Community
Learn
Tools Library
AI Tools
Leisure
search
English
Home Backend Development PHP Tutorial PHP code for calculating festivals, solar terms, and lunar calendar interchanges

PHP code for calculating festivals, solar terms, and lunar calendar interchanges

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB
WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB
Jul 25, 2016 am 08:56 AM
  2. /*
  3. * 农历 节气 节日
  4. * edit: bbs.it-home.org
  5. */
  7. class Lunar {
  8. var $MIN_YEAR = 1891;
  9. var $MAX_YEAR = 2100;
  10. var $lunarInfo = array(
  11. array(0,2,9,21936),array(6,1,30,9656),array(0,2,17,9584),array(0,2,6,21168),array(5,1,26,43344),array(0,2,13,59728),
  12. array(0,2,2,27296),array(3,1,22,44368),array(0,2,10,43856),array(8,1,30,19304),array(0,2,19,19168),array(0,2,8,42352),
  13. array(5,1,29,21096),array(0,2,16,53856),array(0,2,4,55632),array(4,1,25,27304),array(0,2,13,22176),array(0,2,2,39632),
  14. array(2,1,22,19176),array(0,2,10,19168),array(6,1,30,42200),array(0,2,18,42192),array(0,2,6,53840),array(5,1,26,54568),
  15. array(0,2,14,46400),array(0,2,3,54944),array(2,1,23,38608),array(0,2,11,38320),array(7,2,1,18872),array(0,2,20,18800),
  16. array(0,2,8,42160),array(5,1,28,45656),array(0,2,16,27216),array(0,2,5,27968),array(4,1,24,44456),array(0,2,13,11104),
  17. array(0,2,2,38256),array(2,1,23,18808),array(0,2,10,18800),array(6,1,30,25776),array(0,2,17,54432),array(0,2,6,59984),
  18. array(5,1,26,27976),array(0,2,14,23248),array(0,2,4,11104),array(3,1,24,37744),array(0,2,11,37600),array(7,1,31,51560),
  19. array(0,2,19,51536),array(0,2,8,54432),array(6,1,27,55888),array(0,2,15,46416),array(0,2,5,22176),array(4,1,25,43736),
  20. array(0,2,13,9680),array(0,2,2,37584),array(2,1,22,51544),array(0,2,10,43344),array(7,1,29,46248),array(0,2,17,27808),
  21. array(0,2,6,46416),array(5,1,27,21928),array(0,2,14,19872),array(0,2,3,42416),array(3,1,24,21176),array(0,2,12,21168),
  22. array(8,1,31,43344),array(0,2,18,59728),array(0,2,8,27296),array(6,1,28,44368),array(0,2,15,43856),array(0,2,5,19296),
  23. array(4,1,25,42352),array(0,2,13,42352),array(0,2,2,21088),array(3,1,21,59696),array(0,2,9,55632),array(7,1,30,23208),
  24. array(0,2,17,22176),array(0,2,6,38608),array(5,1,27,19176),array(0,2,15,19152),array(0,2,3,42192),array(4,1,23,53864),
  25. array(0,2,11,53840),array(8,1,31,54568),array(0,2,18,46400),array(0,2,7,46752),array(6,1,28,38608),array(0,2,16,38320),
  26. array(0,2,5,18864),array(4,1,25,42168),array(0,2,13,42160),array(10,2,2,45656),array(0,2,20,27216),array(0,2,9,27968),
  27. array(6,1,29,44448),array(0,2,17,43872),array(0,2,6,38256),array(5,1,27,18808),array(0,2,15,18800),array(0,2,4,25776),
  28. array(3,1,23,27216),array(0,2,10,59984),array(8,1,31,27432),array(0,2,19,23232),array(0,2,7,43872),array(5,1,28,37736),
  29. array(0,2,16,37600),array(0,2,5,51552),array(4,1,24,54440),array(0,2,12,54432),array(0,2,1,55888),array(2,1,22,23208),
  30. array(0,2,9,22176),array(7,1,29,43736),array(0,2,18,9680),array(0,2,7,37584),array(5,1,26,51544),array(0,2,14,43344),
  31. array(0,2,3,46240),array(4,1,23,46416),array(0,2,10,44368),array(9,1,31,21928),array(0,2,19,19360),array(0,2,8,42416),
  32. array(6,1,28,21176),array(0,2,16,21168),array(0,2,5,43312),array(4,1,25,29864),array(0,2,12,27296),array(0,2,1,44368),
  33. array(2,1,22,19880),array(0,2,10,19296),array(6,1,29,42352),array(0,2,17,42208),array(0,2,6,53856),array(5,1,26,59696),
  34. array(0,2,13,54576),array(0,2,3,23200),array(3,1,23,27472),array(0,2,11,38608),array(11,1,31,19176),array(0,2,19,19152),
