'랜덤 숫자 + 영문' 태그의 글 목록

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$connection = mysql_connect("ip","id","pw") or die("데이터베이스 연결실패"); mysql_query('set character set euckr'); mysql_select_db("test",$connection);   $arr1=array("A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"); $arr2=array("1","2","3","4","5","6","7","8","9","0"); $count_i = 0; for ($t = 0; $t < 500; $t++) {     $str1 = '';     $str2 = '';     for ($i = 0; $i < 3; $i++) {         $j = rand(0, 25);         $str1 .= $arr1[$j];     }     for ($k = 0; $k < 7;$ k++) {         $j = rand(0,9);         $str2 .= $arr2[$j];     }       $str1 = substr(trim($str1), 0, 3);     $str2 = substr(trim($str2), 0, 7);     // echo "str1 : ".$str1." ";     // echo "str2 : ".$str2." ";     if (strlen($str1) == 3 && strlen($str2) == 7) {         $str = $str1.$str2;     }     $tmp = str_shuffle($str);     // echo "tmp3 : ".$tmp3." ";       if (strlen($tmp) == 10) {         $query = "INSERT INTO RAND_TEST SET C_RANDNO = '".$tmp."'";         //  echo "query : ".$query." ";         mysql_query($query, $connection);         $count_i++;     }     if($t%10000 == 0) {         flush();     } } echo "count : ".$count_i." "; mysql_close($connection);