我使用的JQuery / PHP脚本在页面上显示12个时钟。 Javascript文件调用PHP文件来确定时区偏移量，但要显示12个时钟，12个PHP请求会崩溃我的页面。
JS FILE
/*these are the div id names you added to your html*/
var clockAllDivs = [
"clock0",
"clockNYC",
"clockTOR",
"clockVAN",
"clockLAX",
"clockFRNK",
"clockSAO",
"clockTOK",
"clockBEI",
"clockHON",
"clockLONDON",
"clockPARIS",
"clockSYDNEY"
];
var tz = jstz.determine(); // Determines the time zone of the browser client
tz.name();
/*get timezone from this list: http://php.net/manual/en/timezones.php*/
var timeZones = [
tz.name(),
"America/New_York",
"America/Toronto",
"America/Vancouver",
"America/Vancouver",
"Europe/Zurich",
"America/Sao_Paulo",
"Asia/Tokyo",
"Asia/Hong_Kong",
"Asia/Hong_Kong",
"Europe/London",
"Europe/Paris",
"Australia/Sydney"
];
/*titles you want to show for each clock*/
var clockTitles = [
tz.name(),
"Los Angeles",
"Melbourne",
"Kathmandu",
"Tokyo",
"Johannesburg"
];
var useTitle1 = false;
var useTitle2 = false;
var clockWidthHeight = 118;//width and height of the clock
var distanceBetweenClockTitle = 5;
var secondHandSpeed = 100;//in ms, the lower the number, the faster
var smoothRotation = false;//true or false
var useSecondHand = false;//set to false if you don't want to see the 2nd hand
/*location of the images*/
var clockFaceImg = "img/clockBg.png";
var hourHandImg = "images/hourHand.png";
var minuteHandImg = "images/minuteHand.png";
var secondHandImg = "images/secondHand.png";
var amImg = "images/am.png";
var pmImg = "images/pm.png";
/*location of the high res images for retina display*/
var clockFaceHighResImg = "img/clockBgHighRes.png";
var hourHandHighResImg = "images/hourHandHighRes.png";
var minuteHandHighResImg = "images/minuteHandHighRes.png";
var secondHandHighResImg = "images/secondHandHighRes.png";
var amHighResImg = "images/amHighRes.png";
var pmHighResImg = "images/pmHighRes.png";
/*text for days and months*/
var dayText = [
"Sun",
"Mon",
"Tue",
"Wed",
"Thu",
"Fri",
"Sat"
];
var monthText = [
"Jan",
"Feb",
"Mar",
"Apr",
"May",
"Jun",
"Jul",
"Aug",
"Sep",
"Oct",
"Nov",
"Dec"
];
///////////////////////////////
//Do not edit below this line//
///////////////////////////////
var clockDivs = [];
var offsets = [];
var minuteHand;
var hourHand;
var secondHands = [];
var minuteHands = [];
var hourHands = [];
var ams = [];
var pms = [];
var retina = false;
var imgsLoaded = 0;
var imagesToLoad = 6;
var callInterval = 1000;
var thisOffset;
var formerHr = [];
var isStart = true;
var tzChecked = 0;
//once the page is ready . . .
