- PHP Tutorial
- PHP - Home
- PHP - Introduction
- PHP - Installation
- PHP - History
- PHP - Syntax
- PHP - Hello World
- PHP - Comments
- PHP - Variables
- PHP - Echo/Print
- PHP - var_dump
- PHP - $ and $$ Variables
- PHP - Constants
- PHP - Magic Constants
- PHP - Data Types
- PHP - Type Casting
- PHP - Type Juggling
- PHP - Strings
- PHP - Boolean
- PHP - Integers
- PHP - Files & I/O
- PHP - Maths Functions
- PHP - Heredoc & Nowdoc
- PHP - Compound Types
- PHP - File Include
- PHP - Date & Time
- PHP - Scalar Type Declarations
- PHP - Return Type Declarations
- PHP Operators
- PHP - Operators
- PHP - Arithmatic Operators
- PHP - Comparison Operators
- PHP - Logical Operators
- PHP - Assignment Operators
- PHP - String Operators
- PHP - Array Operators
- PHP - Conditional Operators
- PHP - Spread Operator
- PHP - Null Coalescing Operator
- PHP - Spaceship Operator
- PHP Control Statements
- PHP - Decision Making
- PHP - If…Else Statement
- PHP - Switch Statement
- PHP - For Loop
- PHP - Foreach Loop
- PHP - While Loop
- PHP - Do…While Loop
- PHP - Break Statement
- PHP - Continue Statement
- PHP Arrays
- PHP - Arrays
- PHP - Indexed Array
- PHP - Associative Array
- PHP - Multidimensional Array
- PHP - Array Functions
- PHP - Constant Arrays
- PHP Functions
- PHP - Functions
- PHP - Function Parameters
- PHP - Call by value
- PHP - Call by Reference
- PHP - Default Arguments
- PHP - Named Arguments
- PHP - Variable Arguments
- PHP - Returning Values
- PHP - Passing Functions
- PHP - Recursive Functions
- PHP - Type Hints
- PHP - Variable Scope
- PHP - Strict Typing
- PHP - Anonymous Functions
- PHP - Arrow Functions
- PHP - Variable Functions
- PHP - Local Variables
- PHP - Global Variables
- PHP Superglobals
- PHP - Superglobals
- PHP - $GLOBALS
- PHP - $_SERVER
- PHP - $_REQUEST
- PHP - $_POST
- PHP - $_GET
- PHP - $_FILES
- PHP - $_ENV
- PHP - $_COOKIE
- PHP - $_SESSION
- PHP File Handling
- PHP - File Handling
- PHP - Open File
- PHP - Read File
- PHP - Write File
- PHP - File Existence
- PHP - Download File
- PHP - Copy File
- PHP - Append File
- PHP - Delete File
- PHP - Handle CSV File
- PHP - File Permissions
- PHP - Create Directory
- PHP - Listing Files
- Object Oriented PHP
- PHP - Object Oriented Programming
- PHP - Classes and Objects
- PHP - Constructor and Destructor
- PHP - Access Modifiers
- PHP - Inheritance
- PHP - Class Constants
- PHP - Abstract Classes
- PHP - Interfaces
- PHP - Traits
- PHP - Static Methods
- PHP - Static Properties
- PHP - Namespaces
- PHP - Object Iteration
- PHP - Encapsulation
- PHP - Final Keyword
- PHP - Overloading
- PHP - Cloning Objects
- PHP - Anonymous Classes
- PHP Web Development
- PHP - Web Concepts
- PHP - Form Handling
- PHP - Form Validation
- PHP - Form Email/URL
- PHP - Complete Form