  35. array(0,2,8,42192),array(6,1,28,53848),array(0,2,15,53840),array(0,2,4,54560),array(5,1,24,55968),array(0,2,12,46496),
  36. array(0,2,1,22224),array(2,1,22,19160),array(0,2,10,18864),array(7,1,30,42168),array(0,2,17,42160),array(0,2,6,43600),
  37. array(5,1,26,46376),array(0,2,14,27936),array(0,2,2,44448),array(3,1,23,21936),array(0,2,11,37744),array(8,2,1,18808),
  38. array(0,2,19,18800),array(0,2,8,25776),array(6,1,28,27216),array(0,2,15,59984),array(0,2,4,27424),array(4,1,24,43872),
  39. array(0,2,12,43744),array(0,2,2,37600),array(3,1,21,51568),array(0,2,9,51552),array(7,1,29,54440),array(0,2,17,54432),
  40. array(0,2,5,55888),array(5,1,26,23208),array(0,2,14,22176),array(0,2,3,42704),array(4,1,23,21224),array(0,2,11,21200),
  41. array(8,1,31,43352),array(0,2,19,43344),array(0,2,7,46240),array(6,1,27,46416),array(0,2,15,44368),array(0,2,5,21920),
  42. array(4,1,24,42448),array(0,2,12,42416),array(0,2,2,21168),array(3,1,22,43320),array(0,2,9,26928),array(7,1,29,29336),
  43. array(0,2,17,27296),array(0,2,6,44368),array(5,1,26,19880),array(0,2,14,19296),array(0,2,3,42352),array(4,1,24,21104),
  44. array(0,2,10,53856),array(8,1,30,59696),array(0,2,18,54560),array(0,2,7,55968),array(6,1,27,27472),array(0,2,15,22224),
  45. array(0,2,5,19168),array(4,1,25,42216),array(0,2,12,42192),array(0,2,1,53584),array(2,1,21,55592),array(0,2,9,54560)
  46. );
  47. /**
  48. * 将阳历转换为阴历
  49. * @param year 公历-年
  50. * @param month 公历-月
  51. * @param date 公历-日
  52. */
  53. function convertSolarToLunar($year,$month,$date){
  54. //debugger;
  55. $yearData = $this->lunarInfo[$year-$this->MIN_YEAR];
  56. if($year==$this->MIN_YEAR&&$month<=2&&$date<=9){
  57. return array(1891,'正月','初一','辛卯',1,1,'兔');
  58. }
  59. return $this->getLunarByBetween($year,$this->getDaysBetweenSolar($year,$month,$date,$yearData[1],$yearData[2]));
  60. }
  62. function convertSolarMonthToLunar($year,$month) {
  63. $yearData = $this->lunarInfo[$year-$this->MIN_YEAR];
  64. if($year==$this->MIN_YEAR&&$month<=2&&$date<=9){
  65. return array(1891,'正月','初一','辛卯',1,1,'兔');
  66. }
  67. $month_days_ary = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
  68. $dd = $month_days_ary[$month];
  69. if($this->isLeapYear($year) && $month == 2) $dd++;
  70. $lunar_ary = array();
  71. for ($i = 1; $i < $dd; $i++) {
  72. $array = $this->getLunarByBetween($year,$this->getDaysBetweenSolar($year, $month, $i, $yearData[1], $yearData[2]));
  73. $array[] = $year . '-' . $month . '-' . $i;
  74. $lunar_ary[$i] = $array;
  75. }
  76. return $lunar_ary;
  77. }
  78. /**
  79. * Convert lunar calendar to solar calendar
  80. * @param year lunar calendar - year
  81. * @param month lunar calendar - month, leap month processing: For example, if there is a leap month in May, then the second May will be passed to June, which is equivalent to 13 in the lunar calendar month, but sometimes the number of days in the 13th month is 0
  82. * @param date lunar calendar - day
  83. */
  84. function convertLunarToSolar($year,$month,$date){
  85. $yearData = $this->lunarInfo[$year-$this->MIN_YEAR];
  86. $between = $this->getDaysBetweenLunar($year,$month,$date);
  87. $res = mktime(0,0,0,$yearData[1],$yearData[2],$year);
  88. $res = date('Y-m-d', $res+$between*24*60*60);
  89. $day = explode('-', $res);
  90. $year = $day[0];
  91. $month= $day[1];
  92. $day = $day[2];
  93. return array($year, $month, $day);
  94. }
  95. /**
  96. * Determine whether it is a leap year
  97. * @param year
  98. */
  99. function isLeapYear($year){
  100. return (($year%4==0 && $year%100 !=0) || ($year%400==0));
  101. }
  102. /**
  103. * Get the year of the stems and branches
