本文实例讲述了PHP实现的注册，登录及查询用户资料功能API接口。分享给大家供大家参考，具体如下：
服务端
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0) {
exit(json_encode(1)); //返回1表示注册失败
} else {
$addsql = "insert into `member` (username,password,email) values ('$username','$password','$email')";
MysqL_query($addsql);
exit(json_encode(0)); //返回0表示注册成功
}
break;
//查询用户信息
case"selectuserinfo";
$username = lib_replace_end_tag($_GET['username']);
$sql = "select id,username,nickname,mobile from `member` where username='$username'";
$query = MysqL_query($sql,$conn);
$row = MysqL_fetch_array($query);
foreach ($row as $key => $v) {
$res[$key] = urlencode($v);
}
exit(json_encode($res));
break;
//会员登录
case"userlogin";
$username = lib_replace_end_tag($_GET['username']);
$password2 = lib_replace_end_tag(trim($_GET['userpassword']));
$password = md5("$password2" . ALL_PS);
$sqluser = "select id,password from `member` where username='" . $username . "' and password='" . $password . "'";
$queryuser = MysqL_query($sqluser);
$rowuser = MysqL_fetch_array($queryuser);
if ($rowuser && is_array($rowuser) && !empty($rowuser)) {
if ($rowuser['username'] == $username && $rowuser['password'] == $password) {
if ($rowuser['password'] == $password) {
$res = urlencode("登录成功");
exit(json_encode($res));
} else {
$res = urlencode("密码错误");
exit(json_encode($res));
}
} else {
$res = urlencode("用户名不存在");
exit(json_encode($res));
}
} else {
$res = urlencode("用户名密码错误");
exit(json_encode($res));
}
/*
* 0：表示登录成功，1：表示密码错误，2：用户名不存在，3：用户名密码错误
*/
break;
default:
exit(json_encode(error));
}
?>
客户端例子：
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注：
代码中的lib_replace_end_tag函数为自定义字符串过滤函数，具体可参考：
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希望本文所述对大家PHP程序设计有所帮助。
