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functions.php
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functions.php
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<?php
/**
* Parst die unterschiedlichen Tabellen einer Seite
* @param [type] $url [description]
* @return [type] [description]
*/
function getDetailView($url) {
$details['name'] = trim(getHTMLObj($url)->find('.breadcrumb', 0)->find('span[itemprop=name]', -1)->plaintext);
$details['weburl'] = $url;
$details['menu'] = tablesToArr(getHTMLObj($url)->find('div[itemprop=articleBody] div.moduletable', 0));
return $details;
}
/**
* Nächste Woche funktioniert noch nicht, weil Datum nicht ermittelt wird...
* @param [type] $obj [description]
* @return [type] [description]
*/
function tablesToArr($obj) {
$arr = array();
$timeframe = explode(" - ", trim($obj->find('> text', 2), " \t\n\r\0\x0B()"));
$dates[0] = createDateRangeArray($timeframe[0], $timeframe[1]);
//$dates[1] = createDateRangeArray("14.12.15", "18.12.15");
$tables = $obj->find('table');
if (array_key_exists(0, $tables) && array_key_exists(1, $tables) && array_key_exists(0, $dates) && array_key_exists(1, $dates)) {
return array_merge(tableToArr($tables[0], $dates[0]), tableToArr($tables[1], $dates[1]));
}
elseif (array_key_exists(0, $tables) && array_key_exists(0, $dates)) {
return tableToArr($tables[0], $dates[0]);
}
else {
return false;
}
}
/**
* Das eigentliche Parsen der Tabelle
* @param [type] $table [description]
* @param [type] $dates [description]
* @return [type] [description]
*/
function tableToArr($table, $dates) {
foreach ($table->find('tr') as $rowNo => $row) {
if ($rowNo == 0) continue;
foreach ($row->find('td') as $clmNo => $clm) {
if ($clmNo == 0) {
$categoryPrice = trim(preg_replace('/^\D*/', '', $clm->plaintext));
$category = trim(str_replace(array($categoryPrice, "-\r\n ", "\t", "\r", "\n", " ", " "), '', $clm->plaintext));
}
else {
foreach ($clm->find('div.speise_eintrag') as $article) {
if (empty($article)) continue;
$title = $article->plaintext;
$allergies = $price = array();
preg_match('/\(([0-9A-Za-z,]+)\)/', $title, $allergies); // Matcht eingeklammerten Text
// Parse Allergiestoffe
if (array_key_exists(1, $allergies)) $title = str_replace($allergies[0], '', $title);
// entferne Allergiestoffe aus Titel
$allergies = (array_key_exists(1, $allergies) ? explode(",", trim($allergies[0], "()")) : NULL);
preg_match('/(\d{1,2},\d{2})/', $title, $price); // Matcht Dezimalzahlen
// Parse den Preis
if (array_key_exists(1, $price)) $title = str_replace($price[1], '', $title); // entferne Preis aus Titel
$price = (empty($price[1]) ? $categoryPrice : $price[1]);
$title = trim(str_replace(" ", " ", $title));
$price = tofloat($price);
if (!array_key_exists($clmNo - 1, $dates) || empty($category) || empty($title)) continue;
$arr[$dates[$clmNo - 1]][$category][] = array(
'name' => $title,
'price' => $price,
'allergies' => $allergies
);
unset($title, $price, $allergies);
}
}
}
}
return $arr;
}
/**
* Ermittelt die URIs der Mensastandorte
* @param [type] $url URI der Übersicht
* @return [type] [description]
*/
function getOverView($url) {
$links = array();
$firstTitle = true;
foreach (getHTMLObj($url)->find('div[itemprop=articleBody] tr') as $row) {
$link = $row->find('td a', 0);
if ($link) {
$slug = str_replace(explode("%s", DETAILVIEW_URI), "", $link->attr['href']);
$links[sanitize_title_with_dashes($slug)] = array(
'name' => $link->attr['title'],
'url' => SCRIPT_URL.$slug,
'weburl' => WEBSITE.$link->attr['href']
);
}
elseif ($firstTitle && $row->find('td h5', 0)) {
$firstTitle = false;
}
else {
break;
}
}
return $links;
}
/**
* Parst eine URL und gibt deren HTML als Objekt aus. Wenn es eine relative URL ist wird die Konstante WEBSITE davor gehängt
* @param [type] $url [description]
* @return [type] [description]
*/
function getHTMLObj($url) {
if (filter_var($url, FILTER_VALIDATE_URL) === FALSE) $url = WEBSITE . $url;
if (filter_var($url, FILTER_VALIDATE_URL) === FALSE) return false;
$output = file_get_html($url);
return $output;
}
/**
* Frage JSON Code von URL aus Datei oder vom Server ab
* @param [type] $url [description]
* @return [type] [description]
*/
function getJson($url, $age = '120 minutes') {
$cacheFile = 'cache' . DIRECTORY_SEPARATOR . md5($url) . ".json";
if (file_exists($cacheFile)) {
$fh = fopen($cacheFile, 'r');
$cacheTime = trim(filemtime($cacheFile));
// Wenn Datei vor unter X Minuten erzeugt wurde, gib einfach die Datei aus
if ($cacheTime > strtotime('-' . $age)) {
return fread($fh, filesize($cacheFile));
}
// andernfalls wird die Datei gelöscht
fclose($fh);
unlink($cacheFile);
}
if ($url == WEBSITE.OVERVIEW_URI) {
$json = json_encode(getOverView($url));
} else {
// Generierung der JSON Daten
$json = json_encode(getDetailView($url));
}
// Speicherung
$fh = fopen($cacheFile, 'w');
fwrite($fh, $json);
fclose($fh);
return $json;
}
/**
* Wordpress Funktion um Titel von Großschreibung und Sonderzeichen zu befreien
* @param [type] $title [description]
* @return [type] [description]
*/
function sanitize_title_with_dashes($title) {
$title = strip_tags($title);
// Preserve escaped octets.