  104. * @param year
  105. */
  106. function getLunarYearName($year){
  107. $sky = array('庚','辛','壬','癸','甲','乙','丙','丁','戊','己');
  108. $earth = array('申','酉','戌','亥','子','丑','寅','卯','辰','巳','午','未');
  109. $year = $year.'';
  110. return $sky[$year{3}].$earth[$year%12];
  111. }
  112. /**
  113. * Get the zodiac sign according to the lunar year
  114. * @param year lunar year
  115. */
  116. function getYearZodiac($year){
  117. $zodiac = array('猴','鸡','狗','猪','鼠','牛','虎','兔','龙','蛇','马','羊');
  118. return $zodiac[$year%12];
  119. }
  120. /**
  121. * Get the number of days in the Gregorian calendar month
  122. * @param year Gregorian calendar-year
  123. * @param month Gregorian calendar-month
  124. */
  125. function getSolarMonthDays($year,$month){
  126. $monthHash = array('1'=>31,'2'=>$this->isLeapYear($year)?29:28,'3'=>31,'4'=>30,'5'=>31,'6'=>30,'7'=>31,'8'=>31,'9'=>30,'10'=>31,'11'=>30,'12'=>31);
  127. return $monthHash["$month"];
  128. }
  129. /**
  130. * Get the number of days in the lunar month
  131. * @param year lunar calendar - year
  132. * @param month lunar calendar - month, starting from January
  133. */
  134. function getLunarMonthDays($year,$month){
  135. $monthData = $this->getLunarMonths($year);
  136. return $monthData[$month-1];
  137. }
  138. /**
  139. * Get the array of days in each month of the lunar calendar
  140. * @param year
  141. */
  142. function getLunarMonths($year){
  143. $yearData = $this->lunarInfo[$year - $this->MIN_YEAR];
  144. $leapMonth = $yearData[0];
  145. $bit = decbin($yearData[3]);
  146. for ($i = 0; $i < strlen($bit);$i ++) {
  147. $bitArray[$i] = substr($bit, $i, 1);
  148. }
  149. for($k=0,$klen=16-count($bitArray);$k<$klen;$k++){
  150. array_unshift($bitArray, '0');
  151. }
  152. $bitArray = array_slice($bitArray,0,($leapMonth==0?12:13));
  153. for($i=0; $i $bitArray[$i] = $bitArray[$i] + 29;
  154. }
  155. return $bitArray;
  156. }
  157. /**
  158. * Get the number of days in each year of the lunar calendar
  159. * @param year lunar year
  160. */
  161. function getLunarYearDays($year){
  162. $yearData = $this->lunarInfo[$year-$this->MIN_YEAR];
  163. $monthArray = $this->getLunarYearMonths($year);
  164. $len = count($monthArray);
  165. return ($monthArray[$len-1]==0?$monthArray[$len-2]:$monthArray[$len-1]);
  166. }
  167. function getLunarYearMonths($year){
  168. //debugger;
  169. $monthData = $this->getLunarMonths($year);
  170. $res=array();
  171. $temp=0;
  172. $yearData = $this->lunarInfo[$year-$this->MIN_YEAR];
  173. $len = ($yearData[0]==0?12:13);
  174. for($i=0;$i<$len;$i++){
  175. $temp=0;
  176. for($j=0;$j<=$i;$j++){
  177. $temp+=$monthData[$j];
  178. }
  179. array_push($res, $temp);
  180. }
  181. return $res;
  182. }
  183. /**
  184. * Get leap month
  185. * @param year lunar year
  186. */
  187. function getLeapMonth($year){
  188. $yearData = $this->lunarInfo[$year-$this->MIN_YEAR];
  189. return $yearData[0];
  190. }
  191. /**
  192. * Calculate the number of days between the lunar date and the first day of the first lunar month
  193. * @param year
  194. * @param month
  195. * @param date
  196. */
  197. function getDaysBetweenLunar($year,$month,$date){
  198. $yearMonth = $this->getLunarMonths($year);
  199. $res=0;
  200. for($i=1;$i<$month;$i++){
  201. $res +=$yearMonth[$i-1];
  202. }
  203. $res+=$date-1;
  204. return $res;
  205. }
  206. /**
  207. * Calculate the number of days between two solar calendar dates
  208. * @param year The solar calendar year
  209. * @param cmonth
  210. * @param cdate
