PHP 8.0 ascii iconv problem

[Csaba27]

Description

The following code:

<?php

$text = "àèìòùÀÈÌÒÙáéíóúýÁÉÍÓÚÝâêîôûÂÊÎÔÛãñõÃÑÕäëïöüÿÄËÏÖÜŸ";

var_dump(iconv("UTF-8", "ASCII//TRANSLIT//IGNORE", $text));

Output

	~ # php8.0 iconv.php
	string(50) "??????????????????????????????????????????????????"

	~ # php7.4 iconv.php
	string(50) "aeiouAEIOUaeiouyAEIOUYaeiouAEIOUanoANOaeiouyAEIOUY"

	~ # php8.1 iconv.php
	string(50) "aeiouAEIOUaeiouyAEIOUYaeiouAEIOUanoANOaeiouyAEIOUY"

PHP Version

PHP 8.0.x

Operating System

Ubuntu 20.04

[iluuu1994]

Is your locale set for the given environment? https://3v4l.org/sa8i5

[Csaba27]

No setlocale set none of them all. The interesting thing is that it doesn't just work at 8.0.x PHP versions.
If not set the locale I think the PHP use the default at the system locale. Or am I wrong? So 7.4 goes 8.1 goes 8.0 no.
~ # locale -a
C
C.UTF-8
POSIX
en_US.utf8

[cmb69]

Please run the following script with the three PHP versions:

var_dump(setlocale(LC_ALL, "0"));

What does it report?

[cmb69]

Also check the following:

var_dump(ICONV_IMPL, ICONV_VERSION);

[Csaba27]

~ # php8.0 iconv.php
string(1) "C"
string(5) "glibc"
string(4) "2.31"


~ # php8.1 iconv.php
string(166) "LC_CTYPE=C.UTF-8;LC_NUMERIC=C;LC_TIME=C;LC_COLLATE=C;LC_MONETARY=C;LC_MESSAGES=C;LC_PAPER=C;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=C;LC_IDENTIFICATION=C"
string(5) "glibc"
string(4) "2.31"



~ # php7.4 iconv.php
string(166) "LC_CTYPE=C.UTF-8;LC_NUMERIC=C;LC_TIME=C;LC_COLLATE=C;LC_MONETARY=C;LC_MESSAGES=C;LC_PAPER=C;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=C;LC_IDENTIFICATION=C"
string(5) "glibc"
string(4) "2.31"