Showing posts with label Algorithms. Show all posts
Showing posts with label Algorithms. Show all posts

Tuesday, June 5, 2007

PHP code Snippets, Algorithms, Array minus

There are hundreds of php snippets under the \lib\snippets\ directory of the Zend Studio Installation directory. I document them, write test cases and put them here.
The copyright of these code belongs to the original author. I publish them only for distributation purpose.
Function:
/**
* In this simple function you send two arrays
* and it gives you an array with the operation A-B,
* elements on A that are not included on B.
*
* @param array $vectorA
* @param
array $vectorB
* @return
array
*/
function RestaDeArrays($vectorA,$vectorB)
{
$cantA=count($vectorA);
$cantB=count($vectorB);
$No_saca=0;
for($i=0;$i<$cantA;$i++)
{
for($j=0;$j<$cantB;$j++)
{
if($vectorA[$i]==$vectorB[$j])
$No_saca=1;
}
if($No_saca==0)
$nuevo_array[]=$vectorA[$i];
else
$No_saca=0;
}
return $nuevo_array;
}


Test Code:
$vectorA = array(1,2,3,4,5,6,7,8);
$vectorB = array(2,4,6,8,10);
print_r(RestaDeArrays($vectorA,$vectorB));

output Result:
Array
(
[0] => 1
[1] => 3
[2] => 5
[3] => 7
)
?>