  211. * @param dmonth The solar calendar month corresponding to the first month of the lunar calendar
  212. * @param ddate The solar calendar corresponding to the first day of the lunar calendar Number of days
  213. */
  214. function getDaysBetweenSolar($year,$cmonth,$cdate,$dmonth,$ddate){
  215. $a = mktime(0,0,0,$cmonth,$cdate,$year);
  216. $b = mktime(0,0,0,$dmonth,$ddate,$year);
  217. return ceil(($a-$b)/24/3600);
  218. }
  219. /**
  220. * Calculate the lunar date based on the number of days from the first day of the first lunar month
  221. * @param year Gregorian year
  222. * @param between days
  223. */
  224. function getLunarByBetween($year,$between){
  225. //debugger;
  226. $lunarArray = array();
  227. $yearMonth=array();
  228. $t=0;
  229. $e=0;
  230. $leapMonth=0;
  231. $m='';
  232. if($between==0){
  233. array_push($lunarArray, $year,'正月','初一');
  234. $t = 1;
  235. $e = 1;
  236. }else{
  237. $year = $between>0? $year : ($year-1);
  238. $yearMonth = $this->getLunarYearMonths($year);
  239. $leapMonth = $this->getLeapMonth($year);
  240. $between = $between>0?$between : ($this->getLunarYearDays($year)+$between);
  241. for($i=0;$i<13;$i++){
  242. if($between==$yearMonth[$i]){
  243. $t=$i+2;
  244. $e=1;
  245. break;
  246. }else if($between<$yearMonth[$i]){
  247. $t=$i+1;
  248. $e=$between-(emptyempty($yearMonth[$i-1])?0:$yearMonth[$i-1])+1;
  249. break;
  250. }
  251. }
  252. $m = ($leapMonth!=0&&$t==$leapMonth+1)?('闰'.$this->getCapitalNum($t- 1,true)):$this->getCapitalNum(($leapMonth!=0&&$leapMonth+1<$t?($t-1):$t),true);
  253. array_push($lunarArray,$year,$m,$this->getCapitalNum($e,false));
  254. }
  255. array_push($lunarArray,$this->getLunarYearName($year));// 天干地支
  256. array_push($lunarArray,$t,$e);
  257. array_push($lunarArray,$this->getYearZodiac($year));// 12生肖
  258. array_push($lunarArray,$leapMonth);// 闰几月
  259. return $lunarArray;
  260. }
  261. /**
  262. * Get the lunar calendar name of the number
  263. * @param num number
  264. * @param isMonth whether it is the number of the month
  265. */
  266. function getCapitalNum($num,$isMonth){
  267. $isMonth = $isMonth || false;
  268. $dateHash=array('0'=>'','1'=> ;'One','2'=>'Two','3'=>'Three','4'=>'Four','5'=>'Five','6'=> ;'Six','7'=>'Seven','8'=>'Eight','9'=>'Nine','10'=>'Ten');
  269. $monthHash= array('0'=>'','1'=>'First month','2'=>'February','3'=>'March','4'=>' April','5'=>'May','6'=>'June','7'=>'July','8'=>'August','9 '=>'September','10'=>'October','11'=>'Winter Month','12'=>'Twelfth Month');
  270. $res='';
  271. if($isMonth){
  272. $res = $monthHash[$num];
  273. }else{
  274. if($num<=10){
  275. $res = 'Initial'.$dateHash[$num];
  276. }else if ($num>10&&$num<20){
  277. $res = '十'.$dateHash[$num-10];
  278. }else if($num==20){
  279. $res = "Twenty";
  280. }else if($num>20&&$num<30){
  281. $res = "忿".$dateHash[$num-20];
  282. }else if($num==30){
  283. $res = "Thirty" ";
  284. }
  285. }
  286. return $res;
  287. }
  289. /*
  290. * General algorithm for solar terms
  291. */
  292. function getJieQi($_year,$month,$day)
  293. {
  294. $year = substr($_year,- 2)+0;
  295. $coefficient = array(
  296. array(5.4055,2019,-1),//Xiaohan
  297. array(20.12,2082,1),//Dahan
  298. array(3.87),//The beginning of spring
  299. array( 18.74,2026,-1),//Rain
  300. array(5.63),//Jingzhe
  301. array(20.646,2084,1),//Vernal Equinox
  302. array(4.81),//Qingming
  303. array(20.1),// Guyu
  304. array(5.52,1911,1),//Lixia
  305. array(21.04,2008,1),//Xiaoman
  306. array(5.678,1902,1),//Mangzhong
  307. array(21.37,1928,1), //Summer Solstice
