Online PHP editor | output for TVBGF

@ 2014-10-31T13:06:48Z

<?php

function find_group($cond, &$arr, $e = null)
{
  if (empty($arr)) return [];

  if ($e === null || $cond($e, reset($arr)))
  {
    $ne = array_shift($arr);
    return array_merge([$ne], find_group($cond, $arr, ($e === null) ? $ne : $e));
  }

  return [];
}

function array_group($cond, $arr)
{
  if (empty($arr)) return [];

  /*while($cond($e, reset($arr)))
  {
    $g[] = array_shift($arr);
  }*/

  return array_merge([find_group($cond, $arr)], array_group($cond, $arr));
}


function it($m,$p){echo ($p?'OK':'NO')." It $m\n";}
function eq($a,$b) {return $a==$b;}

echo it ('groups', array_group('eq', [1,5,5,6,6,6,7,9]) == [[1],[5,5],[6,6,6],[7],[9]]);
echo it ('groups by comparing with first item of each group', array_group(function ($a, $b) { return ($a == ($b-1)) || ($a==$b); }, [1,1,2,3,1]) == [[1,1,2],[3],[1]]);
echo it ('groups by comparing with first item of each group', array_group(function ($a, $b) { return ($a == ($b-1)) || ($a==$b); }, [1,1,2,1,3,1]) == [[1,1,2,1],[3],[1]]);

Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: OK It groups OK It groups by comparing with first item of each group OK It groups by comparing with first item of each group
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 OK It groups OK It groups by comparing with first item of each group OK It groups by comparing with first item of each group
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/TVBGF on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Parse error: parse error, unexpected '[' in /in/TVBGF on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/TVBGF on line 5
Process exited with code 255.

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