PHP如何寫一個給外人上傳數(shù)據(jù)的接口？

接口的流程.

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建立控制器(訪問地址)-審核訪問者身份(token)-驗證提交數(shù)據(jù)是否符合類型(validate

)-處理接收數(shù)據(jù)(邏輯流程)-返回結(jié)果(json字符串).

其中要注意是否存在跨域,如果跨域要做跨域處理,例如返回jsonp.

php中怎么把數(shù)據(jù)庫連接寫成一個接口

我自己封裝的一個

?php

class AppConfig{

public static $dbParam = array(

'dbHost' = 'localhost',

'dbUser' = 'root',

'dbPassword' ='',

'dbName' = '數(shù)據(jù)庫名',

'dbCharset' = 'utf8',

'dbPort' = 3306,

'dbPrefix' = 'test_',

'dbPconnect' = 0,

'dbDebug' = true,

);

}

class Model {

private $version = ''; //mysql版本

private $config = array(); //數(shù)據(jù)庫配置數(shù)組

private $class; //當(dāng)前類名

public $tablepre = 'ts_'; //表前綴

public $db = ''; //庫名

public $table = ''; //表名

private static $link; //數(shù)據(jù)庫鏈接句柄

private $data = array(); //中間數(shù)據(jù)容器

private $condition = ''; //查詢條件

private $fields = array(); //字段信息

private $sql = array(); //sql集合，調(diào)試用

public $primaryKey = 'id'; //表主鍵

//構(gòu)造函數(shù)初始化

public function __construct($dbParam = array()) {

$this-config = (is_array($dbParam) !empty($dbParam)) ? $dbParam : AppConfig::$dbParam;

$this-connect();

$this-init();

}

//鏈接數(shù)據(jù)庫

private function connect() {

if($this-config['dbPconnect']) {

self::$link = @mysql_pconnect($this-config['dbHost'], $this-config['dbUser'], $this-config['dbPassword']);

}else{

self::$link = @mysql_connect($this-config['dbHost'], $this-config['dbUser'], $this-config['dbPassword'], true);

}

mysql_errno(self::$link) != 0 $this-errdie('Could not connect Mysql: ');

$this-db= !empty($this-db) ? $this-db : $this-config['dbName'];

$serverinfo = $this-version();

if ($serverinfo '4.1' $this-config['dbCharset']) {

mysql_query("SET character_set_connection=".$this-config['dbCharset'].",character_set_results=".$this-config['dbCharset'].",character_set_client=binary", self::$link);

}

if ($serverinfo '5.0') {

mysql_query("SET sql_mode=''", self::$link);

}

@mysql_select_db($this-db, self::$link) or $this-errdie('Cannot use database');

return self::$link;

}

//表基本信息初始化

protected function init() {

$this-class = get_class($this);

$this-table = !empty($this-table) ? $this-table : strtolower($this-class);

$this-table = $this-tablepre . $this-table;

return $this;

}

//設(shè)置屬性值

public function __set($name, $value) {

//exit($value);

$this-data['fields'][$name] = $value;

}

//獲取屬性值

public function __get($name) {

if(isset($this-data['fields'][$name])) {

return($this-data['fields'][$name]);

}else {

return NULL;

}

}

//字段信息處理

private function implodefields($data) {

if (!is_array($data)) {

$data = array();

}

$this-fields = !empty($this-data['fields']) ? array_merge($this-data['fields'], $data) : $data;

foreach($this-fields as $key = $value) {

$fieldsNameValueStr[] = "`$key`='$value'";

$fieldsNameStr[] = "`$key`";

$fieldsValueStr[] = "'$value'";

}

return array($fieldsNameValueStr, $fieldsNameStr, $fieldsValueStr);

}

//條件判斷組裝

private function condition($where = NULL) {

if (is_numeric($where)) {

$where = "WHERE `{$this-primaryKey}`='{$where}' LIMIT 1";

}elseif (is_array($where)){

$where = "WHERE `{$this-primaryKey}` in (".implode(',',$where).")";

}elseif(!empty($this-data['condition'])){

//'預(yù)留WHERE', 'order', 'group', 'limit' …………等條件關(guān)鍵詞處理接口

$where = $where ? "WHERE {$where}" : "WHERE 1";

isset($this-data['condition']['where']) $where .= ' AND '.$this-data['condition']['where'];

isset($this-data['condition']['group']) $where .= ' GROUP BY '.$this-data['condition']['group'];

isset($this-data['condition']['order']) $where .= ' ORDER BY '.$this-data['condition']['order'];

isset($this-data['condition']['limit']) $where .= ' LIMIT '.$this-data['condition']['limit'];

}else{

$where = "WHERE {$where}";

}

$this-condition = $where;

return $this;

