Bug->Doc #80626 [Opn->Fbk]: Passing 'pass' to mb_convert_encoding()'s $from_encoding not working since 7.3

Edit report at https://bugs.php.net/bug.php?id=80626&edit=1 ID: 80626 Updated by: requinix@php.net Reported by: powtac at gmx dot de Summary: Passing 'pass' to mb_convert_encoding()'s $from_encoding not working since 7.3 -Status: Open +Status: Feedback -Type: Bug +Type: Documentation Problem -Package: Documentation problem +Package: mbstring related Operating System: Linux PHP Version: 7.4.14 Block user comment: N Private report: N New Comment: Were the docs changed at the same time as 7.3.0? Because according to what it says now, "pass" is only allowed for a php.ini setting. It means not to perform any conversion at all, and it doesn't make sense to support that in normal function calls. Previous Comments: ------------------------------------------------------------------------ [2021-01-14 18:39:31] powtac at gmx dot de Description: ------------ According to the docs 'pass' is an option for the third parameter of mb_convert_encoding() (https://php.net/function.mb-convert-encoding), see https://www.php.net/manual/en/mbstring.supported-encodings.php where it says: "Any php.ini entry which accepts an encoding name can also use the values "auto" and "pass". mbstring functions which accept an encoding name can also use the value "auto". If "pass" is set, no character encoding conversion is performed." But actually an Warning occurs when using 'pass' at mb_convert_encoding() from PHP 7.3, it used to work without Warning before PHP 7.3. See https://3v4l.org/fbRiW#output Test script: --------------- <?php // https://3v4l.org/fbRiW#output echo mb_convert_encoding('a', 'UTF-8', 'pass'); ?> Expected result: ---------------- No warning should occur or the docs need to be adjusted for the 'pass' parameter. Actual result: -------------- Warning: mb_convert_encoding(): Unable to create character encoding converter in ... on line ... ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=80626&edit=1