- PHP - File Inclusion
- PHP - GET & POST
- PHP - File Uploading
- PHP - Cookies
- PHP - Sessions
- PHP - Session Options
- PHP - Sending Emails
- PHP - Sanitize Input
- PHP - Post-Redirect-Get (PRG)
- PHP - Flash Messages
- PHP AJAX
- PHP - AJAX Introduction
- PHP - AJAX Search
- PHP - AJAX XML Parser
- PHP - AJAX Auto Complete Search
- PHP - AJAX RSS Feed Example
- PHP XML
- PHP - XML Introduction
- PHP - Simple XML Parser
- PHP - SAX Parser Example
- PHP - DOM Parser Example
- PHP Login Example
- PHP - Login Example
- PHP - Facebook Login
- PHP - Paypal Integration
- PHP - MySQL Login
- PHP Advanced
- PHP - MySQL
- PHP.INI File Configuration
- PHP - Array Destructuring
- PHP - Coding Standard
- PHP - Regular Expression
- PHP - Error Handling
- PHP - Try…Catch
- PHP - Bugs Debugging
- PHP - For C Developers
- PHP - For PERL Developers
- PHP - Frameworks
- PHP - Core PHP vs Frame Works
- PHP - Design Patterns
- PHP - Filters
- PHP - JSON
- PHP - Exceptions
- PHP - Special Types
- PHP - Hashing
- PHP - Encryption
- PHP - is_null() Function
- PHP - System Calls
- PHP - HTTP Authentication
- PHP - Swapping Variables
- PHP - Closure::call()
- PHP - Filtered unserialize()
- PHP - IntlChar
- PHP - CSPRNG
- PHP - Expectations
- PHP - Use Statement
- PHP - Integer Division
- PHP - Deprecated Features
- PHP - Removed Extensions & SAPIs
- PHP - PEAR
- PHP - CSRF
- PHP - FastCGI Process
- PHP - PDO Extension
- PHP - Built-In Functions
- PHP Useful Resources
- PHP - Questions & Answers
- PHP - Useful Resources
- PHP - Discussion
PHP - php_function_openssl_pkey_get_private()
Definition and Usage
The openssl_pkey_get_private() function will return you the private key.
Description
The function openssl_pkey_get_private() returns private key from the given public/private key. For example contents from .pem file.
Syntax
openssl_pkey_get_private ( mixed $key [, string $passphrase = "" ] ) : resource
Parameters
Sr.No | Parameter | Description |
---|---|---|
1 |
key |
You can take the key from the .pem file or using private key generated from openssl_pkey_new(). |
2 |
passphrase |
If they key you are using is encrypted , than you will have to specify passphrase. |
Return Values
PHP openssl_pkey_get_private() function returns a resource identifier if there is no error. It will return false if the key generation fails.
PHP Version
This function will work from PHP Version greater than 5.0.0.
Example 1
Working of openssl_pkey_get_private():
<?php // Generate a new private (and public) key pair $privkey = openssl_pkey_new(); openssl_pkey_export($privkey, $yourprivatekey); $testprivatekey = openssl_pkey_get_private($yourprivatekey); if ($testprivatekey === false) { var_dump(openssl_error_string()); } else { var_dump($testprivatekey); } ?>
This will produce the following result:
