Checking if a value is in the array

Question

I am trying to check if I have the $subCat value in the array then don't add it. I should end up with one of each $subCat but when I dump $details I am still getting the full array. Why is this?

foreach ($detailsFunction as $main) 
{
        $mainlisting = $main['listingId'];
        $mainCat     = strtolower($main['mainCat']);
        $subCatO     = strtolower($main['subCat']);
        $subCat      = str_replace(" ", "-", $subCatO);

        if(isset($subCat) && $subCat == $subCat)
        {

          $details[] = array('url'     => base_url().'listings/'.$mainCat.'/'.$subCat,
                         'mainCat' => $main['mainCat'],
                         'subCat'  => $main['subCat']   
                        );
        }
}

In which array do you want to check if $subCat exists? Right now you're just checking if the variable is set, and if it equals itself (which will always be true) — freejosh
– freejosh, Commented Nov 24, 2012 at 3:21

freejosh · Accepted Answer · 2012-11-24 03:35:57Z

1

Are you concerned with keeping the keys of $details numeric? If not You could add each item with $subCat as its key, and check if the key exists before adding it:

foreach ($detailsFunction as $main) 
{
        $mainlisting = $main['listingId'];
        $mainCat     = strtolower($main['mainCat']);
        $subCatO     = strtolower($main['subCat']);
        $subCat      = str_replace(" ", "-", $subCatO);

        if(!array_key_exists($subCat, $details))
        {

          $details[$subCat] = array('url'     => base_url().'listings/'.$mainCat.'/'.$subCat,
                         'mainCat' => $main['mainCat'],
                         'subCat'  => $main['subCat']   
                        );
        }
}

answered Nov 24, 2012 at 3:35

freejosh

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1 Comment

Jess McKenzie Over a year ago

Thanks Josh Thats what I wanted

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