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ใครเก่ง php ช่วยหน่อยครับ คือผมต้องการทำระบบสมัครสมาชิก แล้วให้ยืนยัน รหัสรูปภาพที่สุ่มมา |
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คือผมต้องการทำระบบสมัครสมาชิก แล้วให้ยืนยัน รหัสรูปภาพที่สุ่มมา แต่ไม่รู้ว่าจะใช้ยังไงใครพอรู้ช่วยหน่อยครับ
แต่เวลาใส่รหัสรูปภาพผิดมันจะแสดงข้อความว่ากรุณาใส่รหัสรูปภาพให้ถูกต้อง นี่จะทำยังไงช่วยหน่อยครับ ขอตัวอย่างการนำไปใช้หน่อยครับ ผู้รู้ทั้งหลาย
<?php
function alphanumeric_rand($num_require=8) {
$alphanumeric = array('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z',0,1,2,3,4,5,6,7,8,9);
if($num_require > sizeof($alphanumeric)){
echo "Error alphanumeric_rand(\$num_require) : \$num_require must less than " . sizeof($alphanumeric) . ", $num_require given";
return;
}
$rand_key = array_rand($alphanumeric , $num_require);
for($i=0;$i<sizeof($rand_key);$i++) $randomstring .= $alphanumeric[$rand_key[$i]];
return $randomstring;
}
echo alphanumeric_rand(12);
?>
Tag : - - - -
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Date :
2010-02-25 10:30:22 |
By :
hangs001 |
View :
1145 |
Reply :
3 |
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ขอบคุณครับ
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Date :
2011-07-18 09:00:16 |
By :
Office Ultimate |
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Load balance : Server 00
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