$title = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '---$1---', $title);
// Remove percent signs that are not part of an octet.
$title = str_replace('%', '', $title);
// Restore octets.
$title = preg_replace('|---([a-fA-F0-9][a-fA-F0-9])---|', '%$1', $title);
$title = remove_accents($title);
if (seems_utf8($title)) {
if (function_exists('mb_strtolower')) {
$title = mb_strtolower($title, 'UTF-8');
}
}
$title = strtolower($title);
$title = preg_replace('/&.+?;/', '', $title);
// kill entities
$title = preg_replace('/[^%a-z0-9 _-]/', '', $title);
$title = preg_replace('/\s+/', '-', $title);
$title = preg_replace('|-+|', '-', $title);
$title = trim($title, '-');
return $title;
}
/**
* Ermittelt die Datums zwischen zwei Datums
* @param string $strDateFrom d.m.y 20.10.05
* @param string $strDateTo d.m.y 20.10.05
* @return array Array of strings (Y-m-d 2005-10-20)
*/
function createDateRangeArray($strDateFrom, $strDateTo) {
$aryRange = array();
$iDateFrom = mktime(1, 0, 0, substr($strDateFrom, 3, 2), substr($strDateFrom, 0, 2), substr($strDateFrom, 6, 2));
$iDateTo = mktime(1, 0, 0, substr($strDateTo, 3, 2), substr($strDateTo, 0, 2), substr($strDateTo, 6, 2));
if ($iDateTo >= $iDateFrom) {
array_push($aryRange, date('Y-m-d', $iDateFrom));
// first entry
while ($iDateFrom < $iDateTo) {
$iDateFrom+= 86400;
// add 24 hours
array_push($aryRange, date('Y-m-d', $iDateFrom));
}
}
return $aryRange;
}
/**
* Converts all accent characters to ASCII characters.
*
* If there are no accent characters, then the string given is just returned.
*
* @param string $string Text that might have accent characters
* @return string Filtered string with replaced "nice" characters.
*/
function remove_accents($string) {
if (!preg_match('/[\x80-\xff]/', $string)) return $string;
if (seems_utf8($string)) {
$chars = array(
// Decompositions for Latin-1 Supplement
chr(195) . chr(128) => 'A', chr(195) . chr(129) => 'A', chr(195) . chr(130) => 'A', chr(195) . chr(131) => 'A', chr(195) . chr(132) => 'A', chr(195) . chr(133) => 'A', chr(195) . chr(135) => 'C', chr(195) . chr(136) => 'E', chr(195) . chr(137) => 'E', chr(195) . chr(138) => 'E', chr(195) . chr(139) => 'E', chr(195) . chr(140) => 'I', chr(195) . chr(141) => 'I', chr(195) . chr(142) => 'I', chr(195) . chr(143) => 'I', chr(195) . chr(145) => 'N', chr(195) . chr(146) => 'O', chr(195) . chr(147) => 'O', chr(195) . chr(148) => 'O', chr(195) . chr(149) => 'O', chr(195) . chr(150) => 'O', chr(195) . chr(153) => 'U', chr(195) . chr(154) => 'U', chr(195) . chr(155) => 'U', chr(195) . chr(156) => 'U', chr(195) . chr(157) => 'Y', chr(195) . chr(159) => 's', chr(195) . chr(160) => 'a', chr(195) . chr(161) => 'a', chr(195) . chr(162) => 'a', chr(195) . chr(163) => 'a', chr(195) . chr(164) => 'a', chr(195) . chr(165) => 'a', chr(195) . chr(167) => 'c', chr(195) . chr(168) => 'e', chr(195) . chr(169) => 'e', chr(195) . chr(170) => 'e', chr(195) . chr(171) => 'e', chr(195) . chr(172) => 'i', chr(195) . chr(173) => 'i', chr(195) . chr(174) => 'i', chr(195) . chr(175) => 'i', chr(195) . chr(177) => 'n', chr(195) . chr(178) => 'o', chr(195) . chr(179) => 'o', chr(195) . chr(180) => 'o', chr(195) . chr(181) => 'o', chr(195) . chr(182) => 'o', chr(195) . chr(182) => 'o', chr(195) . chr(185) => 'u', chr(195) . chr(186) => 'u', chr(195) . chr(187) => 'u', chr(195) . chr(188) => 'u', chr(195) . chr(189) => 'y', chr(195) . chr(191) => 'y',
