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<?php $test = quoted_printable_decode('Piotr Iksi=F1ski'); echo mb_check_encoding($test, 'UTF-8') ? "valid:" : "invalid:"; echo mb_detect_encoding($test, 'ASCII,UTF-8', true) ?: 'false';
Output for rfc.property-hooks, git.master, git.master_jit
invalid:false

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