openssl_x509_export_to_file

(PHP 4 >= 4.2.0, PHP 5)

openssl_x509_export_to_file — Exports a certificate to file

bool openssl_x509_export_to_file ( mixed $x509 , string $outfilename [, bool $notext = TRUE ] )

openssl_x509_export_to_file() stores x509 into a file named by outfilename in a PEM encoded format.

x509: 参见密钥/证书参数以获取有效值列表。
outfilename: Path to the output file.
notext: 可选参数 notext 影响输出的冗余度; 如果设为 FALSE, 输出内容将包含附加的人类可读信息. notext 的缺省值为 TRUE.

成功时返回 TRUE，或者在失败时返回 FALSE.