<?php
function reindexArray($array, $column)
{
return array_combine(
array_map(function($x) use ($column)
{
return $x[$column];
}, $array),
$array
);
}
function arrayJoin($array1, $array2, $column, $default=null)
{
//in PHP 5.5 it's just array_column() call:
$array1 = reindexArray($array1, $column);
$array2 = reindexArray($array2, $column);
$blank1 = array_combine(
array_keys(current($array1)),
array_fill(1, count(current($array1)), $default)
);
$blank2 = array_combine(
array_keys(current($array2)),
array_fill(1, count(current($array2)), $default)
);
unset($blank1[$column], $blank2[$column]);
return array_merge(
array_map(function($x) use ($array1, $blank2)
{
return array_merge($array1[$x], $blank2);
}, array_keys(array_diff_key($array1, $array2))),
array_map(function($x) use ($array1, $array2)
{
return array_merge($array1[$x], $array2[$x]);
}, array_keys(array_intersect_key($array1, $array2))),
array_map(function($x) use ($array2, $blank1)
{
return array_merge($array2[$x], $blank1);
}, array_keys(array_diff_key($array2, $array1)))
);
}
$array1 = array();
$array1[]=array('subscribers'=>2,'dt_date'=>'2014-02-27');
$array1[]=array('subscribers'=>2,'dt_date'=>'2014-02-25');
$array1[]=array('subscribers'=>1,'dt_date'=>'2014-02-07');
$array2 = array();
$array2[]=array('unsubscribers'=>1,'dt_date'=>'2014-02-27');
$array2[]=array('unsubscribers'=>1,'dt_date'=>'2014-02-01');
var_dump(arrayJoin($array1, $array2, 'dt_date', 0));
preferences:
36.56 ms | 402 KiB | 5 Q