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这是一例php实现API接口的代码：
实现用户注册、登录、查询的功能；
是学习PHP API开发的不错实例。
代码示例：
<?php
require 'conn.php';
header('Content-Type:text/html;charset=utf-8');
$action = $_GET['action'];
switch ($action) {
**//注册会员**
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 == '') {
$res = urlencode("参数有误");
exit(json_encode($res)); //有空信息
}
$sql = "select username from `member` where username='$username'";
$query = mysql-query.html target=_blank class=infotextkey>mysql_query()($sql, $conn);
$count = mysql_num_rows($query);
if ($count > 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,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));
}
}
**API客户端部分代码：
代码示例：**
<?php
header('Content-Type:text/html;charset=utf-8'); //避免输出乱码
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()(*******'', $postResult);
switch (curl_getinfo($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)));
}
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