On Linux (PHP5.6), this function will overwrite an existing keyfile, unless the keyfile is marked as read-only, in which case you will get an error:
error:0200100D:system library:fopen:Permission denied
(PHP 4 >= 4.2.0, PHP 5, PHP 7)
openssl_pkey_export_to_file — Gets an exportable representation of a key into a file
$key
, string $outfilename
[, string $passphrase
[, array $configargs
]] ) : bool
openssl_pkey_export_to_file() saves an ascii-armoured
(PEM encoded) rendition of key
into the file named
by outfilename
.
Informacja: Aby ta funkcja prawidłowo działała wymaga poprawnie zainstalowanego openssl.cnf. Aby uzyskać więcej informacji przeczytaj rozdział instalacja openssl.
key
outfilename
Path to the output file.
passphrase
The key can be optionally protected by a
passphrase
.
configargs
configargs
can be used to fine-tune the export
process by specifying and/or overriding options for the openssl
configuration file. See openssl_csr_new() for more
information about configargs
.
Zwraca TRUE
w przypadku powodzenia, FALSE
w
przypadku błędu.
On Linux (PHP5.6), this function will overwrite an existing keyfile, unless the keyfile is marked as read-only, in which case you will get an error:
error:0200100D:system library:fopen:Permission denied