}

//插入數(shù)據(jù)

public function insert($data = array(), $replace = false) {

$fields = $this-implodefields($data);

$insert = $replace ? 'REPLACE' : 'INSERT';

$sql = "{$insert} INTO `{$this-db}`.`{$this-table}` (".implode(', ',$fields[1]).") values (".implode(', ',$fields[2]).")";

$this-query($sql);

return $this-getInsertId();

}

//更新數(shù)據(jù)

public function update($data = array() ,$where = '') {

$numargs = func_num_args();

if ($numargs == 1) {

$where = $data;

$data = array();

}

$fields = $this-implodefields($data);

$this-condition($where);

$sql = "UPDATE `{$this-db}`.`{$this-table}` SET ".implode(', ',$fields[0])." {$this-condition}";

$this-query($sql);

return $this-getAffectedRows();

}

//刪除數(shù)據(jù)

public function delete($where = NULL) {

if(!is_array($where) strtolower(substr(trim($where), 0, 6)) == 'delete'){

$sql = $where;

}else{

$this-condition($where);

$sql = "DELETE FROM `{$this-db}`.`{$this-table}` {$this-condition}";

}

$this-query($sql);

return $this-getAffectedRows();

}

//查詢數(shù)據(jù)

public function select($where = NULL, $fields = '*') {

if(!is_array($where) strtolower(substr(trim($where), 0, 6)) == 'select'){

$sql = $where;

}else{

$this-condition($where);

$sql = "SELECT {$fields} FROM `{$this-db}`.`{$this-table}` {$this-condition}";

}

return $this-fetch($this-query($sql));

}

//查詢一條數(shù)據(jù)

public function getOne($where, $fields = '*') {

$data = $this-select($where, $fields = '*');

if($data) {

return $data[0];

}

return array();

}

//查詢多條數(shù)據(jù)

public function getAll($where, $fields = '*') {

$data = $this-select($where, $fields = '*');

return $data;

}

//結(jié)果數(shù)量

public function getCount($where = '', $fields = '*') {

$this-condition($where);

$sql = "SELECT count({$fields}) as count FROM `{$this-db}`.`{$this-table}` {$this-condition}";

$data = $this-query($sql);

if($data){

return @mysql_result($data,0);

}

return 0;

}

//執(zhí)行sql語句（flag為0返回mysql_query查詢后的結(jié)果，為1返回lastid，其他返回影響行數(shù)，默認(rèn)為2返回影響行數(shù)）

public function query($sql, $flag = '0', $type = '') {

if ($this-config['dbDebug']) {

$startime = $this-microtime_float();

}

//查詢

if ($type == 'UNBUFFERED' function_exists('mysql_unbuffered_query')) {

$result = @mysql_unbuffered_query($sql, self::$link);

} else {

//exit($sql);

$result = @mysql_query($sql, self::$link);

}

//重試

if (in_array(mysql_errno(self::$link), array(2006,2013)) empty($result) $this-config['dbPconnect']==0 !defined('RETRY')) {

define('RETRY',true); @mysql_close(self::$link); sleep(2);

$this-connect();

$result = $this-query($sql);

}

if ($result === false) {

$this-errdie($sql);

}

if ($this-config['dbDebug']) {

$endtime = $this-microtime_float();

$this-sql[] = array($sql,$endtime-$startime);

}

//清空操作數(shù)據(jù)

$this-data = array();

return $flag == '0' ? $result : ($flag == '1' ? $this-getInsertId() : $this-getAffectedRows());

}

//返回結(jié)果$onlyone為true返回一條否則返回所有,$type有MYSQL_ASSOC,MYSQL_NUM,MYSQL_BOTH

public function fetch($result, $onlyone = false, $type = MYSQL_ASSOC) {

if($result){

if ($onlyone) {

$row = @mysql_fetch_array($result, $type);

return $row;

}else{

$rowsRs = array();

while($row=@mysql_fetch_array($result, $type)) {

$rowsRs[] = $row;

}

return $rowsRs;

}

}

return array();

}

//可以運行SELECT，SHOW，EXPLAIN 或 DESCRIBE 等返回一個資源標(biāo)識符的語句得到返回結(jié)果數(shù)組

public function show($sql, $onlyone = false) {

return $this-fetch($this-query($sql), $onlyone);

}

// 使用call函數(shù)處理同類型函數(shù)

private function __call($name, $arguments) {

$callArr = array('on', 'where', 'order', 'between', 'group', 'limit');

if (in_array($name, $callArr)) {

$this-data['condition'][$name] = $arguments[0];

}else{

$this-errdie("function error: function {$name} is not in ($this-class) class exist");

}

return $this;

}

//返回最后一次插入ID

public function getInsertId() {

return @mysql_insert_id(self::$link);