// Decompositions for Latin Extended-A
chr(196) . chr(128) => 'A', chr(196) . chr(129) => 'a', chr(196) . chr(130) => 'A', chr(196) . chr(131) => 'a', chr(196) . chr(132) => 'A', chr(196) . chr(133) => 'a', chr(196) . chr(134) => 'C', chr(196) . chr(135) => 'c', chr(196) . chr(136) => 'C', chr(196) . chr(137) => 'c', chr(196) . chr(138) => 'C', chr(196) . chr(139) => 'c', chr(196) . chr(140) => 'C', chr(196) . chr(141) => 'c', chr(196) . chr(142) => 'D', chr(196) . chr(143) => 'd', chr(196) . chr(144) => 'D', chr(196) . chr(145) => 'd', chr(196) . chr(146) => 'E', chr(196) . chr(147) => 'e', chr(196) . chr(148) => 'E', chr(196) . chr(149) => 'e', chr(196) . chr(150) => 'E', chr(196) . chr(151) => 'e', chr(196) . chr(152) => 'E', chr(196) . chr(153) => 'e', chr(196) . chr(154) => 'E', chr(196) . chr(155) => 'e', chr(196) . chr(156) => 'G', chr(196) . chr(157) => 'g', chr(196) . chr(158) => 'G', chr(196) . chr(159) => 'g', chr(196) . chr(160) => 'G', chr(196) . chr(161) => 'g', chr(196) . chr(162) => 'G', chr(196) . chr(163) => 'g', chr(196) . chr(164) => 'H', chr(196) . chr(165) => 'h', chr(196) . chr(166) => 'H', chr(196) . chr(167) => 'h', chr(196) . chr(168) => 'I', chr(196) . chr(169) => 'i', chr(196) . chr(170) => 'I', chr(196) . chr(171) => 'i', chr(196) . chr(172) => 'I', chr(196) . chr(173) => 'i', chr(196) . chr(174) => 'I', chr(196) . chr(175) => 'i', chr(196) . chr(176) => 'I', chr(196) . chr(177) => 'i', chr(196) . chr(178) => 'IJ', chr(196) . chr(179) => 'ij', chr(196) . chr(180) => 'J', chr(196) . chr(181) => 'j', chr(196) . chr(182) => 'K', chr(196) . chr(183) => 'k', chr(196) . chr(184) => 'k', chr(196) . chr(185) => 'L', chr(196) . chr(186) => 'l', chr(196) . chr(187) => 'L', chr(196) . chr(188) => 'l', chr(196) . chr(189) => 'L', chr(196) . chr(190) => 'l', chr(196) . chr(191) => 'L', chr(197) . chr(128) => 'l', chr(197) . chr(129) => 'L', chr(197) . chr(130) => 'l', chr(197) . chr(131) => 'N', chr(197) . chr(132) => 'n', chr(197) . chr(133) => 'N', chr(197) . chr(134) => 'n', chr(197) . chr(135) => 'N', chr(197) . chr(136) => 'n', chr(197) . chr(137) => 'N', chr(197) . chr(138) => 'n', chr(197) . chr(139) => 'N', chr(197) . chr(140) => 'O', chr(197) . chr(141) => 'o', chr(197) . chr(142) => 'O', chr(197) . chr(143) => 'o', chr(197) . chr(144) => 'O', chr(197) . chr(145) => 'o', chr(197) . chr(146) => 'OE', chr(197) . chr(147) => 'oe', chr(197) . chr(148) => 'R', chr(197) . chr(149) => 'r', chr(197) . chr(150) => 'R', chr(197) . chr(151) => 'r', chr(197) . chr(152) => 'R', chr(197) . chr(153) => 'r', chr(197) . chr(154) => 'S', chr(197) . chr(155) => 's', chr(197) . chr(156) => 'S', chr(197) . chr(157) => 's', chr(197) . chr(158) => 'S', chr(197) . chr(159) => 's', chr(197) . chr(160) => 'S', chr(197) . chr(161) => 's', chr(197) . chr(162) => 'T', chr(197) . chr(163) => 't', chr(197) . chr(164) => 'T', chr(197) . chr(165) => 't', chr(197) . chr(166) => 'T', chr(197) . chr(167) => 