3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $examples = array( 'Valid ASCII' => "a", 'Valid 2 Octet Sequence' => "\xc3\xb1", 'Invalid 2 Octet Sequence' => "\xc3\x28", 'Invalid Sequence Identifier' => "\xa0\xa1", 'Valid 3 Octet Sequence' => "\xe2\x82\xa1", 'Invalid 3 Octet Sequence (in 2nd Octet)' => "\xe2\x28\xa1", 'Invalid 3 Octet Sequence (in 3rd Octet)' => "\xe2\x82\x28", 'Valid 4 Octet Sequence' => "\xf0\x90\x8c\xbc", 'Invalid 4 Octet Sequence (in 2nd Octet)' => "\xf0\x28\x8c\xbc", 'Invalid 4 Octet Sequence (in 3rd Octet)' => "\xf0\x90\x28\xbc", 'Invalid 4 Octet Sequence (in 4th Octet)' => "\xf0\x28\x8c\x28", 'Valid 5 Octet Sequence (but not Unicode!)' => "\xf8\xa1\xa1\xa1\xa1", 'Valid 6 Octet Sequence (but not Unicode!)' => "\xfc\xa1\xa1\xa1\xa1\xa1", ); mb_substitute_character(0x3013); foreach ($examples as $k => $v) { echo "{$k}\n"; echo mb_convert_encoding($v, 'UTF-8', 'UTF-8'); echo "\n"; }
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Valid ASCII a Valid 2 Octet Sequence ñ Invalid 2 Octet Sequence 〓( Invalid Sequence Identifier 〓〓 Valid 3 Octet Sequence ₡ Invalid 3 Octet Sequence (in 2nd Octet) 〓(〓 Invalid 3 Octet Sequence (in 3rd Octet) 〓( Valid 4 Octet Sequence 𐌼 Invalid 4 Octet Sequence (in 2nd Octet) 〓(〓〓 Invalid 4 Octet Sequence (in 3rd Octet) 〓(〓 Invalid 4 Octet Sequence (in 4th Octet) 〓(〓( Valid 5 Octet Sequence (but not Unicode!) 〓〓〓〓〓 Valid 6 Octet Sequence (but not Unicode!) 〓〓〓〓〓〓
Output for 4.3.0 - 5.3.29
Valid ASCII a Valid 2 Octet Sequence ñ Invalid 2 Octet Sequence ( Invalid Sequence Identifier Valid 3 Octet Sequence ₡ Invalid 3 Octet Sequence (in 2nd Octet) ( Invalid 3 Octet Sequence (in 3rd Octet) ( Valid 4 Octet Sequence 𐌼 Invalid 4 Octet Sequence (in 2nd Octet) ( Invalid 4 Octet Sequence (in 3rd Octet) ( Invalid 4 Octet Sequence (in 4th Octet) (( Valid 5 Octet Sequence (but not Unicode!) ����� Valid 6 Octet Sequence (but not Unicode!) ������