本文實例講述了PHP實現的注冊，登錄及查詢用戶資料功能API接口。分享給大家供大家參考，具體如下：
服務端
<?php
require 'conn.php';
header('Content-Type:text/html;charset=utf-8');
$action = $_GET['action'];
switch ($action) {
//注冊會員
case"adduserinfo";
$username = lib_replace_end_tag(trim($_GET['username']));
$password2 = lib_replace_end_tag(trim($_GET['userpassword']));
$password = md5("$password2" . ALL_PS);
$email = lib_replace_end_tag(trim($_GET['email']));
if ($username == '' || $password2 == '' || $password == '') {
$res = urlencode("參數有誤");
exit(json_encode($res)); //有空信息
}
$sql = "select username from `member` where username='$username'";
$query = mysql_query($sql, $conn);
$count = mysql_num_rows($query);
if ($count > 0) {
exit(json_encode(1)); //返回1表示注冊失敗
} else {
$addsql = "insert into `member` (username,password,email) values ('$username','$password','$email')";
mysql_query($addsql);
exit(json_encode(0)); //返回0表示注冊成功
}
break;
//查詢用戶信息
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;
//會員登錄
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,username,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) {
$res = urlencode("登錄成功");
exit(json_encode($res));
} else {
$res = urlencode("密碼錯誤");
exit(json_encode($res));
}
} else {
$res = urlencode("用戶名不存在");
exit(json_encode($res));
}
} else {
$res = urlencode("用戶名密碼錯誤");
exit(json_encode($res));
}
/*
* 0：表示登錄成功，1：表示密碼錯誤，2：用戶名不存在，3：用戶名密碼錯誤
*/
break;
default:
exit(json_encode(error));
}
?>
客戶端例子：
<?php
header('Content-Type:text/html;charset=utf-8'); //避免輸出亂碼
function httpPost($url, $parms) {
$url = $url . $parms;
if (($ch = curl_init($url)) == false) {
throw new Exception(sprintf("curl_init error for url %s.", $url));
}
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 600);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
if (is_array($parms)) {
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: multipart/form-data;'));
}
$postResult = @curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
if ($postResult === false || $http_code != 200 || curl_errno($ch)) {
$error = curl_error($ch);
curl_close($ch);
throw new Exception("HTTP POST FAILED:$error");
} else {
// $postResult=str_replace("\xEF\xBB\xBF", '', $postResult);
switch (curl_getinfo($ch, CURLINFO_CONTENT_TYPE)) {
case 'application/json':
$postResult = json_decode($postResult);
break;
}
curl_close($ch);
return $postResult;
}
}
$postUrl = "http://pujia.test.com/api/server.php";
$p=$_GET['p'];
if ($p =="selectuserinfo") {
$username = $_GET['username'];
$parms = "?action=selectuserinfo&username=" . $username . "";
} elseif ($p =="adduserinfo") {
$username = $_GET['username'];
$userpassword = $_GET['userpassword'];
$parms = "?action=adduserinfo&username=" . $username . "&userpassword=" . $userpassword . "";
} elseif ($p =="userlogin") {
$username = $_GET['username'];
$userpassword = $_GET['userpassword'];
$parms = "?action=userlogin&username=" . $username . "&userpassword=" . $userpassword . "";
}
$res = httpPost($postUrl, $parms); //$parms
$res = json_decode($res);
print_r(urldecode(json_encode($res)));
?>
注：代碼中的lib_replace_end_tag函數為自定義字符串過濾函數，具體可參考：淺析php過濾html字符串,防止SQL注入的方法
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