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php¿¡¼­ ³­¼ö¸¦ ±¸Çϱâ À§Çؼ­´Â srand() ÇÔ¼ö¿Í rand() ÇÔ¼ö°¡ »ç¿ëµË´Ï´Ù. srand()ÇÔ¼ö´Â Á÷Á¢ ³­¼ö¸¦ »ý¼ºÇÏ´Â ÇÔ¼ö°¡ ¾Æ´Ï¶ó rand()ÇÔ¼ö°¡ Á¦´ë·Î µÈ ³­¼ö¸¦ »ý¼ºÇϵµ·Ï ³­¼ö°ªÀ» ÃʱâÈ­ÇÏ´Â ÇÔ¼ö·Î srand() ÇÔ¼ö¸¦ »ý·«ÇÏ¿´À» °æ¿ì¿¡´Â °è¼ÓÇؼ­ ÀÏÁ¤ÇÑ ¸ð¾çÀÇ, ³­¼ö´äÁö ¾ÊÀº ³­¼ö°¡ »ý¼ºµÇ´Â °ÍÀ» º»ÀûÀÌ ÀÖÀ¸½Ç °Ì´Ï´Ù.
rand() ÇÔ¼ö´Â ÀÎÀÚ·Î ¹ÞÀº min°ú max»çÀÌÀÇ °ªÁß ÀÓÀÇÀÇ Á¤¼ö¸¦ ¹ÝȯÇÕ´Ï´Ù.

int rand([int min], [int max])

¡Ø php4.2 ¹öÀüºÎÅÍ´Â srand()ÇÔ¼ö·Î ³­¼ö°ªÀ» ÃʱâÈ­ ÇÒ ÇÊ¿ä°¡ ¾øÀÌ ÀÚµ¿À¸·Î ÃʱâÈ­ µË´Ï´Ù.

¾Æ·¡´Â "ASP¿¡¼­ ³­¼ö¸¦ ÀÌ¿ëÇÑ ÄíÆù¹øÈ£ »ý¼º ¿¹Á¦"¸¦ php ¹®¹ýÀ¸·Î ¹Ù²Û ¿¹Á¦·Î ¿¹Á¦ÀÇ ¼³¸íÀº asp¿Í Å©°Ô ´Ù¸£Áö
¾Ê±â ¶§¹®¿¡ ¾Æ·¡ ¸µÅ©Å¬¸¯ ÈÄ È®ÀÎÇϽô °ÍÀ¸·Î ´ëüÇÏ°Ú½À´Ï´Ù.

ASP¿¡¼­ ³­¼ö¸¦ ÀÌ¿ëÇÑ ÄíÆù¹øÈ£ »ý¼º º¸·¯°¡±â


¹è¿­À» ÀÌ¿ëÇÑ ¹æ¹ý(½Ã°£ÀÌ ³Î³ÎÇÑ ºÐµé¿¡°Ô ±ÇÀå) <?php


   $couponArray = array(
                                 0=>"A",1=>"B",2=>"C",3=>"D",4=>"E",
                                 5=>"F",6=>"G",7=>"H",8=>"I",9=>"J",
                                10=>"K",11=>"L",12=>"M",13=>"N",14=>"O",
                                15=>"P",16=>"Q",17=>"R",18=>"S",19=>"T",
                                20=>"U",21=>"V",22=>"W",23=>"X",24=>"Y",
                                25=>"Z",26=>"0",27=>"1",28=>"2",29=>"3",
                                30=>"4",31=>"5",32=>"6",33=>"7",34=>"8",
                                35=>"9"
                                );

    srand((double)microtime()*1000000); //³­¼ö°ª ÃʱâÈ­

    for($i=0;$i<16;$i++){
          $randNo = rand(0,35); //0°ú 35»çÀÌÀÇ ³­¼ö¸¦ ±¸ÇÑ´Ù
          $resultStr .= $couponArray[$randNo];
     }

    echo$resultStr;
?>




ÇÔ¼ö¸¦ ÀÌ¿ëÇÑ ¹æ¹ý <?php

   $couponNo = getCoupon(16);
   echo$couponNo;

function getCoupon($couponLength, $couponString=""){

    $defaultString = "ABCDEFGHIJKLMNOPQRSTUVXYZ0123456789";
    srand((double)microtime()*1000000);

    if ( $couponString == "" ){ //$couponStringÀÇ °ªÀÌ Á¤ÇØÁöÁö ¾Ê¾Ò´Ù¸é $defaultString °ªÀ¸·Î »ç¿ë
           $couponString = $defaultString;
    }

   $length = strlen($couponString);

   for($i=0;$i<$couponLength;$i++)
  {
     $couponStr = rand(0,$length-1); //0¿¡¼­ $defaultString¶Ç´Â $couponStringÀÇ ±æÀÌ»çÀÌÀÇ ³­¼ö¸¦ ±¸ÇÑ´Ù
     $resultStr .= substr( $couponString, $couponStr, 1 );
   }

  return $resultStr;
}

?>








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