<?php

///////////////////////////////////////////////////////////////
// PHPagination v1.0 by Dan Palka, the most powerful wizard. //
// http://www.phpagination.com                               //
///////////////////////////////////////////////////////////////

function PHPagination($pCurrent, $pEnd, $PHPagi_urlPre, $PHPagi_urlPost, $PHPagi_uMultiplier = 1, $PHPagi_doArrows = FALSE) {

/////////////////////////////////////////////////
// LAYOUT SETTINGS - CHANGE TO SUIT YOUR NEEDS //
/////////////////////////////////////////////////
	
	$PHPagi_htmlPre = '<div class="PHPagination">';     // Precedes pagination output. Default is '<div class="PHPagination">'.
	$PHPagi_htmlPost = '</div>';                        // Suceeds pagination output. Default is '</div>'.
	$PHPagi_htmlDivider = '|';                          // Separates results. Default is '|'.
	$PHPagi_htmlOmission = '&hellip;';                  // Replaces omitted results. Default is '$hellip;'.
	$PHPagin_sPage1 = ' <strong>Page ';                 // Goes before current page. Default is ' <strong>Page '.
	$PHPagin_sPage2 = ' of ';                           // Goes between current page and total pages. Default is ' of '.
	$PHPagin_s_Page3 = '</strong> ';                    // Goes after total pages. Default is '</strong> '.
	$PHPagi_leftArrow = '&laquo;';                     // The left arrow. Default is '&laquo;'.
	$PHPagi_rightArrow = '&raquo;';                    // The right arrow. Default is '&raquo;'.
	
//////////////////////////////////////////
// DON'T CHANGE ANYTHING BELOW THIS BOX //
//////////////////////////////////////////
	
	// Begin the PHPagination output.
	$pOutput = $PHPagi_htmlPre;
	
	// Check $pCurrent.
	if(is_numeric($pCurrent) == FALSE || $pCurrent < -1) {
		$pOutput = $pOutput . 'PHPagination Error: Current page' . $PHPagi_htmlPost;
		return $pOutput;
	}
	
	// Check $pTotal.
	if(is_numeric($pEnd) == FALSE || $pEnd < 0) {
		$pOutput = $pOutput . 'PHPagination Error: End page' . $PHPagi_htmlPost;
		return $pOutput;
	}
	
	// Check if current page is outside the range of pages.
	if($pCurrent > $pEnd) {
		// Return a nicely formatted error
		$pOutput = $pOutput . 'PHPagination Error: Current page is greater than end page' . $PHPagi_htmlPost;
		return $pOutput;
	}
	
	$pCurrent = floor($pCurrent / $PHPagi_uMultiplier);
	$pEnd = floor($pEnd / $PHPagi_uMultiplier);
	
	// Create "Page x of x" string since it's the same no matter what.
	$pPageXofX = $PHPagin_sPage1 . number_format($pCurrent + 1) . $PHPagin_sPage2 . number_format($pEnd + 1) . $PHPagin_s_Page3;
	
	// Build reusable chunks of hyperlink.
	$pLink1 = ' <a href="' . $PHPagi_urlPre;
	$pLink2 = $PHPagi_urlPost . '">';
	$pLink3 = '</a> ';
	
	// Do we need a left arrow?
	if($PHPagi_doArrows == TRUE && $pCurrent > 0) {
		$pOutput = $pOutput . $pLink1 . (($pCurrent - 1) * $PHPagi_uMultiplier) . $pLink2 . $PHPagi_leftArrow . $pLink3 . $PHPagi_htmlDivider;
	}
	
	// How many result units do we want?
	if($pEnd >= 14) {
		$pUnits = 14;
	} else {
		$pUnits = $pEnd;
	}
	
