How can I check if ssl certificate where the script is over https

PHP
1

Hi,

I can check if script is over https by checking the server port or server envoronment, but how can I check if ssl certificate where the script is over https, is valid and active too?

2

if the page loads at all then the ssl certificate is valid and active. Without the certificate the page content can’t be encrypted to send.

3

If certificate is expired, browser gives alert and ask if you want to continue, if you click yes you can load and see the page, just lock icon has a red cross. I doubt with expired certificate you will be completely banned accessing the page, so I guess we still need to verify the certificate? Please advice if I am wrong?

4

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