php tutorial

get random value and key from array uisng php

I have written a function to get the set of random key and value from the array.

function random_array_element(&$a){

mt_srand((double)microtime()*1000000);

// get all array keys:

$k = array_keys($a);

//print_r($k);

// find a random array key:

$r = mt_rand(0, count($k)-1);

$rk = $k[$r];

// return the random key (if exists):

$Value = isset($a[$rk]) ? $a[$rk] : ”;

if(!empty($Value))

{

$kevalueSet = “$rk:$Value”;

return $kevalueSet;

}

else

{

//call the same function or echo

}

}

it will return Key and value set randomly from array like

135:http://humboldt.craigslist.org

so you can explode the above value an get the Array Key and Respective value randomly using php

thanks