Helo, I’ve this RegEx to delete double letter on a string : <? $string

Question

Editorial Team

Asked: June 2, 20262026-06-02T01:23:49+00:00 2026-06-02T01:23:49+00:00

Helo,

I’ve this RegEx to delete double letter on a string :

<?
$string = "Heeeeelloo";
echo preg_replace( '`(.*)\1`', '$1',$string)."\n";

The current result is : Heeelo

But i would like this result : Helo

What’s wrong ?
Thanks

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Editorial Team · Answer 1 · 2026-06-02T01:23:51+00:00

Editorial Team

Just do:

preg_replace( '`(.)\1+`', '$1',$string);

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