array manipulation - php

Question

I have a two column array (array1), for each row of that array I need to compare the value in the 2nd column with a column value in each row of another array(array1) , when they equal I want to append another column value (from array2) to the first array.
in english:
if array1[x][1] = array2[y][0]
then array1[x][2] = array2[y][2]
screen dumps of both arrays
array1 (
[1] => Array (
[0] => 1 [1] => 2
)
[2] => Array (
[0] => 2 [1] => 3
)
[3] => Array (
[0] => 3 [1] =>
) [7] => Array (
[0] => 7 [1] => 1
)
[8] => Array (
[0] => 8 [1] => 1
)
[9] => Array (
[0] => 9 [1] => 10
)
[10] => Array (
[0] => 10 [1] => 2
)
)
array2 (
[0] => Array (
[0] => 1
[1] => 2
[2] => 2
[3] => Jane
[4] => Smith
[5] => jsmith#internet.com
[6] => jsmith
[7] => 12345
[8] => 1
[9] => no
)
[1] => Array (
[0] => 2
[1] => 2
[2] => 3
[3] => James
[4] => Beard
[5] => jasb#bellsouth.net
[6] => jbeard03
[7] => keeper
[8] => 1
[9] => no
)
[2] => Array (
[0] => 3
[1] => 2
[2] =>
[3] => Peter
[4] => Allen
[5] => pallen#rfgg.com
[6] => pallen
[7] => pallen
[8] => 1
[9] => no
)
[3] => Array (
[0] => 7
[1] => 2
[2] => 1
[3] => Joe
[4] => Blow
[5] => jasb#bellsouth.net
[6] => jblow
[7] => blow123
[8] => 5
[9] => yes
)
[4] => Array (
[0] => 8
[1] => 2
[2] => 1
[3] => John
[4] => Smith
[5] => logtest#bellsouth.net
[6] => jnsmith
[7] => jsmith123
[8] => 4
[9] => yes
)
[5] => Array (
[0] => 9
[1] => 2
[2] => 10
[3] => Frank
[4] => Smith
[5] => pallen#test.com
[6] => fsmith
[7] => fsmith123
[8] => 4
[9] => yes
)
[6] => Array (
[0] => 10
[1] => 2
[2] => 2
[3] => Loretta
[4] => Beard
[5] => lbeard#me.net
[6] => lbeard
[7] => lbeard123
[8] => 1
[9] => no
)
)

Answer 1

Does this work? I'm not sure I'm entirely clear on what you're looking for.
foreach($array1 as $x => $xarray) {
foreach($array2 as $y => $yarray) {
if($xarray[1] == $yarray[0]) {
$array1[$x][2] = $array[$y][2];
}
}
}

Answer 2

foreach ($array1 as &$a1) {
foreach ($array2 as $a2) {
if ($a1[1] == $a2[0]) {
$a1[] = $a2[2];
continue 2;
}
}
}
BTW, you should try to use explicit keys that actually mean something, e.g. $a1['id'] instead of $a1[1]. You'll thank yourself when you look at the code again two months down the road.
And because I threatened to do so:
btwyoushouldtrytouseexplicitkeysthatactuallymeansomethingeg$a1['id']insteadof$a1[1]youllthankyourselfwhenyoulookatthecodeagaintwomonthsdowntheroad ;-P