	// Which ellipses do we need?
	if (($pEnd - $pUnits) >= 2) {
		if ($pCurrent >= 8 && $pCurrent <= ($pEnd - 8)) {
			$firstEllipsis = TRUE;
			$secondEllipsis = TRUE;
		} elseif ($pCurrent >= 8 && $pCurrent >= ($pEnd - 7)) {
			$firstEllipsis = TRUE;
			$secondEllipsis = FALSE;
		} else {
			$firstEllipsis = FALSE;
			$secondEllipsis = TRUE;
		}
	} elseif (($pEnd - $pUnits) == 1) {
		if ($pCurrent >= 8) {
			$firstEllipsis = TRUE;
			$secondEllipsis = FALSE;
		} else {
			$firstEllipsis = FALSE;
			$secondEllipsis = TRUE;
		}
	} else {
		$firstEllipsis = FALSE;
		$secondEllipsis = FALSE;
	}
	
	// Where is PageXofX located?
	if ($firstEllipsis == TRUE && $secondEllipsis == TRUE) {
		$pageLocation = 7;
	} elseif ($firstEllipsis == TRUE) {
		$pageLocation = (14 - ($pEnd - $pCurrent));
	} elseif ($firstEllipsis == FALSE && $pCurrent >= 0) {
		$pageLocation = $pCurrent;
	} else {
		$pageLocation = -1;
	}
	
	// Loop through each result unit.
	for($i = 0; $i <= $pUnits; $i++) {
		if ($i == 3 && $firstEllipsis == TRUE) {
			$pOutput = $pOutput . $PHPagi_htmlOmission;
			$thisIsAnEllipsis = TRUE;
		} elseif ($i == 11 && $secondEllipsis == TRUE) {
			$pOutput = $pOutput . $PHPagi_htmlOmission;
			$thisIsAnEllipsis = TRUE;
		} else {
			$thisIsAnEllipsis = FALSE;
		}
		
		if ($thisIsAnEllipsis == FALSE) {
			if ($i > 0) {
				if ($firstEllipsis == TRUE && $i == 4) {
				} elseif ($secondEllipsis == TRUE && $i == 12) {
				} else {
					$pOutput = $pOutput . $PHPagi_htmlDivider;
				}
			}
			if ($pageLocation == $i) {
				$pOutput = $pOutput . $pPageXofX;
			} elseif ($thisIsAnEllipsis == FALSE) {
				if ($i <= 2) {
					$pOutput = $pOutput . $pLink1 . ($i * $PHPagi_uMultiplier) . $pLink2 . number_format($i + 1) . $pLink3;
				} elseif ($i >= 3 && $i <= 11) {
					if ($firstEllipsis == TRUE && $secondEllipsis == TRUE) {
						$pOutput = $pOutput . $pLink1 . (($pCurrent - (7 - $i)) * $PHPagi_uMultiplier) . $pLink2 . number_format(($pCurrent - (7 - $i)) + 1) . $pLink3;
					} elseif ($firstEllipsis == TRUE && $secondEllipsis == FALSE) {
						$pOutput = $pOutput . $pLink1 . (($pEnd - (14 - $i)) * $PHPagi_uMultiplier) . $pLink2 . number_format(($pEnd - (14 - $i)) + 1) . $pLink3;
					} elseif ($firstEllipsis == FALSE && $secondEllipsis == TRUE) {
						$pOutput = $pOutput . $pLink1 . ($i * $PHPagi_uMultiplier) . $pLink2 . number_format($i + 1) . $pLink3;
					} else {
						$pOutput = $pOutput . $pLink1 . ($i * $PHPagi_uMultiplier) . $pLink2 . number_format($i + 1) . $pLink3;
					}
				} elseif ($i >= 12) {
					$pOutput = $pOutput . $pLink1 . (($pEnd - (14 - $i)) * $PHPagi_uMultiplier) . $pLink2 . number_format(($pEnd - (14 - $i)) + 1) . $pLink3;
				}
			}
		}
	}
	
	// Do we need a right arrow?
	if($PHPagi_doArrows == TRUE && $pCurrent < $pEnd) {
		$pOutput = $pOutput . $PHPagi_htmlDivider . $pLink1 . (($pCurrent + 1) * $PHPagi_uMultiplier) . $pLink2 . $PHPagi_rightArrow . $pLink3;
	}
	
	// End the PHPagination output.
	$pOutput = $pOutput . $PHPagi_htmlPost;
	
	return $pOutput;
	
}

?>