PHP implements cross-server access

This article mainly introduces PHP cross-server access methods, and examples summarize common PHP cross-server access techniques. I hope to be helpful.

The specific analysis is as follows:

Recently, I have encountered the problem of cross-server access in the project. I have studied it for many days and summarized it as follows:

1. Use the file_get_contents method

$host = 'url'; 
$randomNumber=file_get_contents($host);
echo $$randomNumber;

2. Use Curl

$host = 'url'; 
$ch = curl_init(); 
curl_setopt($ch, CURLOPT_URL, $host); 
// 返回结果 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 0); 
// 使用POST提交 
curl_setopt($ch, CURLOPT_POST, 1); 
// POST参数 
$str = array('a=1','b=2','c=3'); 
curl_setopt($ch, CURLOPT_POSTFIELDS, $str);
// 结果 
$res = curl_exec($ch); 
curl_close($ch);

Use the curl library. Before using the curl library, you may need to check php.ini to see if the curl extension has been turned on

3. Use fopen to open the url and obtain the content in get mode

<?php
$url="http://www.jb51.net/";
$fp=fopen($url,&#39;r&#39;);
while(!feof($fp)){
$result.=fgets($fp,1024);
}
echo" $result";
fclose($fp);
?>

Related recommendations:

Cross-domain methods in js

Detailed explanation of cross-domain solutions in laravel development

AJAX principles and CORS cross-domain methods

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