http://docs.php-http.org/en/latest/httplug/users.html

<?php
/**
* Created by PhpStorm.
* User: Mch
* Date: 7/8/18
* Time: 21:39
*/

interface Proto {
// 连接url
public function conn($url);
//发送get查询
public function get();
// 发送post查询
public function post();
// 关闭连接
public function close();
}

class Http implements Proto {

const CRLF  = "\\r\\n";  
const BUFFSIZE = 1024;

protected $errno = -1;  
protected $errstr = '';  
protected $response = '';

protected $url = \[\];  
protected $version = 'HTTP/1.1';  
protected $fh = null;

protected $line = \[\];  
protected $header = \[\];  
protected $body = \[\];

public function \_\_construct($url) {  
    $this->conn($url);  
    $this->setHeader('Host: ' . $this->url\['host'\]);  
}

// POST /student/login HTTP/1.1  
protected function setLine($method) {  
    $query = $this->url\['query'\];  
    $this->line\[0\] = implode(' ', \[  
        $method,  
        $this->url\['path'\].(strlen($query)>0 ? '?'.$query : ''),  
        $this->version  
    \]);  
}

public function setHeader($headerline) {  
    $this->header\[\] = $headerline;  
}

public function setBody($body) {  
    $this->body\[\] = http\_build\_query($body);  
}

// 连接url  
public function conn($url) {  
    $this->url = parse\_url($url);

    if(!isset($this->url\['port'\])) {  
        $this->url\['port'\] = 80;  
    }  
    if(!isset($this->url\['query'\])) {  
        $this->url\['query'\] = '';  
    }  
    $this->fh = fsockopen($this->url\['host'\],  
        $this->url\['port'\],  
        $this->errno,  
        $this->errstr,  
        3   /\* timeout 3s \*/  
    );  
    if (!$this->fh) {  
        echo "$this->errstr ($this->errno)";  
        return NULL;  
    }  
    return $this->fh;  
}

//构造get请求的数据  
public function get() {  
    $this->setLine('GET');  
    $this->request();  
    return $this->response;  
}

// 构造post查询的数据  
public function post($body = \[\], $enctype = 'application/x-www-form-urlencoded') {  
    $this->setLine('POST');  
    // content-type 'multipart/form-data' or ...  
    $this->setHeader('Content-type: ' . $enctype . '; charset=UTF-8');

    $this->setBody($body);  
    $this->setHeader('Content-length: ' . strlen($this->body\[0\]));

    $this->request();  
    return $this->response;  
}

// 关闭连接  
public function close() {  
    $this->fh && fclose($this->fh);  
}

// 真正请求  
private function request() {  
    // 把请求行，头信息，实体信息　放在一个数组里，便于拼接  
    fwrite($this->fh, implode(self::CRLF, array\_merge(  
        $this->line,  
        $this->header,  
        \[''\],  
        $this->body,  
        \[''\]  
    )));

    // 为什么循环第2次时候很慢(假设响应长度<BUFFSIZE, 即1次读取完了)?  
    while(!feof($this->fh)) {  
        $content = fread($this->fh, self::BUFFSIZE);  
        if (strlen($content)<=0) {  
            break;  
        }  
        $this->response .= $content;  
        // echo $this->response;  
    }  
}

}

// $url = "http://www.tfjyzx.com/news/listTVProgram?area=%E8%AE%B8%E6%98%8C";
$url = "http://www.tfjyzx.com/student/login";
$http = new Http($url);

// $resp = $http->get();
$http->setHeader('X-Requested-With: XMLHttpRequest');
$http->setHeader('User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36');
// !important $.ajax() contentType: 'application/json'
$http->setHeader('Accept: application/json, text/javascript, */*; q=0.01');

// 'username=mingzhanghui&pwd=123456&captcha=&count=1'
$resp = $http->post([
'username' => 'mingzhanghui',
'pwd' => '123456',
'captcha' => '',
'count' => 1
]);
var_dump($http);
$http->close();

echo $resp;

@func: parse_url
http://www.tfjyzx.com/model-school.jsp?area=%E5%BC%80%E5%B0%81&school=%E5%BC%80%E5%B0%81%E5%B8%82%E7%AC%AC%E4%BA%94%E4%B8%AD%E5%AD%A6#%E5%AD%A6%E6%A0%A1%E7%AE%80%E4%BB%8B

array(5) {
["scheme"]=>
string(4) "http"
["host"]=>
string(14) "www.tfjyzx.com"
["path"]=>
string(17) "/model-school.jsp"
["query"]=>
string(94) "area=%E5%BC%80%E5%B0%81&school=%E5%BC%80%E5%B0%81%E5%B8%82%E7%AC%AC%E4%BA%94%E4%B8%AD%E5%AD%A6"
["fragment"]=>
string(36) "%E5%AD%A6%E6%A0%A1%E7%AE%80%E4%BB%8B"
}

可以使用现有的库: php-http