openssl_pkey_export_to_file

(PHP 4 >= 4.2.0, PHP 5)

openssl_pkey_export_to_file — Gets an exportable representation of a key into a file

Опис

bool openssl_pkey_export_to_file ( mixed $key , string $outfilename [, string $passphrase [, array $configargs ]] )

openssl_pkey_export_to_file() saves an ascii-armoured (PEM encoded) rendition of key into the file named by outfilename.

Зауваження: You need to have a valid openssl.cnf installed for this function to operate correctly. See the notes under the installation section for more information.

Параметри

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.

Значення, що повертаються

Повертає TRUE в успішному випадку або FALSE в разі помилки.

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User Contributed Notes 2 notes

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-3

StampyCode ¶

7 years ago


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

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-6

w3ricardo ¶

12 years ago


You can't use this function to export a public key

Warning: openssl_pkey_export_to_file(): supplied key param is a public key

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