Online PHP editor | output for HDSCU

@ 2014-06-06T20:00:37Z

<?php
function utf8($num)
{
    if($num<=0x7F)       return chr($num);
    if($num<=0x7FF)      return chr(($num>>6)+192).chr(($num&63)+128);
    if($num<=0xFFFF)     return chr(($num>>12)+224).chr((($num>>6)&63)+128).chr(($num&63)+128);
    if($num<=0x1FFFFF)   return chr(($num>>18)+240).chr((($num>>12)&63)+128).chr((($num>>6)&63)+128).chr(($num&63)+128);
    return '';
}

function uniord($c)
{
    $ord0 = ord($c{0}); if ($ord0>=0   && $ord0<=127) return $ord0;
    $ord1 = ord($c{1}); if ($ord0>=192 && $ord0<=223) return ($ord0-192)*64 + ($ord1-128);
    $ord2 = ord($c{2}); if ($ord0>=224 && $ord0<=239) return ($ord0-224)*4096 + ($ord1-128)*64 + ($ord2-128);
    $ord3 = ord($c{3}); if ($ord0>=240 && $ord0<=247) return ($ord0-240)*262144 + ($ord1-128)*4096 + ($ord2-128)*64 + ($ord3-128);
    return false;
}
echo uniord('á');
echo utf8(0xE1);

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Fatal error: Array and string offset access syntax with curly braces is no longer supported in /in/HDSCU on line 13
Process exited with code 255.
Output for 7.4.0 - 7.4.33: Deprecated: Array and string offset access syntax with curly braces is deprecated in /in/HDSCU on line 13 Deprecated: Array and string offset access syntax with curly braces is deprecated in /in/HDSCU on line 14 Deprecated: Array and string offset access syntax with curly braces is deprecated in /in/HDSCU on line 15 Deprecated: Array and string offset access syntax with curly braces is deprecated in /in/HDSCU on line 16 225á
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33: 225á

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