PHP房贷计算器代码，等额本息，等额本金

debx(); ???????????function debx() ?????{ ?????????$dkm ????= 240; //贷款月数，20年就是240个月 ?????????$dkTotal = 10000; //贷款总额 ?????????$dknl ???= 0.0515; ?//贷款年利率 ?????????$emTotal = $dkTotal * $dknl / 12 * pow(1 + $dknl / 12, $dkm) / (pow(1 + $dknl / 12, $dkm) - 1); //每月还款金额 ?????????$lxTotal = 0; //总利息 ?????????for ($i = 0; $i < $dkm; $i++) { ?????????????$lx ?????= $dkTotal * $dknl / 12; ??//每月还款利息 ?????????????$em ?????= $emTotal - $lx; ?//每月还款本金 ?????????????echo "第" . ($i + 1) . "期", " 本金:", $em, " 利息:" . $lx, " 总额:" . $emTotal, "<br />"; ?????????????$dkTotal = $dkTotal - $em; ?????????????$lxTotal = $lxTotal + $lx; ?????????} ?????????echo "总利息:" . $lxTotal; ?????} ?????????????????function debj() ?????{ ?????????$dkm ????= 240; //贷款月数，20年就是240个月 ?????????$dkTotal = 10000; //贷款总额 ?????????$dknl ???= 0.0515; ?//贷款年利率 ????????????????????$em ?????= $dkTotal / $dkm; //每个月还款本金 ?????????$lxTotal = 0; //总利息 ?????????for ($i = 0; $i < $dkm; $i++) { ?????????????$lx ?????= $dkTotal * $dknl / 12; //每月还款利息 ?????????????echo "第" . ($i + 1) . "期", " 本金:", $em, " 利息:" . $lx, " 总额:" . ($em + $lx), "<br />"; ?????????????$dkTotal -= $em; ?????????????$lxTotal = $lxTotal + $lx; ?????????} ?????????echo "总利息:" . $lxTotal; ?????} ?????????????????exit;

define(function(require, exports, module) { ???require(‘jquery‘); ???alertM = require(‘alert‘); ???require(‘househighcharts‘); ???????????????//15年3月1日利率 ???/*var lilv_array = new Array; ???lilv_array[31] = new Array; ???lilv_array[31][1] = new Array; ???lilv_array[31][2] = new Array; ???lilv_array[31][1][5] = 0.0575;//商贷 1～5年 5.75% ???lilv_array[31][1][10] = 0.0590;//商贷 5-30年 5.9% ???lilv_array[31][2][5] = 0.0350;//公积金 1～5年 3.5% ???lilv_array[31][2][10] = 0.0400;//公积金 5-30年 4.0%*/ ???var lilv_array = new Array; ???lilv_array[31] = new Array; ???lilv_array[31][1] = new Array; ???lilv_array[31][2] = new Array; ???lilv_array[31][1][5] = 0.069;//商贷 1～5年 5.75% ???lilv_array[31][1][10] = 0.0705;//商贷 5-30年 5.9% ???lilv_array[31][2][5] = 0.0350;//公积金 1～5年 3.5% ???lilv_array[31][2][10] = 0.0400;//公积金 5-30年 4.0% ???????//弹出下拉框 ???$(".xf-select").click(function(){ ???????$(".xf-select").css({zIndex:1}); ???????$(".xf-select ul").hide(); ???????$(this).css({zIndex:999}); ???????if($("ul",this).is(":visible")){ ???????????$("ul",this).hide(); ???????}else{ ???????????$("ul",this).show(); ???????} ???????return false; ???}); ???????????????$("body").click(function(){$(".xf-select ul").hide();}); ???????var junjia,zongjia,anjie,daikuan,shoufu; ???????????????//下拉框选项单击事件 ???$(".xf-select ul li").mouseenter(function(){ ???????$(this).addClass("on"); ???}).mouseleave(function(){ ???????$(this).removeClass("on"); ???}).click(function(){ ???????$(this).parent().prev().find("span").text($(this).text()); ???????$(this).parent().prev().find("input").val($(this).data("code")); ???????$(this).parent().hide(); ???????????????//贷款总额 ???????junjia = $("#zongjia").data("junjia"); ???????zongjia = Math.round($("#housetype").val() * junjia / 10000); ???????anjie = $("#val_loanratio").val(); ???????//填充总价格 ???????$("#label_price").html("<p><strong>"+ zongjia +"</strong>万元<span>（均价<em>"+ junjia +"</em>元/m2）</span></p>"); ???????????????daikuan = Math.round(anjie/100*zongjia); ???????shoufu = zongjia - daikuan; ???????$("#label_totalprice").html("（贷款总额"+daikuan+"万）"); ???????????????if($("#val_loantype").val() == 3){ ???????????$("#content_scale").removeClass("none"); ???????}else{ ???????????$("#content_scale").addClass("none"); ???????} ???????return false; ???}); ???????????????????//本息还款的月还款额(参数: 年利率/贷款总额/贷款总月份) ???function getMonthMoney(lilv,total,month){ ???????var lilv_month = lilv / 12;//月利率 ???????return total * lilv_month * Math.pow(1 + lilv_month, month) / ( Math.pow(1 + lilv_month, month) -1 ); ???} ???????????//验证是否为数字 ???function reg_Num(str){ ???????if (str.length==0){return false;} ???????var Letters = "1234567890."; ???????????for (i=0;i<str.length;i++){ ???????????var CheckChar = str.charAt(i); ???????????if (Letters.indexOf(CheckChar) == -1){return false;} ???????} ???????return true; ???} ???function jisuan(){ ???????junjia = $("#zongjia").data("junjia"); ???????zongjia = Math.round($("#housetype").val() * junjia / 10000); ???????anjie = $("#val_loanratio").val(); ???????//填充总价格 ???????