OpenSSL Functions
PHP Manual


(PHP 4 >= 4.2.0, PHP 5, PHP 7)

openssl_pkey_get_privateGet a private key


resource openssl_pkey_get_private ( mixed $key [, string $passphrase = "" ] )

openssl_get_privatekey() parses key and prepares it for use by other functions.



key can be one of the following:

  1. a string having the format file://path/to/file.pem. The named file must contain a PEM encoded certificate/private key (it may contain both).
  2. A PEM formatted private key.


The optional parameter passphrase must be used if the specified key is encrypted (protected by a passphrase).

Return Values

Returns a positive key resource identifier on success, or FALSE on error.

OpenSSL Functions
PHP Manual