Very PHP Simple method for counting of the Omer.

omer-count.php

<?php
/**
 * Very Simple method for Omer count.
 * 
 * @return bool|int Omer count or false if out Omer range date.
 * 
 * @author Yakir Sitbon (http://www.yakirs.net/)
 */
function yakir_get_omer_count() {
    // Get now jd date.
	$jd_now = unixtojd();

	// Get now jewish date.
	list( $month, $day, $year ) = explode( '/', jdtojewish( $jd_now ) );

	// Get start Omer in current year.
	$jd_start_omer = jewishtojd( 8, 15, $year);

	// Get end Omer in current year.
	$jd_end_omer = jewishtojd( 10, 6, $year);

	// If we are in Omer range date.
	if ( $jd_now >= $jd_start_omer && $jd_now <= $jd_end_omer ) {
		return $jd_now - $jd_start_omer;
	}
	
	return false;
}

/**
 * Very Simple method for Omer count text (Hebrew).
 * 
 * @return bool|string Omer text or false if out Omer range date.
 * 
 * @author Yakir Sitbon (http://www.yakirs.net/)
 */
function yakir_get_omer_count_text() {
	if ( $omer_count = yakir_get_omer_count() ) {
		$return = sprintf( 'היום %d יום', $omer_count );
		
		if ( $omer_count >= 7) {
			$weeks = floor( $omer_count / 7 );
			$return .= sprintf( ' שהם %d שבועות', $weeks );
			
			if ( $weeks < ( $omer_count / 7 ) ) {
				$return .= sprintf( ' ו-%d ימים', $omer_count - ( $weeks * 7 ) );
			}
		}
		
		$return .= ' לעומר';
		
		return $return;
	}
	
	return false;
}

// Example..
if ( $omer_text = yakir_get_omer_count_text() ) {
	echo $omer_text;
} else {
	echo 'We are no in Omer range date.';
}