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] => 556589889653993397489780977184319606828664
    [serialNumberHex] => 0663ABB185D4FF334FD4A0BB5520338F2E78
    [validFrom] => 260128061557Z
    [validTo] => 260428061556Z
    [validFrom_time_t] => 1769580957
    [validTo_time_t] => 1777356956
    [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] => 8D:C4:29:8F:86:2B:4F:A8:BA:52:E4:8D:81:69:68:4A:49:99:57:D0
            [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/121.crl

            [ct_precert_scts] => Signed Certificate Timestamp:
    Version   : v1(0)
    Log ID    : 64:11:C4:6C:A4:12:EC:A7:89:1C:A2:02:2E:00:BC:AB:
                4F:28:07:D4:1E:35:27:AB:EA:FE:D5:03:C9:7D:CD:F0
    Timestamp : Jan 28 07:14:27.274 2026 GMT
    Extensions: none
    Signature : ecdsa-with-SHA256
                30:44:02:20:50:68:0C:04:0B:0C:A3:50:01:14:D6:EE:
                4F:0C:B0:09:76:1E:2D:91:3F:31:59:8D:FE:F9:B4:5E:
                2A:24:A8:19:02:20:5F:75:55:20:EB:0B:13:4B:26:EB:
                1E:6D:D8:39:C1:3A:D3:48:D9:F8:56:32:F6:27:92:27:
                62:14:C6:B3:24:A3
Signed Certificate Timestamp:
    Version   : v1(0)
    Log ID    : 1A:8B:9D:69:4A:57:98:C8:99:A0:CA:88:BD:F4:8F:C0:
                B4:56:60:CC:C3:60:0D:1F:71:F4:69:FF:C7:D1:AC:A3
    Timestamp : Jan 28 07:14:27.740 2026 GMT
    Extensions: 00:00:05:00:3D:8F:33:17
    Signature : ecdsa-with-SHA256
                30:45:02:21:00:8A:64:AA:B5:FE:C9:4B:33:89:0E:BC:
                D9:51:F9:FD:62:A4:CF:57:68:EB:A4:49:FE:1C:F2:90:
                A5:7A:E1:EA:48:02:20:56:36:1B:12:6A:32:04:A9:44:
                4A:A9:1B:55:01:AC:01:28:6D:21:6E:FE:CE:FD:44:E5:
                E8:85:D0:BC:DF:22:91
        )

)
</pre>Valid From: Tue, 27 Jan 2026 23:15:57 -0700<br>Valid To:Tue, 28 Apr 2026 00:15:56 -0600<br>certificate is live