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Multiple array in php

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If the ID, topic and description are all in the correct order in each comma delimited string you are supplying to the script, you could use the following to create a single array key'd by the ID:


$id = explode(',',$data->id);
$topic = explode(',',$data->topic);
$description = explode(',',$data->description);

foreach($id as $key=>$val)
{
    $results[$val]['topic'] = $topic[$key];
    $results[$val]['description'] = $description[$key];
}






$newArray=array_merge($topic,$description,$third_array);
foreach($newArray as $key=>$value)
{
echo "$key- $value <br/>";
}
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