There's probably a simpler way to do this, but I needed to convert a Gregorian date to a Hebrew one and display it with the Hebrew month name (not the number).
Perhaps it can help somebody...
<?
$jdDate = gregoriantojd ( $gregorianMonth, $gregorianDay, $gregorianYear);
$gregorianMonthName = jdmonthname ( $jdDate, 1 );
$hebrewDate = jdtojewish ($jdDate);
list ($hebrewMonth, $hebrewDay, $hebrewYear) = split ('/', $hebrewDate);
$hebrewMonthName = jdmonthname ( $jdDate, 4);
echo "Your date in Hebrew would read: $hebrewDay $hebrewMonthName $hebrewYear";
?>