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@ 2015-05-05T15:15:31Z

<?php

$wrongUtf8 = mb_convert_encoding('öäü', 'UTF-8', 'ISO-8859-1');
var_dump($wrongUtf8);

$validUtf8 = mb_convert_encoding($wrongUtf8, 'ISO-8859-1', 'UTF-8');
var_dump($validUtf8);

Output
Performance
VLD
References
Branches

mb_convert_encoding: documentation ( source)
var_dump: documentation ( source)

preferences:dark modelive preview

45.76 ms | 402 KiB | 5 Q