function _print_pdf_wkhtmltopdf_version in Printer, email and PDF versions 6

Same name and namespace in other branches

1. 5.4 print_pdf/print_pdf.module \_print_pdf_wkhtmltopdf_version()
2. 7 print_pdf/print_pdf.module \_print_pdf_wkhtmltopdf_version()
3. 5.x print_pdf/print_pdf.module \_print_pdf_wkhtmltopdf_version()

Find out the version of the wkhtmltopdf library

2 calls to _print_pdf_wkhtmltopdf_version()

print_pdf_requirements in print_pdf/print_pdf.module

Implementation of hook_requirements().

_print_pdf_wkhtmltopdf in print_pdf/print_pdf.pages.inc

Generate the PDF file using wkhtmltopdf

File

print_pdf/print_pdf.module, line 673

Displays Printer-friendly versions of Drupal pages.

Code

function _print_pdf_wkhtmltopdf_version() {
  $print_pdf_pdf_tool = variable_get('print_pdf_pdf_tool', PRINT_PDF_PDF_TOOL_DEFAULT);
  $descriptor = array(
    0 => array(
      'pipe',
      'r',
    ),
    1 => array(
      'pipe',
      'w',
    ),
    2 => array(
      'pipe',
      'w',
    ),
  );
  $cmd = '"' . realpath($print_pdf_pdf_tool) . '" --version';
  $process = proc_open($cmd, $descriptor, $pipes, NULL, NULL);
  if (is_resource($process)) {
    $content = stream_get_contents($pipes[1]);
    $out = preg_match('!.*?(\\d+\\.\\d+\\.\\d+).*$!m', $content, $matches);
    fclose($pipes[0]);
    fclose($pipes[1]);
    fclose($pipes[2]);
    $retval = proc_close($process);
  }
  return $matches[1];
}