PHP curl封装成类
<?php
/**
用法:
$content = Curl::instance()->url($url)->get($data);
$content = Curl::instance()->url($url)->post($data);
//保存生成的选项
Curl::instance()->url($url)->header($header)->cookie($cookie)->save();
//下面可以直接用
$content = Curl::instance()->post($data);
$content = Curl::instance()->file('img.jpg')->post();
*/
class Curl{
//curl对象
protected $curl = null;
//对象实例
protected static $instance = null;
//发送的数据
public $data = '';
//返回的头信息
public static $info = array();
//返回的内容
public static $content = '';
//错误消息
public static $error = '';
//选项
public $options = array('debug'=>false, 'sleep'=>0);
//默认选项
public $settings = array(
CURLOPT_HEADER => 0,//是否显示头信息
CURLOPT_RETURNTRANSFER => 1,//是否返回信息
CURLOPT_TIMEOUT => 30,//超时
);
public static function instance($options = array()){
if(is_null(self::$instance)) self::$instance = new static($options);
return self::$instance;
}
public function __construct($options = array()){
$this->curl = curl_init();
$this->settings = $options + $this->settings;
$this->options = $this->settings + $this->options;
}
public function __call($method, $args){
$data = empty($args)? '' : current($args);
$exec = ($data === false)? false : true;
return $this->method($method)->data($data)->send($exec);
}
public static function __callStatic($method, $args){
return static::instance()->url($args[0])->data($args[1])->$method();
}
public function method($method = ''){
if(func_num_args() == 0) return $this->options[CURLOPT_CUSTOMREQUEST];
$this->options[CURLOPT_CUSTOMREQUEST] = strtoupper($method);
return $this;
}
/**
* 设置参数
* @param $options
* @param string $value
* @return $this
*/
public function set($options, $value = ''){
if(is_array($options)){
$this->options = $options + $this->options;
}else if(isset($this->$options)){
$this->$options = $value;
}else{
$this->options[$options] = $value;
}
return $this;
}
/**
* 保留选项
* @return $this
*/
public function save(){
$this->settings = $this->options;
return $this;
}
public function send($exec = true){
$method = $this->method();
if(!empty($this->data)) $data = is_array($this->data)? http_build_query($this->data) : $this->data;
if($method == 'GET'){
if(!empty($this->data)){
if(is_string($this->data)){
$this->options[CURLOPT_URL] .= '/'. $this->data;
}else if(is_numeric(key($this->data))){
foreach($this->data as &$value){
$value = rawurlencode($value);
}
$this->options[CURLOPT_URL] .= '/'. implode('/', $this->data);
}else{
$link = strpos($this->options[CURLOPT_URL], '?') === false? '?' : '&';
$this->options[CURLOPT_URL] .= $link . $data;
}
}
}else{
if($method == 'POST'){ $this->options[CURLOPT_POST] = 1; }
//其他请求方式
$this->options[CURLOPT_CUSTOMREQUEST] = strtoupper($method);
if(!empty($this->data)){
if(isset($this->options[CURLOPT_POSTFIELDS]) && !empty($this->options[CURLOPT_POSTFIELDS])){
$this->options[CURLOPT_POSTFIELDS] .= '&' . $data;
}else{
$this->options[CURLOPT_POSTFIELDS] = $data;
}
}
}
//上传文件时,CURLOPT_POST必须放在CURLOPT_POSTFIELDS之前,这里干脆全部排序
ksort($this->options);
$debug = isset($this->options['debug'])? $this->options['debug'] : false;
$sleep = isset($this->options['sleep'])? $this->options['sleep'] : 0;
unset($this->options['debug'], $this->options['sleep']);
if($exec === false){
$options = $this->options;
}else{
curl_setopt_array($this->curl, $this->options);
if($debug) static::log($this->options);
}
//清空
$this->options = $this->settings;
$this->data = '';
//返回
if($exec === false){ return $options; }
self::$content = curl_exec($this->curl);
self::$info = curl_getinfo($this->curl);
self::$error = curl_error($this->curl);
curl_reset($this->curl);
if($debug && !empty(self::$error)) exit(self::$error);
if($sleep) sleep($sleep);
return self::$content;
}
public static function error(){
return self::$error;
}
/**
* 超时选项
* @param int $time
* @return $this
*/
public function time($time = 30){
$this->options[CURLOPT_TIMEOUT] = $time;
return $this;
}
public function url($url){
$this->options[CURLOPT_URL] = $url;
return $this;
}
/**
* 证书选项
* @param string $file
* @param int $level
* @return $this
*/
public function cacert($file = '', $level = 2){
if(empty($file)){
$this->options[CURLOPT_SSL_VERIFYPEER] = false; //只信任CA颁布的证书
}else{
$this->options[CURLOPT_CAINFO] = $file; //CA根证书（用来验证的网站证书是否是CA颁布）
