Decode Unicode strings in PHP

util.php

<?php
#source: http://stackoverflow.com/questions/2934563/how-to-decode-unicode-escape-sequences-like-u00ed-to-proper-utf-8-encoded-char

function replace_unicode_escape_sequence($match) {
    return mb_convert_encoding(pack('H*', $match[1]), 'UTF-8', 'UCS-2BE');
}

function unicode_decode($str) {
    return preg_replace_callback('/\\\\u([0-9a-f]{4})/i', 'replace_unicode_escape_sequence', $str);
}

$str = unicode_decode('\u00e9');

?>

Nice, really appreciable. Thanks

$str = utf8_decode(unicode_decode('\u00e9'));

nice Thanks for snipped 🗡️

Great code, works like a charm. Many thanks!

Smallest way :

$str = "Ludwigstra\u00c3\u009fe 51";
echo utf8_decode(implode(json_decode('["' . $str . '"]')));

Demo : http://codepad.org/VYhNMlgc

Many thanks

Smallest way :

$str = "Ludwigstra\u00c3\u009fe 51";
echo utf8_decode(implode(json_decode('["' . $str . '"]')));

Demo : http://codepad.org/VYhNMlgc

Thanks. simple worked like a charm :)

Smallest way :

$str = "Ludwigstra\u00c3\u009fe 51";
echo utf8_decode(implode(json_decode('["' . $str . '"]')));

Demo : http://codepad.org/VYhNMlgc

Awesome! Thank you!

utf8_decode is depricated.

utf8_decode is depricated.

You right @olehtalanov, this function has been DEPRECATED as of PHP 8.2.0, see details.

An alternative for PHP8.2 and above is:

$str = "Ludwigstra\u00c3\u009fe 51";
echo mb_convert_encoding(implode(json_decode('["' . $str . '"]')), 'ISO-8859-1', 'UTF-8');

Demo: https://onlinephp.io/c/19fe8