A brief talk on data transmission curl_php examples in PHP

Confirm that the curl extension is installed

Linux under command:

[Root@fengniu020 ~]# Php-i | Grep-i Curl
Additional. ini files parsed =>/etc/php.d/curl.ini, Curl Curl support, =>
enabled
CURL Information => 7.19.7

Curl Operation Step Resolution:

Curl Instance

1. A simple curl, crawl Baidu home page

2. Download a Web page and the content of "Baidu" replaced by "ferry" after the output

3. Call WebService

A simple curl, crawl Baidu home page

<?php
$curl =curl_init (' http://www.jb51.net ');
Curl_exec ($curl);
Curl_close ($curl);
? >

Download a webpage and replace "Baidu" in the content with "ferry" after the output

<?php
/**
 * Example Description: Download a Web page on the network and the content of the "Baidu" replaced by the "ferry" after the output
 * * * *
$curlobj = Curl_init ();      Initialization of
curl_setopt ($curlobj, Curlopt_url, "http://www.baidu.com");    Sets the URL to access the Web page
curl_setopt ($curlobj, Curlopt_returntransfer, true);      Do not print directly after execution
$output =curl_exec ($curlobj);//
Curl_close ($curlobj);     Close Curl
echo str_replace ("Baidu", "Ferry", $output);
? >

Call WebService

 <?php/** * Example Description: Through the call WebService query the current weather in Beijing * Below the interface, free users 24 hours access is limited, need to store information * * * $data =
' Thecityname= Beijing ';  
$data = ' thecityname= Beijing & ';//multiple connected with & $curlobj = Curl_init (); 
curl_setopt ($curlobj, Curlopt_url, "http://www.webxml.com.cn/WebServices/WeatherWebService.asmx/getWeatherbyCityName"); 
curl_setopt ($curlobj, Curlopt_header, 0); 
curl_setopt ($curlobj, Curlopt_returntransfer, 1); curl_setopt ($curlobj, Curlopt_post, 1); 
Post mode curl_setopt ($curlobj, Curlopt_postfields, $data); curl_setopt ($curlobj, Curlopt_httpheader, Array ("application/x-www-form-urlencoded; Charset=utf-8 "," Content-length: ". strlen ($data)));
HTTP Request Header curl_setopt ($curlobj, curlopt_useragent, $_server[' http_user_agent ']);  
$rtn = curl_exec ($curlobj); 
  if (!curl_errno ($curlobj)) {//$info = Curl_getinfo ($curlobj);
  Print_r ($info); 
Echo $rtn; else {echo ' Curl error: '. Curl_error ($curlobj);} curl_close ($curlobj); 

Download a file from the FTP server to the local

<?php
/**
 * Code Instance-php-curl actual
 case Description: Download a file from the FTP server to the local * * *
$curlobj = Curl_init ();  
curl_setopt ($curlobj, Curlopt_url, "Ftp://192.168.1.100/downloaddemo.txt"); 
curl_setopt ($curlobj, Curlopt_header, 0); 
curl_setopt ($curlobj, Curlopt_returntransfer, 1); 
curl_setopt ($curlobj, Curlopt_timeout, 300); Times out after 300s
curl_setopt ($curlobj, Curlopt_userpwd, "peter.zhou:123456");//ftp Username: password
//Sets up The output file
$outfile = fopen (' dest.txt ', ' WB ');//save to local filename
curl_setopt ($curlobj, Curlopt_file, $outfile );

$rtn = curl_exec ($curlobj); 
Fclose ($outfile); 
if (!curl_errno ($curlobj)) {
  //$info = Curl_getinfo ($curlobj); 
  Print_r ($info);
  echo "return:". $rtn; 
} else {
 echo ' Curl error: '. Curl_error ($curlobj);
}
Curl_close ($curlobj);
? >

Upload the local file to the FTP server

<?php
/**
 * Code Instance-php-curl actual
 case Description: Upload the local file to the FTP server
/$curlobj = Curl_init ();  
$localfile = ' ftp01.php ';//need to upload the file
$fp = fopen ($localfile, ' R ');

curl_setopt ($curlobj, Curlopt_url, "ftp://192.168.1.100/ftp01_uploaded.php");//file name saved after uploading
curl_setopt ($ Curlobj, Curlopt_header, 0); 
curl_setopt ($curlobj, Curlopt_returntransfer, 1); 
curl_setopt ($curlobj, Curlopt_timeout, 300); Times out after 300s
curl_setopt ($curlobj, Curlopt_userpwd, "peter.zhou:123456");//ftp username: password

curl_ Setopt ($curlobj, curlopt_upload, 1);
curl_setopt ($curlobj, Curlopt_infile, $fp);//Transfer Open File
curl_setopt ($curlobj, Curlopt_infilesize, FileSize ($ LocalFile))//uploaded file size
$rtn = curl_exec ($curlobj); 
Fclose ($FP); 
if (!curl_errno ($curlobj)) {
  echo uploaded successfully. 
} else {
 echo ' curl error: '. Curl_error ($ curlobj);
}
Curl_close ($curlobj);
? >

Download an HTTPS resource above the network

<?php
/**
 * Code Instance-php-curl actual combat
 * Example Description: Download the network above an HTTPS resource
 * * *
$curlobj = Curl_init ();      Initialize
curl_setopt ($curlobj, Curlopt_url, "https://ajax.aspnetcdn.com/ajax/jquery.validate/1.12.0/ Jquery.validate.js ");    Sets the URL to access the Web page
curl_setopt ($curlobj, Curlopt_returntransfer, true);      Do not print directly after execution/

/Set up HTTPS support
date_default_timezone_set (' PRC ');///When using cookies, you must first set the time zone
curl_setopt ($ Curlobj, Curlopt_ssl_verifypeer, 0); Check the authentication certificate from the certificate to check the existence of SSL encryption algorithm, set to 0 is to terminate from the server side of the verification
curl_setopt ($curlobj, Curlopt_ssl_verifyhost, 2);// 

$ Output=curl_exec ($curlobj); Implementation of
Curl_close ($curlobj);     Close Curl
echo $output;
? >

The above article discusses the data transmission in PHP Curl is a small series to share all the content, hope to give you a reference, but also hope that we support cloud habitat community.