  308. array(7.108,2016,1),//Small Summer Season
  309. array(22.83,1922,1),//Great Summer Season
  310. array(7.5,2002,1),//Beginning of Autumn
  311. array(23.13),// Summer heat
  312. array(7.646,1927,1),//White dew
  313. array(23.042,1942,1),//Autumnal equinox
  314. array(8.318),//Cold dew
  315. array(23.438,2089,1),//Frostfall
  316. array(7.438,2089,1),//The beginning of winter
  317. array(22.36,1978,1),//Light snow
  318. array(7.18,1954,1),//Heavy snow
  319. array(21.94,2021,-1)// Winter Solstice
  320. );
  321. $term_name = array(
  322. "Little Cold", "Big Cold", "Beginning of Spring", "Rain", "Jingzhe", "Vernal Equinox", "Qingming", "Grain Rain",
  323. "Beginning of Summer", "Xiaoman" ","awn","summer solstice","little heat","big heat","beginning of autumn","end of heat",
  324. "white dew","autumnal equinox","cold dew","frost fall","beginning of winter","light snow" ,"Heavy Snow","Winter Solstice");
  326. $idx1 = ($month-1)*2;
  327. $_leap_value = floor(($year-1)/4);
  329. $day1 = floor($year* 0.2422+$coefficient[$idx1][0])-$_leap_value;
  330. if(isset($coefficient[$idx1][1])&&$coefficient[$idx1][1]==$_year)
  331. {
  332. $ day1 += $coefficient[$idx1][2];
  333. }
  334. $day2 = floor($year*0.2422+$coefficient[$idx1+1][0])-$_leap_value;
  335. if(isset($coefficient[ $idx1+1][1])&&$coefficient[$idx1+1][1]==$_year)
  336. {
  337. $day1 += $coefficient[$idx1+1][2];
  338. }
  339. // echo __FILE__.'->'.__LINE__.' $day1='.$day1,',$day2='.$day2.'
    '.chr(10);
  340. if($day= =$day1) return $term_name[$idx1];
  341. if($day==$day2) return $term_name[$idx1+1];
  342. return '';
  343. }
  345. /*
  346. * Get festival: special festivals can only modify this function to calculate
  347. */
  348. function getFestival($today, $nl_info = false,$config = 1)
  349. {
  350. if($config == 1)
  351. {
  352. $arr_lunar=array('01-01'=>'Spring Festival','01-15'=>'Lantern Festival','02-02'=>'February 2','05- 05'=>'Dragon Boat Festival','07-07'=>'Qixi Festival','08-15'=>'Mid-Autumn Festival','09-09'=>'Double Ninth Festival',' 12-08'=>'Laba Festival','12-23'=>'Little Year');
  353. $arr_solar=array('01-01'=>'New Year's Day','02-14'= >'Valentine's Day','03-12'=>'Arbor Day','04-01'=>'April Fool's Day','05-01'=>'Labor Day','06-01 '=>'Children's Day','10-01'=>'National Day','10-31'=>'Halloween','12-24'=>'Christmas Eve','12- 25'=>'Christmas');
  354. }//If you need different festivals, use different $config, and then configure $arr_lunar and $arr_solar
  356. $festivals = array();
  358. list($y,$ m,$d) = explode('-',$today);
  359. if(!$nl_info) $nl_info = $this->convertSolarToLunar($y,intval($m),intval($d));
  361. if($nl_info[7]>0&&$nl_info[7]<$nl_info[4]) $nl_info[4]-=1;
  362. $md_lunar = substr('0'.$nl_info[4],- 2).'-'.substr('0'.$nl_info[5],-2);
  363. $md_solar=substr_replace($today,'',0,5);
  365. isset($arr_lunar[$md_lunar] )?array_push($festivals, $arr_lunar[$md_lunar]):'';
  366. isset($arr_solar[$md_solar])?array_push($festivals, $arr_solar[$md_solar]):'';
  368. $glweek = date("w",strtotime($today)); //0-6
  370. if($m==5&&($d>7)&&($d<15)&&($glweek==0))array_push ($festivals, "Mother's Day");
  371. if($m==6&&($d>14)&&($d<22)&&($glweek==0))array_push($festivals,"Father's Day") ;
  373. $jieqi = $this->getJieQi($y,$m,$d);
  374. if($jieqi)array_push($festivals,$jieqi);
  375. return implode('/',$festivals);
  376. }
  377. }
  378. header("Content-Type:text/html;charset=utf-8");
  379. $lunar=new Lunar();//
  380. $month=$lunar->convertSolarToLunar (2013,07,08);//Convert solar calendar to lunar calendar
  381. echo '
    ';
  382. print_r($month);
Copy code

