Re: checking for duplicate values among five variables

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On Fri, 2007-07-06 at 23:03 -0400, Robert Cummings wrote:
> On Fri, 2007-07-06 at 21:51 -0500, Kenn Murrah wrote:
> > Can anyone help me with a way to determine of two or more variables have 
> > the same value?  For instance,
> > 
> > $a1 = 1000
> > $a2 = 2000
> > $a3 = 2000
> > $a4 = 4000
> > $a5 = 5000
> > 
> > I want check these five variables and determine whether, as in this 
> > case, two or more of the variables  have the same value.
> > 
> > Any suggestions how I can do this?
> 
> <?php
> 
> $a1 = 1000;
> $a2 = 2000;
> $a3 = 2000;
> $a4 = 4000;
> $a5 = 5000;
> 
> $hits = array();
> for( $i = 0; $i < 5; $i++ )

Should be:

    for( $i = 1; $i <= 5; $i++ )

> {
>     $hits[${'a'.$i}][] = 'a'.$i;
> }
>  
> foreach( $hits as $value => $vars )
> {
>     if( count( $vars ) > 1 )
>     {
>         echo 'Value: '.$value."\n";
>         print_r( $vars );
>     }
> }
> 
> ?>

Cheers,
Rob.
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