ScotlandPHP

openssl_pkey_export_to_file

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

openssl_pkey_export_to_fileGets an exportable representation of a key into a file

说明

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.

Note: 必须安装有效的 openssl.cnf 以保证此函数正确运行。参考有关安装的说明以获得更多信息。

参数

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.

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE

add a note add a note

User Contributed Notes 2 notes

up
0
StampyCode
1 year 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
up
0
w3ricardo
5 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
To Top