search
Homephp教程php手册一波PHP中cURL库的常见用法代码示例,一波curl

一波PHP中cURL库的常见用法代码示例,一波curl

php 的CURL是不错的功能,下面收藏几段不错的片段

0、基本例子
一般流程:

$to_url=$_GET['url'];
print_r($_GET);
if(substr($to_url,0,1)=='/'){
 $to_url="http://www.amazon.com".$to_url;
}
echo $to_url;
//初始化
$ch = curl_init();
//设置选项,包括URL
curl_setopt($ch, CURLOPT_URL, $to_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
//执行并获取HTML文档内容
$output = curl_exec($ch);
$output=preg_replace("#href=\"#","href=\"http://in2.qq-ex.com/amazon.php?url=",$output);
// 释放curl句柄
curl_close($ch);
echo $output;
// 指定代理地址
curl_setopt($ch, CURLOPT_PROXY, '11.11.11.11:8080');
// 如果需要的话,提供用户名和密码
curl_setopt($ch, CURLOPT_PROXYUSERPWD,'user:pass');

1、测试网站是否运行正常

 if (isDomainAvailible('http://gz.itownet.cn')) 
  { 
    echo "Up and running!"; 
  } 
  else 
  { 
    echo "Woops, nothing found there."; 
  } 
 
  //returns true, if domain is availible, false if not 
  function isDomainAvailible($domain) 
  { 
    //check, if a valid url is provided 
    if(!filter_var($domain, FILTER_VALIDATE_URL)) 
    { 
      return false; 
    } 
 
    //initialize curl 
    $curlInit = curl_init($domain); 
    curl_setopt($curlInit,CURLOPT_CONNECTTIMEOUT,10); 
    curl_setopt($curlInit,CURLOPT_HEADER,true); 
    curl_setopt($curlInit,CURLOPT_NOBODY,true); 
    curl_setopt($curlInit,CURLOPT_RETURNTRANSFER,true); 
 
    //get answer 
    $response = curl_exec($curlInit); 
 
    curl_close($curlInit); 
 
    if ($response) return true; 
 
    return false; 
  } 

2、可以代替file_gecontents的操作

function file_get_contents_curl($url) { 
 $ch = curl_init(); 
 
 curl_setopt($ch, CURLOPT_HEADER, 0); 
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //Set curl to return the data instead of printing it to the browser. 
 curl_setopt($ch, CURLOPT_URL, $url); 
 
 $data = curl_exec($ch); 
 curl_close($ch); 
 
 return $data; 
} 

3、保存某个网站下的所有图片

 function getImages($html) { 
 $matches = array(); 
 $regex = '~http://somedomain.com/images/(.*?)\.jpg~i'; 
 preg_match_all($regex, $html, $matches); 
 foreach ($matches[1] as $img) { 
  saveImg($img); 
 } 
} 
 
function saveImg($name) { 
 $url = 'http://somedomain.com/images/'.$name.'.jpg'; 
 $data = get_data($url); 
 file_put_contents('photos/'.$name.'.jpg', $data); 
} 
 
$i = 1; 
$l = 101; 
 
while ($i < $l) { 
 $html = get_data('http://somedomain.com/id/'.$i.'/'); 
 getImages($html); 
 $i += 1; 
} 

4、FTP应用

// open a file pointer 
$file = fopen("/path/to/file", "r"); 
 
// the url contains most of the info needed 
$url = "ftp://username:password@mydomain.com:21/path/to/new/file"; 
 
$ch = curl_init(); 
 
curl_setopt($ch, CURLOPT_URL, $url); 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
 
// upload related options 
curl_setopt($ch, CURLOPT_UPLOAD, 1); 
curl_setopt($ch, CURLOPT_INFILE, $fp); 
curl_setopt($ch, CURLOPT_INFILESIZE, filesize("/path/to/file")); 
 
// set for ASCII mode (e.g. text files) 
curl_setopt($ch, CURLOPT_FTPASCII, 1); 
 
$output = curl_exec($ch); 
curl_close($ch); 

5、使用curl发送JSON数据

$data = array("name" => "Hagrid", "age" => "36");                                   
$data_string = json_encode($data);                                           
  
$ch = curl_init('http://api.local/rest/users');                                    
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");                                    
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);                                  
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);                                    
curl_setopt($ch, CURLOPT_HTTPHEADER, array(                                      
  'Content-Type: application/json',                                         
  'Content-Length: ' . strlen($data_string))                                     
);                                                           
  
$result = curl_exec($ch); 

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
php怎么把负数转为正整数php怎么把负数转为正整数Apr 19, 2022 pm 08:59 PM

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

php怎么实现几秒后执行一个函数php怎么实现几秒后执行一个函数Apr 24, 2022 pm 01:12 PM

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php怎么除以100保留两位小数php怎么除以100保留两位小数Apr 22, 2022 pm 06:23 PM

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

php怎么根据年月日判断是一年的第几天php怎么根据年月日判断是一年的第几天Apr 22, 2022 pm 05:02 PM

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

php怎么判断有没有小数点php怎么判断有没有小数点Apr 20, 2022 pm 08:12 PM

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

php怎么替换nbsp空格符php怎么替换nbsp空格符Apr 24, 2022 pm 02:55 PM

方法:1、用“str_replace("&nbsp;","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\&nbsp\;||\xc2\xa0)/","其他字符",$str)”语句。

php字符串有没有下标php字符串有没有下标Apr 24, 2022 am 11:49 AM

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

php怎么查找字符串是第几位php怎么查找字符串是第几位Apr 22, 2022 pm 06:48 PM

查找方法:1、用strpos(),语法“strpos("字符串值","查找子串")+1”;2、用stripos(),语法“strpos("字符串值","查找子串")+1”。因为字符串是从0开始计数的,因此两个函数获取的位置需要进行加1处理。

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

EditPlus Chinese cracked version

EditPlus Chinese cracked version

Small size, syntax highlighting, does not support code prompt function