Source:  https://stackoverflow.com/questions/6863948/how-to-get-expiry-date-from-the-ssl-certificate-file-in-php<pre>Array
(
    [name] => /CN=lunawebs.com
    [subject] => Array
        (
            [CN] => lunawebs.com
        )

    [hash] => 105ebe35
    [issuer] => Array
        (
            [C] => US
            [O] => Let's Encrypt
            [CN] => R13
        )

    [version] => 2
    [serialNumber] => 514489811364583147710295819081605540983701
    [serialNumberHex] => 05E7F31D6100D7BB5F3321F45DA78B4FB395
    [validFrom] => 251129061714Z
    [validTo] => 260227061713Z
    [validFrom_time_t] => 1764397034
    [validTo_time_t] => 1772173033
    [signatureTypeSN] => RSA-SHA256
    [signatureTypeLN] => sha256WithRSAEncryption
    [signatureTypeNID] => 668
    [purposes] => Array
        (
            [1] => Array
                (
                    [0] => 1
                    [1] => 
                    [2] => sslclient
                )

            [2] => Array
                (
                    [0] => 1
                    [1] => 
                    [2] => sslserver
                )

            [3] => Array
                (
                    [0] => 1
                    [1] => 
                    [2] => nssslserver
                )

            [4] => Array
                (
                    [0] => 
                    [1] => 
                    [2] => smimesign
                )

            [5] => Array
                (
                    [0] => 
                    [1] => 
                    [2] => smimeencrypt
                )

            [6] => Array
                (
                    [0] => 
                    [1] => 
                    [2] => crlsign
                )

            [7] => Array
                (
                    [0] => 1
                    [1] => 1
                    [2] => any
                )

            [8] => Array
                (
                    [0] => 1
                    [1] => 
                    [2] => ocsphelper
                )

            [9] => Array
                (
                    [0] => 
                    [1] => 
                    [2] => timestampsign
                )

        )

    [extensions] => Array
        (
            [keyUsage] => Digital Signature, Key Encipherment
            [extendedKeyUsage] => TLS Web Server Authentication, TLS Web Client Authentication
            [basicConstraints] => CA:FALSE
            [subjectKeyIdentifier] => AE:0F:EB:71:13:B2:7F:3C:B9:BB:46:DA:0A:66:56:BB:6B:19:81:14
            [authorityKeyIdentifier] => keyid:E7:AB:9F:0F:2C:33:A0:53:D3:5E:4F:78:C8:B2:84:0E:3B:D6:92:33

            [authorityInfoAccess] => CA Issuers - URI:http://r13.i.lencr.org/

            [subjectAltName] => DNS:lunawebs.com, DNS:lunawebs.lunasoft.com, DNS:www.lunawebs.com
            [certificatePolicies] => Policy: 2.23.140.1.2.1

            [crlDistributionPoints] => 
Full Name:
  URI:http://r13.c.lencr.org/22.crl

            [ct_precert_scts] => Signed Certificate Timestamp:
    Version   : v1(0)
    Log ID    : 49:9C:9B:69:DE:1D:7C:EC:FC:36:DE:CD:87:64:A6:B8:
                5B:AF:0A:87:80:19:D1:55:52:FB:E9:EB:29:DD:F8:C3
    Timestamp : Nov 29 07:15:44.367 2025 GMT
    Extensions: none
    Signature : ecdsa-with-SHA256
                30:45:02:20:4B:BE:09:46:1A:F7:61:81:74:69:05:D8:
                C0:28:66:D2:C6:39:B9:67:37:96:F8:BF:F9:82:DD:7D:
                72:26:1F:7A:02:21:00:DC:B8:09:4E:94:8F:8D:E0:27:
                49:A9:8A:7C:2C:7A:FC:A4:DF:E9:68:78:20:EE:56:0B:
                36:48:D4:3B:1D:9B:F1
Signed Certificate Timestamp:
    Version   : v1(0)
    Log ID    : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E:
                F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7
    Timestamp : Nov 29 07:15:44.388 2025 GMT
    Extensions: none
    Signature : ecdsa-with-SHA256
                30:46:02:21:00:AA:37:33:A4:EC:AE:D4:55:5C:D3:90:
                7C:D1:C8:79:6A:0E:14:0E:85:5B:70:87:69:EC:51:E3:
                AF:1B:29:2B:5F:02:21:00:D0:C9:64:98:F4:46:FB:7B:
                94:93:CC:60:0E:92:64:64:1E:5B:11:E1:E8:EC:21:89:
                39:04:C2:7B:6D:D0:F4:6B
        )

)
</pre>Valid From: Fri, 28 Nov 2025 23:17:14 -0700<br>Valid To:Thu, 26 Feb 2026 23:17:13 -0700<br>certificate is live