Bug #81695 [Opn->Nab]: substring issue

Edit report at https://bugs.php.net/bug.php?id=81695&edit=1 ID: 81695 Updated by: cmb@php.net Reported by: felipeg at hemodynamics dot cl Summary: substring issue -Status: Open +Status: Not a bug Type: Bug Package: *Unicode Issues Operating System: linux, macos PHP Version: 7.3.33 -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: Sorry, but your problem does not imply a bug in PHP itself. For a list of more appropriate places to ask for help using PHP, please visit http://www.php.net/support.php as this bug system is not the appropriate forum for asking support questions. Due to the volume of reports we can not explain in detail here why your report is not a bug. The support channels will be able to provide an explanation for you. Thank you for your interest in PHP. See <https://3v4l.org/FFte1> and <https://3v4l.org/Zv0oj>, and read up on character encodings. Previous Comments: ------------------------------------------------------------------------ [2021-12-03 16:00:49] felipeg at hemodynamics dot cl Description: ------------ --- From manual page: https://php.net/function.substr --- I tested this problem on linux server, macOs and debian 9.9. it looks like when substr evaluate "ñó", php translate as ?> and shows no output. Test script: --------------- echo substr("Diagnóstico: Infección del muñón, infracondilea izquierda\n", 0, 34); echo substr("Diagnóstico: Infección del muñón, infracondilea izquierda\n", 0, 34); Expected result: ---------------- Diagnóstico: Infección del muñ?Diagnóstico: Infección del muñ?Diagnóstico: Infección del muñ?Diagnóstico: Infección del muñ? Actual result: -------------- Diagnóstico: Infección del muñ?Diagnóstico: Infección del muñ? ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=81695&edit=1