$("#label_price").html("<p><strong>"+ zongjia +"</strong>万元<span>（均价<em>"+ junjia +"</em>元/m2）</span></p>"); ???????????????daikuan = Math.round(anjie/100*zongjia); ???????shoufu = zongjia - daikuan; ???????????????//商业贷款、住房公积金贷款、组合贷款 ???????var loantype = $("#val_loantype").val(); ????????????????????????//贷款年数，5年 | 5年以上 ???????var years = $("#val_loanmonth").val() < 5 ? 5 : 10; ???????????????//还款期数 ???????var month = $("#val_loanmonth").val() * 12; ????????????????????????var yuehuankuan,lixi; ???????if(loantype < 3){ ???????????//商业&公积金贷款 ???????????//月还款 ???????????yuehuankuan = Math.round(getMonthMoney(lilv_array[31][loantype][years],daikuan,month)*10000); //月还款 ???????????????????????//应还利息 ???????????lixi = Math.round(yuehuankuan * month / 10000 - daikuan); ????????}else{ ???????????//组合贷款 ???????????????????????var lilv_sd = lilv_array[31][1][years]; //得到商贷利率 ???????????var lilv_gjj = lilv_array[31][2][years]; //得到公积金利率 ???????????????????????var daikuan_sy = $("#val_loanbussiness").val(); //商业性贷款总额 ???????????var daikuan_gjj = $("#val_loanfund").val(); //公积金贷款总额 ???????????????????????if(daikuan_gjj == ""){ ???????????????$("#gjjtip").removeClass("none"); ???????????????return; ???????????}else if(daikuan_sy == ""){ ???????????????$("#sdtip").removeClass("none"); ???????????????return; ???????????}else if(!reg_Num(daikuan_sy) || !reg_Num(daikuan_gjj)){ ???????????????alertM("贷款金额必须为数字",{cName: "error"}); ???????????????return; ???????????} ???????????????????????//金额错误 ???????????????????????if(parseInt(daikuan_sy)+parseInt(daikuan_gjj) != daikuan){ ???????????????$("#gjjtip span").text("总金额错误").removeClass("none"); ???????????????$("#sdtip span").addClass("none"); ???????????????$("#gjjtip").removeClass("none"); ???????????????return; ???????????}else{ ???????????????$("#gjjtip span").addClass("none"); ???????????} ???????????????????????????????????//月还款 ???????????var month_money = getMonthMoney(lilv_sd,daikuan_sy,month) + getMonthMoney(lilv_gjj,daikuan_gjj,month);//调用函数计算 ???????????yuehuankuan = Math.round(month_money*10000); ???????????????????????//还款总额 ???????????var all_total1 = month_money * month; ???????????//支付利息款 ???????????lixi = Math.round(all_total1 - daikuan); ???????} ???????????????????????????????//填充内容 ???????$(".price").text(yuehuankuan); ???????$(".legend-pay span").html("参考首付："+shoufu+"万（"+(100-anjie)/10+"成）"); ???????$(".legend-price span").html("贷款金额："+daikuan+"万（"+(anjie/10)+"成）"); ???????$(".legend-rate span").html("支付利息："+lixi+"万"); ???????$(".legend-rate span").html("支付利息："+lixi+"万<em><br>（利率公积金"+Math.round(lilv_array[31][2][years]*10000)/100+"%，商业性"+Math.round(lilv_array[31][1][years]*10000)/100+"%）</em>"); ???????????????//初始化圆饼图 ???????initPie(shoufu,daikuan,lixi); ???} ???????????//初始化 ???jisuan(); ???????????????//开始计算按钮 ???$("#btn_startup").click(function(){ ???????jisuan(); ???}); ???????????????????????????//初始化统计图 ???function initPie(shoufu,daikuan,lixi){ ???????var arrPieData = [{name: "参考首付",y: shoufu,events: {mouseOver: function() { ???????????????$(".legend-pay").addClass("on") ???????????},mouseOut: function() { ???????????????$(".legend-pay").removeClass("on") ???????????}}}, {name: "贷款金额",y: daikuan,events: {mouseOver: function() { ???????????????$(".legend-price").addClass("on") ???????????},mouseOut: function() { ???????????????$(".legend-price").removeClass("on") ???????????}}}, {name: "支付利息",y:lixi,events: {mouseOver: function() { ???????????????$(".legend-rate").addClass("on") ???????????},mouseOut: function() { ???????????????$(".legend-rate").removeClass("on") ???????????}}}]; ???????????????var a = new Highcharts.Chart({ ???????????colors: ["#2F69BF", "#A2BF2F", "#BF5A2F"], ???????????chart: { ???????????????type: "pie", ???????????????renderTo: "result-charts", ???????????????backgroundColor: "#f9f9f9" ???????????}, ???????????title: { ???????????????text: " ", ???????????}, ???????????credits: { ???????????????enabled: false ???????????}, ???????????tooltip: { ???????????????enabled: false ???????????}, ???????????plotOptions: { ???????????????pie: { ???????????????????allowPointSelect: true, ???????????????????cursor: "pointer", ???????????????????borderWidth: 1, ???????????????????dataLabels: { ???????????????????????enabled: false ???????????????????}, ???????????????????innerSize: "40%", ???????????????????shadow: false ???????????????} ???????????}, ???????????series: [{ ???????????????type: "pie", ???????????????data: arrPieData ???????????}] ???????}); ???}});