$( document ).ready(function() {
var dNow = new Date();
thisOffset = dNow.getTimezoneOffset();//figure out user's timezone
//get the timezone info for each of your clocks
for(var i = 0;i<clockAllDivs.length;i++){
getTZOutput(i);
}
});
//build each clock
function AnalogClock(){
retina = window.devicePixelRatio > 1;//check if retina
//if it's high res, use the high res images
if(retina){
clockFaceImg = clockFaceHighResImg;
hourHandImg = hourHandHighResImg;
minuteHandImg = minuteHandHighResImg;
secondHandImg = secondHandHighResImg;
amImg = amHighResImg;
pmImg = pmHighResImg;
}
//determine if you want to use the second hand
if(useSecondHand == false){
imagesToLoad = imagesToLoad - 1;
}
//change the call interval for smooth rotation
if(smoothRotation == true && useSecondHand){
callInterval = 50;
}
//create each clock visually
for(var i = 0;i<clockAllDivs.length;i++){
var clockAllDiv = $("#" + clockAllDivs[i]);
//add bg
clockAllDiv.append("<div id='analog-clock" + i + "' class='myClock'></div>")
//add title
if(useTitle1 || useTitle2){
var clockTitlePos = distanceBetweenClockTitle + clockWidthHeight;
if(useTitle1)clockAllDiv.append("<div><p class='clockTitle'>" + clockTitles[i] + "</p></div>");
if(useTitle2){
clockAllDiv.append("<div><p id='title2_" + i + "' class='clockTitle2'></p></div>");
}
$('.clockTitle').css({"margin-top":clockTitlePos + 'px'});
if(useTitle2 && !useTitle1)$('.clockTitle2').css({"margin-top":clockTitlePos + 'px'});
}
clockDivs[i] = "analog-clock" + i;
var clockDiv = $("#" + clockDivs[i]);
//set clock holder css
clockDiv.css({"height":clockWidthHeight + "px", "width":clockWidthHeight + "px", "position":"relative"});
//add more graphical elements
clockDiv.append("<img id='bg' src=" + clockFaceImg + " height="+clockWidthHeight+" width="+clockWidthHeight+" />");
//add the div for am/pm
clockDiv.append("<img id='am' class='ampm' src='" + amImg + "' width='28' height='18' />");
clockDiv.append("<img id='pm' class='ampm' src='" + pmImg + "' width='28' height='18' />");
//add hands
$("<img id='hourHand' src=" + hourHandImg + " />").appendTo("#" + clockDivs[i]);
clockDiv.append("<img id='minuteHand' src=" + minuteHandImg + " />");
if(useSecondHand)clockDiv.append("<img id='secondHand' src=" + secondHandImg + " />");
//define elements
if(useSecondHand)secondHands[i] = $("#" + clockDivs[i] + " #secondHand");
minuteHands[i] = $("#" + clockDivs[i] + " #minuteHand");
hourHands[i] = $("#" + clockDivs[i] + " #hourHand");
ams[i] = $("#" + clockDivs[i] + " #am");
pms[i] = $("#" + clockDivs[i] + " #pm");
if(i == 0){
//check to see if the images are loaded
$('#bg').load(function() { checkIfImagesLoaded(); });
if(useSecondHand)secondHands[i].load(function() { checkIfImagesLoaded(); });
minuteHands[i].load(function() { checkIfImagesLoaded(); });
hourHands[i].load(function() { checkIfImagesLoaded(); });
ams[i].load(function() { checkIfImagesLoaded(); });
pms[i].load(function() { checkIfImagesLoaded(); });
}
//set clock css
var handIds = $("#" + clockDivs[i] + " #bg, #hourHand, #minuteHand, #secondHand");
handIds.css({"position":"absolute"});
}
};
function checkIfImagesLoaded(){
//this gets called each time an image is loaded
imgsLoaded++;
if(imgsLoaded == imagesToLoad){//once all the images are loaded
for(var i = 0;i<clockAllDivs.length;i++){
//adjust widths and heights if 2x resolution
if(retina){
if(useSecondHand)secondHands[i].css( { "height":secondHands[i].height()/2, "width":secondHands[i].width()/2 } );
minuteHands[i].css( { "height":minuteHands[i].height()/2, "width":minuteHands[i].width()/2 } );
