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] => R11
        )

    [version] => 2
    [serialNumber] => 277309010744817673091559807655604418202820
    [serialNumberHex] => 032EF01CC3A19A4016E238F5AB31896F4CC4
    [validFrom] => 250201061734Z
    [validTo] => 250502061733Z
    [validFrom_time_t] => 1738390654
    [validTo_time_t] => 1746166653
    [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] => 63:64:40:D5:EE:4E:F7:97:FA:C4:11:C9:65:97:F5:B8:79:C9:47:FD
            [authorityKeyIdentifier] => keyid:C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9

            [authorityInfoAccess] => OCSP - URI:http://r11.o.lencr.org
CA Issuers - URI:http://r11.i.lencr.org/

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

            [ct_precert_scts] => Signed Certificate Timestamp:
    Version   : v1(0)
    Log ID    : A2:E3:0A:E4:45:EF:BD:AD:9B:7E:38:ED:47:67:77:53:
                D7:82:5B:84:94:D7:2B:5E:1B:2C:C4:B9:50:A4:47:E7
    Timestamp : Feb  1 07:16:04.837 2025 GMT
    Extensions: none
    Signature : ecdsa-with-SHA256
                30:46:02:21:00:E9:94:A2:8E:F0:61:A1:1B:43:68:00:
                F7:80:30:3A:47:CE:1D:3A:32:AD:6C:7F:18:46:A4:F9:
                C9:7D:5E:C9:9D:02:21:00:85:29:F6:DA:64:D7:FE:0F:
                A0:00:BE:6E:89:DE:43:EE:87:61:DF:BD:ED:FB:13:24:
                54:A6:57:66:2E:E4:39:56
Signed Certificate Timestamp:
    Version   : v1(0)
    Log ID    : DE:85:81:D7:50:24:7C:6B:CD:CB:AF:56:37:C5:E7:81:
                C6:4C:E4:6E:D6:17:63:9F:8F:34:A7:26:C9:E2:BD:37
    Timestamp : Feb  1 07:16:04.837 2025 GMT
    Extensions: none
    Signature : ecdsa-with-SHA256
                30:45:02:20:6C:69:47:86:74:7E:B8:F2:6A:DF:C6:FC:
                02:50:F7:1D:6A:03:80:E2:8C:BB:47:AF:09:E8:AC:38:
                A3:F6:DF:23:02:21:00:B3:DA:5B:B4:BE:AF:03:DA:4F:
                9A:62:F4:C1:0D:56:9A:99:7A:F5:9A:80:5C:87:F4:86:
                3E:12:35:ED:F5:E9:02
        )

)
</pre>Valid From: Fri, 31 Jan 2025 23:17:34 -0700<br>Valid To:Fri, 02 May 2025 00:17:33 -0600<br>certificate is live