Randow number

[Anon]

Ok, I'm trying to generate a random number I have a set of functions to do this and check the DB for duplicate entries! below are the fuction but i'm get invalid range on the rand() bit? anyone know why?

Also can you use a $global element for a mysql DB connection? if not is there a better way to use mysql in function with out doing a db connect in all function?

Thanks

Ashley

// Makes seed for a random number

function make_seed() {
list($usec, $sec) = explode(' ', microtime());
return (float) $sec + ((float) $usec * 100000);
}

// Test ident is valid

function valid_ident($val){
$db = mysql_connect("195.224.9.42","coldseal","fishmonger");
mysql_select_db("pvc",$db);

$sql = mysql_query("select * from uid where uid='$val'", $GLOBAL[db]);
$many = mysql_num_rows($sql);
mysql_close();
return $many;

}

// makes randow id number

function get_ident(){
srand(make_seed());
$randval = rand(1000000000, 9999999999);
$valid = valid_ident($randval);
if($valid == "1"){
$ident = get_ident();
}else{
$ident = $randval;
}
return $ident;
}

[Anon]

try this:

<?php
// seed with microseconds
function make_seed() {
list($usec, $sec) = explode(' ', microtime());
return (float) $sec + ((float) $usec * 100000);
}
mt_srand(make_seed());
$randval = mt_rand();
echo"$randval";
?>