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Revision: 40586
at February 4, 2011 03:04 by amyb
Initial Code 
$unique = FALSE;

while ($unique == FALSE){

$ref = md5(date('r', time()) . rand(0,100)); 

$check_ref = mysql_query("SELECT ref FROM table_name WHERE ref = '$ref'");

if(mysql_num_rows($check_ref)==0){

$unique = TRUE;

}

}
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Generate a random reference code and check it's unique









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PHP