$this->options[CURLOPT_SSL_VERIFYPEER] = true; //只信任CA颁布的证书
}
//检查证书中是否设置域名和是否与提供的主机名匹配（0:不检查,1:检查域名,2:检查是否匹配）
$this->options[CURLOPT_SSL_VERIFYHOST] = $level;
return $this;
}
public function cookie($cookie){
if(strpos($cookie, '=')){
$this->options[CURLOPT_COOKIE] = $cookie;
}else{
$this->options[CURLOPT_COOKIEJAR] = $cookie;
$this->options[CURLOPT_COOKIEFILE] = $cookie;
}
return $this;
}
public function header($header = 1, $value = null){
if(is_numeric($header)){
$this->options[CURLOPT_HEADER] = $header;//返回头信息
}else if($value !== null){
$header = array(ucfirst($header) => $value);
}else if(is_numeric(key($header))){
$header = $this->format($header, true);
}
if(is_array($header)){
if(!empty($this->options[CURLOPT_HTTPHEADER])){
$header = array_merge($this->format($this->options[CURLOPT_HTTPHEADER], true), $header);
}
$this->options[CURLOPT_HTTPHEADER] = $this->format($header, true);
}
return $this;
}
public function body($content = ''){
if(func_num_args() == 0){
return isset($this->options[CURLOPT_POSTFIELDS])? $this->options[CURLOPT_POSTFIELDS] : '';
}
$this->options[CURLOPT_POSTFIELDS] = $content;
return $this;
}
/**
* 发送数据
* @param $args
* @return $this
*/
public function data($args = ''){
if(func_num_args() == 0) return $this->data;
$args = func_get_args();
foreach($args as $data){
if($data === null) $this->data = '';
if(is_object($data)) $data = (array) $data;
if($data === '') continue;
if(is_array($data)){
if(!is_array($this->data)) $this->data = array();
$this->data = array_merge($this->data, $data);
}else{
$this->data .= $data;
}
}
return $this;
}
/**
* 从浏览器粘贴的 header 信息或表单数据转换成数据
* @param $data
* @return array
*/
public function format($data, $header = false){
//字符串转数组
if(is_string($data)){
$data = explode("\n", trim($data));
foreach($data as $key => $value){
$data[$key] = trim($value);
}
$format = true;
}
$return = array();
if(($header && is_numeric(key($data))) || isset($format)){
foreach($data as $value){
$value = explode(':', trim($value), 2);
$return[rtrim($value[0])] = ltrim($value[1]);
}
}else if($header){
foreach($data as $key => $value){
$return[] = "$key: $value";
}
}
return empty($return)? $data : $return;
}
public function host($value){
$this->header('Host', $value);
return $this;
}
public function origin($value){
$this->header('Origin', $value);
return $this;
}
public function agent($value = ''){
if(empty($value)) $value = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.86 Safari/537.36';
$this->header('User-Agent', $value);
return $this;
}
public function accept($value = ''){
if(empty($value)) $value = 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8';
$this->header('Accept', $value);
return $this;
}
public function referer($value){
$this->header('Referer', $value);
return $this;
}
public function language($value = ''){
if(empty($value)) $value = 'zh,zh-CN;q=0.9,en;q=0.8,en-US;q=0.7';
$this->header('Accept-Language', $value);
return $this;
}
public function location($times = 3){
$this->options[CURLOPT_FOLLOWLOCATION] = 1;//根据返回的Location重定
$this->options[CURLOPT_MAXREDIRS] = $times;//限制重定向次数
return $this;
}
public function file($file, $upname = 'file', $mime = '', $name = ''){
$data = array($upname => curl_file_create(realpath($file), $mime, $name));
if(isset($this->options[CURLOPT_POSTFIELDS])){
$this->options[CURLOPT_POSTFIELDS] = $data + $this->options[CURLOPT_POSTFIELDS];
}else{
$this->options[CURLOPT_POSTFIELDS] = $data;
}
return $this;
}
public function sleep($second = 3){
$this->options['sleep'] = $second;
return $this;
}
public function debug($debug = true){
$this->options['debug'] = $debug;
return $this;
}
public static function log($args){
$args = func_get_args();
$count = func_num_args();
foreach($args as $key => $data){
file_put_contents('./log.txt', (is_string($data)? $data : var_export($data, true)), FILE_APPEND | LOCK_EX);
if($key < $count - 1) file_put_contents('./log.txt', "\n----------------------------------------------------------\n", FILE_APPEND | LOCK_EX);
}
file_put_contents('./log.txt', "\n================[time ".date('Y-m-d H:i:s')."]================\n", FILE_APPEND | LOCK_EX);
}
public function __destruct(){
curl_close($this->curl);
}
}