't', chr(197) . chr(168) => 'U', chr(197) . chr(169) => 'u', chr(197) . chr(170) => 'U', chr(197) . chr(171) => 'u', chr(197) . chr(172) => 'U', chr(197) . chr(173) => 'u', chr(197) . chr(174) => 'U', chr(197) . chr(175) => 'u', chr(197) . chr(176) => 'U', chr(197) . chr(177) => 'u', chr(197) . chr(178) => 'U', chr(197) . chr(179) => 'u', chr(197) . chr(180) => 'W', chr(197) . chr(181) => 'w', chr(197) . chr(182) => 'Y', chr(197) . chr(183) => 'y', chr(197) . chr(184) => 'Y', chr(197) . chr(185) => 'Z', chr(197) . chr(186) => 'z', chr(197) . chr(187) => 'Z', chr(197) . chr(188) => 'z', chr(197) . chr(189) => 'Z', chr(197) . chr(190) => 'z', chr(197) . chr(191) => 's',
// Euro Sign
chr(226) . chr(130) . chr(172) => 'E',
// GBP (Pound) Sign
chr(194) . chr(163) => '');
$string = strtr($string, $chars);
}
else {
// Assume ISO-8859-1 if not UTF-8
$chars['in'] = chr(128) . chr(131) . chr(138) . chr(142) . chr(154) . chr(158) . chr(159) . chr(162) . chr(165) . chr(181) . chr(192) . chr(193) . chr(194) . chr(195) . chr(196) . chr(197) . chr(199) . chr(200) . chr(201) . chr(202) . chr(203) . chr(204) . chr(205) . chr(206) . chr(207) . chr(209) . chr(210) . chr(211) . chr(212) . chr(213) . chr(214) . chr(216) . chr(217) . chr(218) . chr(219) . chr(220) . chr(221) . chr(224) . chr(225) . chr(226) . chr(227) . chr(228) . chr(229) . chr(231) . chr(232) . chr(233) . chr(234) . chr(235) . chr(236) . chr(237) . chr(238) . chr(239) . chr(241) . chr(242) . chr(243) . chr(244) . chr(245) . chr(246) . chr(248) . chr(249) . chr(250) . chr(251) . chr(252) . chr(253) . chr(255);
$chars['out'] = "EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy";
$string = strtr($string, $chars['in'], $chars['out']);
$double_chars['in'] = array(chr(140), chr(156), chr(198), chr(208), chr(222), chr(223), chr(230), chr(240), chr(254));
$double_chars['out'] = array('OE', 'oe', 'AE', 'DH', 'TH', 'ss', 'ae', 'dh', 'th');
$string = str_replace($double_chars['in'], $double_chars['out'], $string);
}
return $string;
}
function seems_utf8($str) {
$length = strlen($str);
for ($i = 0; $i < $length; $i++) {
$c = ord($str[$i]);
if ($c < 0x80) $n = 0; // 0bbbbbbb
elseif (($c & 0xE0) == 0xC0) $n = 1; // 110bbbbb
elseif (($c & 0xF0) == 0xE0) $n = 2; // 1110bbbb
elseif (($c & 0xF8) == 0xF0) $n = 3; // 11110bbb
elseif (($c & 0xFC) == 0xF8) $n = 4; // 111110bb
elseif (($c & 0xFE) == 0xFC) $n = 5; // 1111110b
else return false; // Does not match any model
for ($j = 0; $j < $n; $j++) { // n bytes matching 10bbbbbb follow ?
if ((++$i == $length) || ((ord($str[$i]) & 0xC0) != 0x80)) return false;
}
}
return true;
}
/**
* Sucht den letzten Punkt oder das letzte Komma und nutzt das als Dezimaltrennzeichen
* @param string $num 1,02 oder 1.02
* @return float
*/
function tofloat($num) {
$dotPos = strrpos($num, '.');
$commaPos = strrpos($num, ',');
$sep = (($dotPos > $commaPos) && $dotPos) ? $dotPos : ((($commaPos > $dotPos) && $commaPos) ? $commaPos : false);
if (!$sep) {
return floatval(preg_replace("/[^0-9]/", "", $num));
}
return floatval(preg_replace("/[^0-9]/", "", substr($num, 0, $sep)) . '.' . preg_replace("/[^0-9]/", "", substr($num, $sep + 1, strlen($num))));
}