hourHands[i].css( { "height":hourHands[i].height()/2, "width":hourHands[i].width()/2 } );
}
//set the position of the hands
if(useSecondHand)secondHands[i].css( { "left": (clockWidthHeight - secondHands[i].width())/2 + "px", "top": (clockWidthHeight - secondHands[i].height())/2 + "px" });//set x and y pos
minuteHands[i].css( { "left": (clockWidthHeight - minuteHands[i].width())/2 + "px", "top": (clockWidthHeight - minuteHands[i].height())/2 + "px" });//set x and y pos
hourHands[i].css( { "left": (clockWidthHeight - hourHands[i].width())/2 + "px", "top": (clockWidthHeight - hourHands[i].height())/2 + "px" });//set x and y pos
//if(useSecondHand)setSecondStart();
//fade the clocks in
$("#" + clockAllDivs[i]).animate({ opacity:1 }, "slow");
}
//call rotatehands function
setInterval(function(){
rotateHands();
}, callInterval);//1000 = 1 second
if(!smoothRotation)rotateHands();//make sure they start in the right position
}
}
function rotateHands(){
for(var i = 0;i<clockAllDivs.length;i++){
//get current time/date from local computer
var now = new Date();
now.setMinutes(now.getMinutes() + offsets[i] + thisOffset);
//set the second hand
var secondAngle = 6 * now.getSeconds();//turn the time into angle
if(smoothRotation)var smoothSecondAngle = now.getMilliseconds()/1000 * 6 + secondAngle;
var currentHr = now.getHours();
if(formerHr[i] && currentHr != formerHr[i]){
getTZOutput(i);
setDayMonthTxt(now, i);
}
formerHr[i] = currentHr;
if(useSecondHand){
if(smoothRotation){
secondHands[i].rotate(smoothSecondAngle, 'abs');//set the hand angle
}else{
if(secondAngle == 0){
secondHands[i].rotate(-6, 'abs');//set the hand angle
}
secondHands[i].rotate({ animateTo:secondAngle, duration:secondHandSpeed}, 'abs');
}
}
//set the minute hand
var minuteAngle = 6 * now.getMinutes() + secondAngle/60;//turn the time into angle
minuteHands[i].rotate(minuteAngle, 'abs');//set the hand angle
//set the hour hand
var hourAngle = 360/12 * currentHr;//turn the time into angle
var hourAngleWOffset = hourAngle + minuteAngle/12;
hourHands[i].rotate(hourAngleWOffset%360, 'abs');//set the hand angle
}
isStart = false;
}
//get timezone info from the
function getTZOutput(thisNum) {
$.ajax({
type: "POST",
url:'timezone-clock-scripts/getTimezoneTime.php',
data: {thisTz:timeZones[thisNum]},
dataType: "json",
success: function (response) {
offsets[thisNum] = response/60;
allTZChecked();
},
error: function (){
console.log("error");
}
});
}
//make sure the php script has called first
function allTZChecked(){
tzChecked++;
if(tzChecked == clockAllDivs.length){
AnalogClock();
for(var i = 0;i<clockAllDivs.length;i++){
var now = new Date();
now.setMinutes(now.getMinutes() + offsets[i] + thisOffset);
setDayMonthTxt(now, i);
}
}
}
function setDayMonthTxt(now, thisNum){
var thisDay = dayText[now.getDay()];
var thisMonth = monthText[now.getMonth()];
var thisDate = now.getDate();
var thisYear = now.getFullYear();
//this is what the actual strong of text looks like, but you can modify it as you please.
if(useTitle2)$("#title2_" + thisNum ).html(thisDay + " " + thisMonth + " " + thisDate + ", " + thisYear);
//determine am/pm
if(now.getHours() < 12){
ams[thisNum].fadeIn();
pms[thisNum].fadeOut();
}else{
ams[thisNum].fadeOut();
pms[thisNum].fadeIn();
}
}
PHP文件
<?php
$tzTxt = $_REQUEST['thisTz'];
$date = new DateTime();
$tz = new DateTimeZone($tzTxt);
$date->setTimezone($tz);
echo $date->format(Z);
//echo $date;
?>
有时页面会重新加载，有时我会得到一个＆＃34;连接被重置＆＃34;错误。
当我禁用此脚本时，一切正常。
有没有办法改变我的PHP设置以允许此脚本工作，还是应该探索其他选项？
答案 0 :(得分：1)
如果问题是您的服务器无法处理并发请求，则有几个选项：