How to view SSL certificate information in PHP

This article gives you a description of how to use PHP to view the SSL certificate information, the text and examples to introduce to you, there is a need for friends to reference, the following to see together.

Objective

SSL certificates are compliant with the SSL protocol, issued by a trusted digital certification authority CA, after authenticating the server, with server authentication and data transfer encryption. The following is an example of how to view SSL certificate information through PHP, which you need to see.

Sample code

< $str = file_get_contents (' 2.cer ');p rint_r (Openssl_x509_parse ($STR));? >

Note: Certificates require a CER certificate that uses Base64 encoding.