Online PHP editor | rfc 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 git.master, git.master_jit, rfc.property-hooks: 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

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