Online PHP editor | output for qTSiL

@ 2014-01-09T08:57:54Z

<?php
function position_merge(array $arr1,array $arr2)
{
	function addIndex(&$item,$idx)
	{
		$item["array_index"]=$idx;
	}
	function rmIndex(&$item)
	{
		unset($item["array_index"]);
	}
	array_walk($arr1,"addIndex");
	array_walk($arr2,"addIndex");
	$result=array_merge($arr1,$arr2);
	usort($result,function($a,$b){
		return $a["position"]>$b["position"]?1:($a["position"]<$b["position"]?-1:$a["array_index"]-$b["array_index"]);
	});
	array_walk($result,"rmIndex");
	return $result;
}
$array1 = array(
    array('name' => 'Bob', 'position' => 1),
    array('name' => 'Tim', 'position' => 1),
    array('name' => 'Alf', 'position' => 3),
    array('name' => 'Jon', 'position' => 3) 
);

$array2 = array(
    array('name' => 'Tom', 'position' => 2),
    array('name' => 'Joe', 'position' => 2),
    array('name' => 'Jim', 'position' => 2),
    array('name' => 'Kev', 'position' => 2)
);
print_r(position_merge($array1,$array2));

Output for 5.3.0 - 5.3.29, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Array ( [0] => Array ( [name] => Bob [position] => 1 ) [1] => Array ( [name] => Tim [position] => 1 ) [2] => Array ( [name] => Tom [position] => 2 ) [3] => Array ( [name] => Joe [position] => 2 ) [4] => Array ( [name] => Jim [position] => 2 ) [5] => Array ( [name] => Kev [position] => 2 ) [6] => Array ( [name] => Alf [position] => 3 ) [7] => Array ( [name] => Jon [position] => 3 ) )
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Parse error: syntax error, unexpected T_FUNCTION in /in/qTSiL on line 15
Process exited with code 255.
Output for 5.0.0 - 5.0.5: Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/qTSiL on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected T_ARRAY, expecting ')' in /in/qTSiL on line 2
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: Parse error: parse error, unexpected T_ARRAY, expecting ')' in /in/qTSiL on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `')'' in /in/qTSiL on line 2
Process exited with code 255.

preferences:dark modelive preview