Print result:

Array ( [0] => 2013 [1] => May [2] => thirty [3] => Guisi [4] => 5 [5] => 30 [6] => snake [7] => 0 )


Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Show More

Hot Article

Roblox: Grow A Garden - Complete Mutation Guide
3 weeks ago By DDD
Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
How to fix KB5055612 fails to install in Windows 10?
3 weeks ago By DDD
Nordhold: Fusion System, Explained
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Mandragora: Whispers Of The Witch Tree - How To Unlock The Grappling Hook
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Show More

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Show More

Hot Topics

Java Tutorial
1665
14
CakePHP Tutorial
1424
52
Laravel Tutorial
1322
25
PHP Tutorial
1270
29
C# Tutorial
1250
24
Show More
Related knowledge
Explain secure password hashing in PHP (e.g., password_hash, password_verify). Why not use MD5 or SHA1? Explain secure password hashing in PHP (e.g., password_hash, password_verify). Why not use MD5 or SHA1? Apr 17, 2025 am 12:06 AM

In PHP, password_hash and password_verify functions should be used to implement secure password hashing, and MD5 or SHA1 should not be used. 1) password_hash generates a hash containing salt values ​​to enhance security. 2) Password_verify verify password and ensure security by comparing hash values. 3) MD5 and SHA1 are vulnerable and lack salt values, and are not suitable for modern password security.

PHP and Python: Comparing Two Popular Programming Languages PHP and Python: Comparing Two Popular Programming Languages Apr 14, 2025 am 12:13 AM

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP in Action: Real-World Examples and Applications PHP in Action: Real-World Examples and Applications Apr 14, 2025 am 12:19 AM

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP: A Key Language for Web Development PHP: A Key Language for Web Development Apr 13, 2025 am 12:08 AM

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

The Enduring Relevance of PHP: Is It Still Alive? The Enduring Relevance of PHP: Is It Still Alive? Apr 14, 2025 am 12:12 AM

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.

How does PHP type hinting work, including scalar types, return types, union types, and nullable types? How does PHP type hinting work, including scalar types, return types, union types, and nullable types? Apr 17, 2025 am 12:25 AM

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values ​​and handle functions that may return null values.

PHP and Python: Code Examples and Comparison PHP and Python: Code Examples and Comparison Apr 15, 2025 am 12:07 AM

PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.

PHP vs. Other Languages: A Comparison PHP vs. Other Languages: A Comparison Apr 13, 2025 am 12:19 AM

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

See all articles