}

//返回受影響行數(shù)

public function getAffectedRows() {

return @mysql_affected_rows(self::$link);

}

//獲取錯誤信息

private function error() {

return ((self::$link) ? @mysql_error(self::$link) : @mysql_error());

}

//獲取錯誤信息ID

private function errno() {

return ((self::$link) ? @mysql_errno(self::$link) : @mysql_errno());

}

//獲取版本信息

function version() {

if(empty($this-version)) {

$this-version = mysql_get_server_info(self::$link);

}

return $this-version;

}

//打印錯誤信息

private function errdie($sql = '') {

if ($this-config['dbDebug']) {

die('/BRBMySQL ERROR/B/BR

SQL:'.$sql.'/BR

ERRNO:'.$this-errno().'/BR

ERROR:'.$this-error().'/BR');

}

die('DB ERROR?。?！');

}

//獲取時間微妙數(shù)

private function microtime_float()

{

list($usec, $sec) = explode(" ", microtime());

return ((float)$usec + (float)$sec);

}

//析構(gòu)函數(shù)

public function __destruct() {

echo 'hr';

$this-config['dbDebug'] print_r($this-sql);

//unset($this-result);

//unset($this-condition);

//unset($this-data);

}

}

class user extends Model {

//public $db = 'qsf_mvc';

//public $table = 'user';

public $primaryKey = 'uid';

}

$userObj = new user();

//---------------------------------------插入數(shù)據(jù)方法一-----------------------------------------

//模擬ActiveRecord模式 插入數(shù)據(jù)

$userObj-username = 'hoho';

$userObj-passwd = '1478522';

$userObj-email = 'qsf.z11@163.com';

$userObj-sex = 1;

$userObj-desc = '清潔工';

$insetId = $userObj-insert();

if ($insetId 0) {

echo "插入ID為:{$insetId}BR";

}

//---------------------------------------插入數(shù)據(jù)方法二-----------------------------------------

//直接數(shù)組做參數(shù)插入數(shù)據(jù)

$userArr = array(

'username' = 'hoho',

'passwd' = '1478522',

'email' = 'qsf.z2121ia@163.com',

'sex' = '1',

'desc' = '廚師',

);

$insetId = $userObj-insert($userArr);

if ($insetId 0) {

echo "插入ID為:{$insetId}BR";

}

//---------------------------------------更新數(shù)據(jù)方法一----------------------------------------

$userObj-username = 'h111oho';

$userObj-passwd = '1478511122';

$userObj-email = 'qsf111ia@163.com';

$userObj-sex = 1;

$userObj-desc = '清潔工';

$affectedRows1 = $userObj-update(89);

if ($affectedRows1 0) {

echo "影響行數(shù)為:{$affectedRows1}BR";

}

//---------------------------------------更新數(shù)據(jù)方法二----------------------------------------

//更新記錄（傳遞參數(shù)的方式和insert操作一樣）

$userArr = array(

'username' = 'hohoho',

'passwd' = '1474rr4448522',

'email' = 'qsf.rrza@165.com',

'sex' = '0',

'desc' = '廚師qq',

);

$affectedRows = $userObj-update($userArr, $insetId);

if ($affectedRows 0) {

echo "影響行數(shù)為:{$affectedRows}BR";

}

//----------------------------------------查詢數(shù)據(jù)----------------------------------------------

$userRs0 = $userObj-select(8); //單個主鍵值

//print_r($userRs0);

$userRs1 = $userObj-select(array(1,5,8)); //多個主鍵值的數(shù)組

//print_r($userRs1);

$userRs2 = $userObj-select('select count(*) as count from user where uid 20'); //直接完整sql語句

//print_r($userRs2);

$userRs3 = $userObj-select("`uid` 0"); //where條件

//print_r($userRs3);

$userRs4 = $userObj-getOne("`uid` 0"); //獲取單條記錄

//print_r($userRs4);

$usersRs5 = $userObj-getAll("`uid` 0"); ////獲取所有記錄

//print_r($usersRs5);

$usersRs6 = $userObj-limit('0,10')-where('uid 100')-order('uid DESC')-group('username')-select();

//print_r($usersRs6);

//----------------------------------------刪除數(shù)據(jù)-----------------------------------------------

//刪除操作傳遞參數(shù)的方式和select操作一樣

$userObj-delete(60); //單個主鍵值

$userObj-delete(array(1,5,8)); //多個主鍵值的數(shù)組

$userObj-delete('delete from user where uid 100'); //直接完整sql語句

$userObj-delete("`uid` 100"); //where條件

$userObj-limit('5')-where('uid 80')-delete();

//----------------------------------------特殊查詢-----------------------------------------------

