Bug #76197 [Com]: White space not returned by substr

Edit report at https://bugs.php.net/bug.php?id=76197&edit=1 ID: 76197 Comment by: laurent dot couraud at c2n dot upsaclay dot fr Reported by: laurent dot couraud at c2n dot upsaclay dot fr Summary: White space not returned by substr Status: Feedback Type: Bug Package: Strings related Operating System: Windows PHP Version: 7.2.4 Block user comment: N Private report: N New Comment: Oops! Good point. this is not a bug in PHP but in xdebug. Sorry for the noise. Previous Comments: ------------------------------------------------------------------------ [2018-04-08 16:07:50] peehaa@php.net How did you test this behavior? As I get the expected result: https://3v4l.org/RQ8EM <?php $string = 'a b'; $c1 = substr($string, 1, 1); $c2 = mb_substr($string, 1, 1); $c3 = iconv_substr($string, 1, 1); var_dump($c1, $c2, $c3); ------------------------------------------------------------------------ [2018-04-08 16:03:12] laurent dot couraud at c2n dot upsaclay dot fr Description: ------------ all string related function i did test (substr, mb_substr, iconv_substr) return a empty string when the result should be one space character. Test script: --------------- // Source code saved in UTF-8 encoding. $string = 'a b'; $c1 = substr($string, 1, 1); $c2 = mb_substr($string, 1, 1); $c3 = iconv_substr($string, 1, 1); // then we obtain: // $c1 == $c2 == $c3 == "" // instead of // $c1 == $c2 == $c3 == " " ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=76197&edit=1