CODEWITHSUNDEEP
phpmultidimensional-array
ihssan
ihssan

Reputation: 369

error using uasort with multidimensional array: undefined index

i have this array

$array["4E-952778"][0]['fileName'] = "File 1";
$array["4E-952778"][0]['product'] = "Muse On Demand";
$array["4E-952778"][1]['fileName'] = "File 2";
$array["4E-952778"][1]['product'] = "Muse On Demand";   

$array["15210"][0]['fileName'] = "File 3";
$array["15210"][0]['product'] = "4Manager"; 
$array["15210"][1]['fileName'] = "File 4";
$array["15210"][1]['product'] = "4Manager";

and im trying to sort it using uasort() this way:

uasort($array, function ($a, $b) { return strcmp($a['product'], $b['product']); });

but im getting an error: undefined index product

Upvotes: 2

Views: 246

Answers (1)

Death-is-the-real-truth
Death-is-the-real-truth

Reputation: 72269

Try this:-

uasort($array, function ($a, $b) {
     $i=0;
     return strcmp($a[$i]['product'], $b[$i]['product']);
});

Upvotes: 1

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