php的post和get方法

<?php

function post($url,$fields)
{
    $fields_string = '';
    foreach($fields as $key=>$value) { $fields_string .= $key.'='.$value.'&'; }
    rtrim($fields_string,'&');

    //open connection
    $ch = curl_init();

    //set the url, number of POST vars, POST data
    curl_setopt($ch,CURLOPT_URL,$url);
    curl_setopt($ch,CURLOPT_POST,count($fields));
    curl_setopt($ch,CURLOPT_POSTFIELDS,$fields_string);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

    //execute post
    $result = curl_exec($ch);

    //close connection
    curl_close($ch);

    return $result;
}

function get($url)
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_HEADER, 0);

    $response = curl_exec($ch);

    curl_close($ch);

    return $response;
}   

$url = "http://192.168.1.105:8080/delete?file_path=lishujun/test.txt";
$response = get($url);
echo "--> $response \n";

?>