Scenario:
file_ get_ The contents () function is used to read the contents of a file into a string. It is one of the commonly used functions to read the contents of a file.
But sometimes file is used on the server_ get_ When the contents() function requests the URL file of HTTPS protocol, an error will be reported, and the file content cannot be read correctly,
reason:
The server is not properly configured with HTTPS certificate
Solution: (three solutions)
Method 1:
Download HTTPS certificate to server
The server downloads this certificate, http://curl.haxx.se/ca/cacert.pem
Php.ini configuration
openssl.cafile = “/ etc/SSL/certs/cacert. PEM”// the path where you actually download the certificate
Restart PHP
Method 2:
Use the curl function to process HTTPS parameters and obtain the file content
<?php
function getSSLPage($url) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSLVERSION,3);
$result = curl_exec($ch);
curl_close($ch);
return $result;
}
var_dump(getSSLPage("https://xxx.xxx.xxx"));
?>Method 3:
Make file_ get_ The contents() function skips HTTPS authentication
$stream_opts = [
"ssl" => [
"verify_peer"=>false,
"verify_peer_name"=>false,
]
];
$response = file_get_contents("https://xxx.xxx.xxx",false,stream_context_create($stream_opts));
It is recommended to use curl function instead of file in development_ get_ Contents() function.