resource(3) of type (OpenSSL key)
Example 2
Working of openssl_pkey_get_private() and openssl_pkey_get_details() −
<?php $privkey = openssl_pkey_new(); openssl_pkey_export($privkey, $yourprivatekey); $testprivatekey = openssl_pkey_get_private($yourprivatekey); if ($testprivatekey === false) { var_dump(openssl_error_string()); } else { //var_dump($testprivatekey); $key_details = openssl_pkey_get_details($testprivatekey); print_r($key_details); } ?>
This will produce the following result:
Array ( [bits] => 2048 [key] => -----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnO1F0Gt03mgxLcDpRxlm VEh8sfIfan5o11EcoLaEwaTyKgMNm7A4Rs9LcG3fwkNjXo8XNRQv6OSrhl8y00AX +cPUb78Qp/K3INmyXr8UUVWy0BT+Rxq5kez1TmZhpITxUYLScEL8DPcghFyfstRa 5hP8hc0cwYM6N4ieOlXIxrdmbzTn92MeyiTstTvHxt8aGKbSdpmksWyNeqke22kM 9pBfEsf98XFh5HoQBQaQF6GXL5y00PWIdki7DTzYtXXPRGcQl/53M5HrGGdP0kGS uD4YOFXRWYtQR1ZYLa4Ej+BP0eOpfxXiME0aaH1/2iWqyi+bsvkdgFbu92j5ptsr yQIDAQAB -----END PUBLIC KEY----- [rsa] => Array ( [n] => ��E�kt�h1-��GfTH|��j~h�Q��* ��8F�Kpm��Cc^�5/�䫆_2�@��o��� ٲ^�QU���G��Nfa��Q��pB�� �\��Z�����:7��:U�Ʒfo4��c�$�;����v��l�z��i��_��qa�z���/��vH� <صu�Dg��w3��gO�A��>8U�Y�PGVX-�O���0Mh}�%��/���V��h��+� [e] => [d] => MK��C|��Y5��5}Z�R0;�S�I�V����M��0�Lw�r��R��|��C��d�W�}�#��v�[9iZI��1��&!��A�;8K�%}��`@ ������}��n b�]K�L#�~Sg�' 81!��2R]������`�vl�&�Z�@-q��7u�#����.��d�����]�*Z-�'�|�ܳ ?M j���Å [p] => �*&5IXM�U�$u�'��d,�$x��iR�1�ᙯ��A�Cxi`%�FR�5� ��!�a��C��֧t�^�� ��f�$��V�+�ү��]v"�+=��I�w��RN��<�P�e�� 3-�"��^���|_�-�l��lD,���=�26�ۗXGg5�@}q��T.�j��A��#��m,>#YN}��,pk}g [dmp1] => �� �l5o�5L�����ޅh)I�+��D�n�J!��ycP��1 =u>&��h-HT���K��j;�um �oO\�e��.�� X�%s��ڕ_�|Za3��z$�\n1�N1�u�j)��z� [dmq1] => ��n[������ǣ<��t��^��P��)�F@ni�� �gHꥴ(��@#s�!+$�D��]����{��I㯽l��[$��>i q|�$�Gء�I'R��^c "����e"k [iqmp] => �Ŗij� ��a6�W#�:��#bS?�Ó��S�r#�C�ױ87])4��Z��`��ݻ��w��.�a�y��@ �ѓ�p���s�XP.{�o9h�Bq��뵘�EU��n ��&S��tE� ) [type] => 0 )
Example 3
Working of openssl_pkey_get_private() with passphrase:
<?php $privkey = openssl_pkey_new(); openssl_pkey_export($privkey, $testkey, 'helloworld'); $testprivatekey = openssl_pkey_get_private($testkey, 'helloworld'); if ($testprivatekey === false) { var_dump(openssl_error_string()); } else { //var_dump($testprivatekey); $key_details = openssl_pkey_get_details($testprivatekey); print_r($key_details); } ?>
This will produce the following result:
Array ( [bits] => 2048 [key] => -----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs4HV+NM9dQ1ssuxb9PhM 64Yn8RHgv7YKK33nZudmk6SCOr9yRo7immp+bkaA0Lt/9ONJP+UF5VCltpdNdHLb GDTo+TkK5NdTJDalON3L9EhB4cJeQaQQh59uJGf39Et0BJiYiINXsNdlc/pig1/Z XDRyhEtqQ6nZJkOIIWO0gpdj9xj2naq/wy6Oas4p3/A7EvN5nB22xfEVIptKUZzi YWV4Bs5y2OM3GRwVv+jLYKQ49S/ZKq7MpdCxcXC6YxyrlEIz4PL9cWRtybK3BINv JnCWrfWRhUtlAY/CvfXrq2PhXwHVcebsDOPob6A71TcZMirxFZVyqkC+4rGX+5be PwIDAQAB -----END PUBLIC KEY----- [rsa] => Array ( [n] => ��=u l��[��L�'� +}�f�f��:�rF��j~nF�л��I?