$userShowRs = $userObj-show('show create table user', true); //獲取特殊查詢的結(jié)果,第二個參數(shù)代表返回一條結(jié)果還是所有的結(jié)果

如何用php調(diào)用外部接口json數(shù)據(jù)

兩種比較簡單的方法：

1、使用curl

$url?=?"";

$ch?=?curl_init();

curl_setopt($ch,?CURLOPT_URL,?$url);

curl_setopt($ch,?CURLOPT_RETURNTRANSFER,?1);

curl_setopt($ch,?CURLOPT_TIMEOUT?,?30);

$output?=?curl_exec($ch);

curl_close($ch);

echo?$output;

2、使用file_get_contents

$output?=?file_get_contents($url);

echo?$output;

3 、使用socket 也是可以的

自定義數(shù)據(jù)接口

cms提供直接輸出、PHP代碼體兩種方便開發(fā)者使用的數(shù)據(jù)輸出接口。

1、直接輸出

本類型是將后臺錄入的數(shù)據(jù)格式原樣輸出到客戶端

返回格式為：

array(3) { ["code"]= int(1) ["msg"]= string(2) "ok" ["data"]= string(7) "test123" }

2、JSON數(shù)組

本類型數(shù)據(jù)內(nèi)容必須是一個json格式的數(shù)組字符串

返回格式為：

array(3) { ["code"]= int(1) ["msg"]= string(2) "ok" ["data"]= array(3) { [0]= string(1) "1" [1]= string(1) "2" [2]= string(1) "3" } }

3、php執(zhí)行代碼

4、模板查詢標(biāo)簽

本類型需要有CMS模板標(biāo)簽的使用經(jīng)驗，直接寫標(biāo)簽代碼返回結(jié)果

例如調(diào)用news模塊全部數(shù)據(jù)：

{module module=news} 或者 {list action=module module=news}

模板標(biāo)簽只能寫一段，不能寫多段

通過以上的list查詢方法可調(diào)用循環(huán)標(biāo)簽的全部數(shù)據(jù)，當(dāng)然你可以對結(jié)果進行格式化處理，使用回調(diào)方法。

5、自定義模板標(biāo)簽

本類型需要有CMS模板標(biāo)簽的使用經(jīng)驗，直接寫標(biāo)簽代碼返回結(jié)果，區(qū)別于（4），本類型可以直接在標(biāo)簽里面寫賦值方法和格式化顯示，不需要寫回調(diào)方法

這里循環(huán)出news模塊的全部數(shù)據(jù)，只顯示id，title，再把thumb轉(zhuǎn)換為url地址。

也可以這樣寫，原理是將輸出變量賦值給$api數(shù)組：

{module module=news} {php $api[$key]['id']=$t['id'];} {php $api[$key]['title']=$t['title'];} {php $api[$key]['thumb']=dr_thumb($t['thumb'], 200,200);} {/module}

以上語法格式為：

6、自定義PHP代碼

本類型需要有PHP的開發(fā)使用經(jīng)驗，直接將php業(yè)務(wù)代碼寫進去

$api變量為直接返回，例如：

$api = '我的自定義返回變量值'；

返回截圖如下：

也可以自定義強制返回

$api = '我的自定義返回變量值'； PhpcmfService::C()-_json(1, '我的返回腳本成功了', $api); // 成功寫法 PhpcmfService::C()-_json(0, '我的返回腳本失敗了'); // 失敗寫法

php中如何調(diào)用接口以及編寫接口代碼詳解

可以用curl獲取借樓的信息。

所謂接口，就是提供一個url，只要你滿足它要求的參數(shù)，就能得到你要的數(shù)據(jù)。比如你拿到一個接口，帶上所需的參數(shù)，復(fù)制到地址欄同樣能得到。不過最好用程序得到。file_get_contents也可以用，不過有局限性。所以我建議用curl。給你一個函數(shù)，挺好用的。

function request($url,$https=true,$method='GET',$data=null){

$ch = curl_init();//初始化，得到資源

curl_setopt($ch, CURLOPT_URL,$url); //請求數(shù)據(jù)的路徑

curl_setopt($ch, CURLOPT_HEADER,false);//是否輸出頭

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //不直接輸出結(jié)果

//curl_setopt ($ch, CURLOPT_SAFE_UPLOAD, 0);//兼容php之后的版本

if($https){

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); //是否驗證主機

curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); //是否進行證書驗證

}

if($method=='POST'){

curl_setopt($ch, CURLOPT_POST, true); //POST傳輸

curl_setopt($ch, CURLOPT_POSTFIELDS, $data); //傳輸數(shù)據(jù)

}

$content_json = curl_exec($ch);

if ($content_json === false) {

return "網(wǎng)絡(luò)請求出錯: " . curl_error($ch);

}

curl_close($ch);

return $content_json;

}