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Help With a Custom Sorting Function

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Dec 15.2008

I need a little function that will put the values of an array in this order:

“RWD”, “WD”, “RWB”, “WB”, “BOW”, “BOS”, “BOB”, “GRP4”, “GRP3”, “GRP2”, “GRP1”, “BIS”

If you need a test array to work with, use this one:

[code=php]$placements=array(‘BOS’, ‘RWD’, ‘BIS’, ‘GRP3’, ‘GRP2’);[/code]

I’m gonna be using this with a usort.

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PHP

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@scragarDec 15.2008 — [code=php]
function myValueSort($a, $b){
$x = array_flip(array(
"RWD", "WD", "RWB", "WB", "BOW", "BOS", "BOB",
"GRP4", "GRP3", "GRP2", "GRP1", "BIS"
));
if($b == $a)
return 0;
return ($x[$a] < $x[$b])?-1:1;
}

usort($placements, "myValueSort");
print_r($placements);
[/code]
Swap $a and $b around if the array comes out sorted the wrong way around.
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