��P��Mtr�4��9 ��S$6�8��HA��^A���n$g��Kt��W��es�b�_�\4r�KjC��&C�!c��c���.�j�)��;�y���"�JQ��aex�r��7��`�8�/�*�̥бqp�c��B3��qdmɲ��o&p��Ke�½��c�_�q����o�;�72*��r�@�ⱗ��? [e] => [d] => ��e��e�$% sဩQ��EUA�D��Bu��34$�v�#��P�\��uD��(�z�w+�z��aͲ5���X���q�Pŵڡ��%O+3��]+o�3�FM�*�Z^L��k�/�Ty��/��;�)�sB�Np�5�@�x�,8�z2�#�SyM�o�Xċ.��;��K�� ��ڊ��qsLLD ^��"j��*=Io{��7`a��{�l�ᛅ�B����#���\� [p] => ׳��à�tY�@��[N��n�p�Ƌ��f� ��?7/\��y�i�w�X�P�5�@��s BD�C⎓�| �*���JH��/��|`��+�3��]��oc?�fI�Ze�`�C�>U��|�"��ڊ:U��^��L��g� �u|@z��F%6�X/� ��Ú��+�_�Yh:��59}�D�&כ��Gc [dmp1] => i�*/ �U�̯�6�� ��|�>3�HP�hN��.�G���9��cxj*�!��0�ؼ��R��:�9E(�Z��$�&�&7>�9.Ih��E�z/�,�QR�"�'�;��^��xq [dmq1] => |�w��`��䛌�� ��3��b���AZ�t��.8���Q]��F�iI��2)�{<��G^ܵt��u�Mb��4I�YL�E�S�8a!�6��&Q�(�^����É�� [iqmp] => \p5��N�� $WC�j�� �|�{>d����Y f��9�3�$rF(ON��>�� ����%��`(� &�op� �}=C+��b�˝�#�G"�0T.���G`t�܈��^��\7 ) [type] => 0 )
Example 4
Working of openssl_pkey_get_private() with .pem file:
<?php //creating private key $privkey = openssl_pkey_new(); openssl_pkey_export_to_file($privkey, 'C:/xampp/htdocs/modules/openssl/fortesting.pem'); //using .pem file with private key. $testprivatekey = openssl_pkey_get_private(file_get_contents('C:/xampp/htdocs/modules/openssl/fortesting.pem')); if ($testprivatekey === false) { var_dump(openssl_error_string()); } else { //var_dump($testprivatekey); $key_details = openssl_pkey_get_details($testprivatekey); print_r($key_details); } ?>
This will produce the following result:
Array ( [bits] => 2048 [key] => -----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqaka1+sKh3D4HgIDzER6 vr/DI5u6h1QF6Xm1q/nOduTn0vlx4bLv+QEbcElXV1Bss4W7wOZRkMIOwj4xcT+e PGKaN95JUyxC/NQ13+F6K5yUk0ish36BVusrHt0wdZj28f63gHm824D0yDnn+aJr s+vSuMppErUD/i0QUFnO86ypHi/zeb+QBEif4a82RtfwRIVUtE/Sxy08ct+1ogA9 pdBd47elLmcekz/dtSUqpUjLj5SNojS7AJCZ5LNxnLOzN3ryCQXGaAn8KHQ284Xs jlYBjSjXFLY/1fLDYDpQGOApoBj2vK9Io8MxFU3uss79Ezb6LwKZG6CmzlbldBrJ YQIDAQAB -----END PUBLIC KEY----- [rsa] => Array ( [n] => ���� �p��Dz�#��T�y��v��q��pIWWPl��Q���>1q?� [d] => �9:���Y��"��*xu�&��gt�� &"��{ ��!Px�r�hn#��!c%�u �ʻ�꛷x��7z��&��|��ǔv�Ĩѳ�XT?΅��[w"�=e��m�1R_JH�/�hX��.�E���&&'�:�/:��.I�zdx@�6��)��i��1L�z��"X��>��]�t����Rh��g��!8�Y9�G�rŜ��9z���z��~�����jo_�� [p] => ٥���+�iy��Ѷm:#`BF��Bj>����f�2W%�eIAn� ����۪.o� v�`tgg��a�L�%ٱ� L[��\6��`��sx]�~�bU�fF�/Oy�6�+~v��7u� [q] => ǎ�Ͱ�u(�.L��l��o�Gc�x��@4��r� `i�i�X��v��'�33X��c��_��m8��M���5#t"��^�{�j vSLi�X��mhԷI܀8� 1t� [dmp1] => ���6�$5�Eg�Q�1F"��8y��V`��\��A�{��0� ��ym�6�dUI<�8�f��\��"K�Khja5�z �w�'�m�F9�nv�rϑFP]��i�%��߿L�1�m'�Y��4 @lth7� [dmq1] => il5w*�eG�~��z�2�{��*�"Ӟ���`�����y�r����%@�lq���De��U�z�� �s.��[ ��G�l_äh���8¢H4N�7$�25ң?�L� [iqmp] => 9"l@Ǚ�O�[I)}��K�6A/f5S� ���\�u��>��C��� �z��]�B�-ry/��D��w��H|�g:��8���s̙��◻(�B�Eo�`0 )