(PHP 4, PHP 5, PHP 7)
jdtojewish — Converts a Julian day count to a Jewish calendar date
$juliandaycount
   [, bool $hebrew = FALSE
   [, int $fl = 0
  ]] ) : stringConverts a Julian Day Count to the Jewish Calendar.
juliandayA julian day number as integer
hebrew
       If the hebrew parameter is set to TRUE, the
       fl parameter is used for Hebrew, ISO-8859-8 encoded string based,
       output format.  
      
fl
       A bitmask which may consist of
       CAL_JEWISH_ADD_ALAFIM_GERESH,
       CAL_JEWISH_ADD_ALAFIM and
       CAL_JEWISH_ADD_GERESHAYIM.
      
   The Jewish date as a string in the form "month/day/year", or an ISO-8859-8
   encoded Hebrew date string, according to the hebrew
   parameter.
  
Example #1 jdtojewish() Example
<?php
$jd = gregoriantojd(10, 8, 2002);
echo jdtojewish($jd, true), PHP_EOL,
     jdtojewish($jd, true, CAL_JEWISH_ADD_GERESHAYIM), PHP_EOL,
     jdtojewish($jd, true, CAL_JEWISH_ADD_ALAFIM), PHP_EOL,
     jdtojewish($jd, true,CAL_JEWISH_ADD_ALAFIM_GERESH), PHP_EOL;
?>
The above example will output:
ב חשון התשסג ב' חשון התשס"ג ב חשון ה אלפים תשסג ב חשון ה'תשסג