簡単にshell_execの返り値を配列化にする方法

表記の件につき質問します。

text
1openssl x509 -text -noout -in ＜証明書ファイル＞

Linuxで上記コマンドを入力すると以下の結果が返ります。

text
1Certificate:
2    Data:
3        Version: 3 (0x2)
4        Serial Number: 229893234526831357 (0x1fe236a4gdcb6c1d)
5    Signature Algorithm: sha256WithRSAEncryption
6        Issuer: C=JP, O=XXXXXXX, Inc., CN=XXXXXXXXXXXXXXXXXXXXXXXXX - XX
7        Validity
8            Not Before: Aug 30 05:48:09 2017 GMT
9            Not After : Sep 13 05:44:08 2020 GMT
10        Subject: C=JP, CN=www.example.com
11        Subject Public Key Info:
12            Public Key Algorithm: rsaEncryption
13                Public-Key: (2048 bit)
14                Modulus:
15                    00:db:0e:70:24:13:58:0c:7e:a1:6d:ca:59:98:eb:
16                    e7:98:b5:68:08:9a:ef:f7:e4:4f:a0:fd:f4:4c:58:
17                    c2:a8:0a:3f:f3:b8:15:d4:cd:ff:a7:07:90:f0:8f:
18                    59:55:71:d2:c1:ac:cd:da:13:f0:15:3b:1e:c7:65:
19                    90:65:fb:bd:5a:f4:51:86:13:a1:ab:38:8c:fd:ca:
20                    f2:bc:33:91:26:45:fc:2e:dd:a4:98:a4:f7:41:f6:
21                    5a:e8:09:32:4e:e0:39:44:7d:80:26:5a:5d:53:cd:
22                    47:d3:bb:f7:e9:de:74:38:ee:0e:d1:6e:92:08:9b:
23                    15:41:9b:94:ea:e9:23:7e:c6:2d:56:8e:b4:37:2c:
24                    e4:a2:c4:84:ec:45:bf:5a:5f:98:82:2a:29:7f:2d:
25                    f6:df:49:63:c4:72:00:4e:59:aa:f7:b4:f9:40:90:
26                    d4:da:4d:3e:bd:95:1e:77:89:dd:9f:1c:22:b9:a0:
27                    e4:fd:df:6b:4c:c1:0c:72:23:62:b7:7c:4d:65:46:
28                    67:4d:06:30:ad:0a:54:e5:45:b2:a4:0f:19:9d:70:
29                    e6:23:dd:94:39:eb:67:e8:fb:86:68:d7:f9:74:58:
30                    5b:b5:0b:01:9e:a5:88:e2:7b:51:d7:e5:17:b8:e5:
31                    00:3a:90:23:82:7a:bf:fd:f8:54:79:5c:08:9e:91:
32                    59:8f
33                Exponent: 65537 (0x10001)
34        X509v3 extensions:
35            X509v3 Key Usage: critical
36                Digital Signature, Key Encipherment
37            X509v3 Extended Key Usage: 
38                TLS Web Server Authentication
39            X509v3 Subject Key Identifier: 
40                F4:82:AB:71:AF:8D:1E:21:7F:CF:EA:C6:FA:A1:53:47:9A:A5:08:FC
41            X509v3 Authority Key Identifier: 
42                keyid:82:2E:30:32:24:87:93:5D:02:21:56:07:D7:47:40:0B:06:9F:FB:5A
43
44            X509v3 Subject Alternative Name: 
45                DNS:www.example.com, DNS:example.com
46            X509v3 Certificate Policies: 
47                Policy: X.X.XXX.XXXXXX.XXX.XXX.X
48                  CPS: https://repository/xxxxxxxxxxxxxxx
49
50            X509v3 CRL Distribution Points: 
51
52                Full Name:
53                  URI:https://repository/xxxxxxxxxxxxxxx/example.crl
54
55            Authority Information Access: 
56                OCSP - URI:http://ocsp.example.net
57
58    Signature Algorithm: sha256WithRSAEncryption
59         68:78:4b:e6:82:cf:18:58:c1:aa:b2:8b:20:a8:e3:b0:46:6d:
60         c1:eb:4d:5d:59:15:17:ef:b5:6e:33:53:8c:e8:9f:74:f1:05:
61         c4:a4:ae:1d:cb:6e:75:ef:75:34:63:17:e2:eb:2f:3f:c1:ee:
62         1d:fa:d9:28:16:37:e6:54:63:1a:b8:a0:a1:23:da:77:0d:d1:
63         97:34:59:1b:b2:d9:14:34:86:0c:46:7b:31:d6:5d:a7:15:7a:
64         69:ab:6c:0a:31:62:e6:e6:b4:33:e4:6d:fa:2c:d8:ab:64:51:
65         c2:54:7e:44:31:4b:ff:ba:a6:36:c0:95:2f:e1:92:85:96:9e:
66         2b:13:90:85:88:54:82:a8:a0:d6:b2:c0:3a:1e:a5:46:43:85:
67         29:48:cf:f8:fc:b0:3d:7a:6e:86:28:b9:d1:01:ca:c0:1b:c4:
68         6e:2d:a0:d8:c9:47:da:2d:c7:ef:c3:11:0b:ef:7e:90:ff:ef:
69         80:84:88:41:3e:74:20:8d:be:94:a5:b5:69:0c:1d:66:87:46:
70         af:42:7d:34:93:38:fe:00:11:0f:31:3d:35:24:df:45:2b:e3:
71         bd:18:74:0e:63:4e:44:2a:57:12:77:20:bc:36:3e:2b:16:d9:
72         25:38:98:c9:14:e7:8e:d0:fc:b5:7a:e1:57:ff:ed:62:e9:d7:
73         26:ae:71:53
74

PHPでこのコマンドを実行して以下のように配列で取得できる方法を探しています。

text
1Array(
2  'Certificate' =>
3     'Data' =>
4        'Version' => '3 (0x2)',
5        'Serial Number' => '229893234526831357 (0x1fe236a4gdcb6c1d)',
6     'Signature Algorithm' => array(
7        'sha256WithRSAEncryption',
8        'Issuer' => 'C=JP, O=XXXXXXX, Inc., CN=XXXXXXXXXXXXXXXXXXXXXXXXX - XX',
9        'Validity' => array(
10          'Not Before' => 'Aug 30 05:48:09 2017 GMT',
11          'Not After' => 'Sep 13 05:44:08 2020 GMT',
12        )
13     )
14     // 省略
15)