how to set array element/sort array in php

Hello All i want to sort the array in the way that

ASC order of user id

there is array like $use开发者_Python百科r

i want to sort on the base

id $user['role'] =1;

then that element will set at the top of the array

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Look in the PHP manual at asort, sort, and ksort. I'm not exactly sure what you're asking, but one of them is bound to do what you need.

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Does that information come from a database? In that case, doing something like ORDER BY role DESC, user_id would be better than having PHP sort it for you.

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If your array example $user['role'] = 1 means that 1 is the user id you want to use sort($user); however if role is going to be numeric you would want asort($user); instead as sort will overwrite numeric keys. As @Rob above said you may want to use ksort but only if you are making the array $user[user_id] = role.

Hope this helps

Regards

Luke

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Thanx All For Replying on my question

i got the solution here it is

function compare($a,$b)
{
    return strcmp($a["role"]['ID'], $b["role"]['ID']);
}
usort($a,compare);