(PHP 4 >= 4.2.0, PHP 5)
openssl_csr_export_to_file — Exports a CSR to a file
$csr
   , string $outfilename
   [, bool $notext = true
  ] )
   openssl_csr_export_to_file() takes the Certificate
   Signing Request represented by csr and saves it
   as ascii-armoured text into the file named by outfilename.
  
csr
outfilenamePath to the output file.
notext
 The optional parameter notext affects
 the verbosity of the output; if it is FALSE, then additional human-readable
 information is included in the output. The default value of
 notext is TRUE.
   Returns TRUE on success or FALSE on failure.