openssl_pkey_get_private

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

openssl_pkey_get_private — Get a private key

Description

openssl_pkey_get_private(OpenSSLAsymmetricKey|OpenSSLCertificate|array|string $private_key, ?string $passphrase = null): OpenSSLAsymmetricKey|false

openssl_pkey_get_private() parses private_key and prepares it for use by other functions.

Parameters

private_key

private_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.

passphrase

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

Return Values

Returns an OpenSSLAsymmetricKey instance on success, or false on error.

Changelog

Version Description
8.0.0 On success, this function returns an OpenSSLAsymmetricKey instance now; previously, a resource of type OpenSSL key was returned.
8.0.0 private_key accepts an OpenSSLAsymmetricKey or OpenSSLCertificate instance now; previously, a resource of type OpenSSL key or OpenSSL X.509 was accepted.
8.0.0 passphrase is nullable now.