able to remove them, too, but then it causes problems with the numbers in the text.

For instance the text: asdasd2 34 56 ——————————————-

I do regex like [\u2014\-] and this removes all the long and normal dashes, but also removes all the numbers. [\-] removes the normal dash with no problems. Can anyone help with the correct regex? I want to remove all type of dashes in the text, and replace them with nothing. Thanks in advance

Answer 1

The snippet below could help you

<?php

$string = "asdasd2 34 56 ——————————————-";
$string = preg_replace("/(?:(?=—|\-).)+/", "", $string);
echo $string; // asdasd2 34 56

?>

The two expressions below should also replace all kind of hypens

[\p{Pd}]+
[\x{2010}-\x{2015}|\x{002D}|\x{2212}|\x{FE58}|\x{FE63}|\x{FF0D}]+

but for some reason I'm getting an error or a string with this weird character (�). That's how I came up with the first solution.