//CAPTCHA: vidu.php <?php session_start(); //phát sinh 6 ký tự ngẫu nhiên: $dodai=6; $chuoi="QWERTYUIOPASDFGHJKLZXCVBNM0123456789"; $capt=""; for($i=1;$i<=$dodai;$i++) { $vitri=rand(0,35); $capt.=substr($chuoi,$vitri,1); } $_SESSION['captcha']=$capt; ?> <!doctype html> <html> <head> <meta charset="utf-8"> <title>Untitled Document</title> </head> <body> <form action="xuly.php" name="form1"id="form1" method="post"> <p> <label for="textfield">Ho Ten:</label> <input type="text" name="textfield" id="textfield"> </p> <p> <label for="textfield2">Mat Khau:</label> <input type="text" name="textfield2" id="textfield2"> </p> <p> <label for="textfield3">Nhap ma xac n...
Trung Tâm Nhất Nghệ - 00299A - KG: 10/04/2021