I am trying to set a cookie to my website, all steps are going well except when I check if the cookie isset, when I add this condition || isset($_COOKIE['username']) it undefines the index username in the next line, is there any mistake in the if statement?
if (isset($_SESSION['username']) || isset($_COOKIE['username'])) {
$userLoggedIn = $_SESSION['username'];
$user_details_query = mysqli_query($con, "SELECT * FROM users WHERE username='$userLoggedIn'");
$user = mysqli_fetch_array($user_details_query);
}
else {
$userLoggedIn = NULL;
}
Related
I seem to be going quite wrong somewhere.
I'm writing a script that will automatically send out a reminder email if a Google sheet cell turns to "Yes".
The problem is my script seems to read it as:
if the second row has a "yes" it will return true for all rows and send out an email to everyone, regardless of the other rows saying "yes" or "no".
if any other row has a yes, then it seems to be completely ignored.
Defining the range to check:
//looping through all of the rows
for (var i = 0; i < data.length; ++i) {
var row = data[i];
// Creating where the if statement is check
var ss = SpreadsheetApp.getActiveSheet();
var thisQuarter = ss.getRange("H2:H50").getValue();
The IF statement to check against:
// checking for this quarter
if (
thisQuarter == "Yes") {
var subject =
'Your BCP is due to expire this quarter: ';
MailApp.sendEmail(emailAddress, subject, message,);
Logger.log('this quarter');
}
}
}
If anyone could give me a couple pointers as to where I'm going wrong, that would be greatly appreciated.
Thank you,
Ideally post a view only copy of the sheet. I believe the problem is this section of code:
// checking for this quarter
if (
thisQuarter == "Yes") {
var subject =
'Your BCP is due to expire this quarter: ';
MailApp.sendEmail(emailAddress, subject, message,);
Logger.log('this quarter');
}
thisQuarter is assigned here:
var thisQuarter = ss.getRange("H2:H50").getValue();
change that line to this:
var thisQuarter = ss.getRange("H2:H50").getValues();
so thisQuarter is an array of values from the range specified
change the if statement to this and see if it helps:
for (i = 0; i < thisQuarter.length; i++) {
if (thisQuarter[i][0] == "Yes" {
// send email
}
}
I am trying to validate a user typed email in Xamarin.Forms with Regex. For that I require that the pattern includes:
var emailPattern = #"^(?("")("".+?(?<!\\)""#)|(([0-9a-z]((\.(?!\.))|[-!#\$%&'\*\+/=\?\^`\{\}\|~\w])*)(?<=[0-9a-z])#))" +
#"(?(\[)(\[(\d{1,3}\.){3}\d{1,3}\])|(([0-9a-z][-\w]*[0-9a-z]*\.)+[a-z0-9][\-a-z0-9]{0,22}[a-z0-9]))$";
Then I match the typed email with the pattern:
if (!Regex.IsMatch(Email, emailPattern) || Email == null)
{
EmailIsWrong = true;
}
else{
EmailIsWrong = false;
}
However, an error occurs, which is System.ArgumentNullException: Value cannot be null.
Parameter name: input on my if statement. I tried fixing it by having Email == null. This error occurs whenever I let the entry be empty.
For your problem, change the order of operands may help.
Like:
if (Email == null || !Regex.IsMatch(Email, emailPattern))
{
EmailIsWrong = true;
}
else{
EmailIsWrong = false;
}
If the first operand is satisfied, the second operand will be skipped
I want to make a auto login when users used APP after first time.I tried to keep it in alloy.js and Ti.App.Properties.getString('login_token'),but they didn't work.
in my coffee:
result = JSON.parse this.responseText
console.info result.token #"dsfdsfds2142fds3r32rf32e3dfefwedf"
Ti.App.Properties.setString "token",result.token
console.info Ti.App.Properties.getString "token" # it's blank
I couldn't find a built in way to do this so i just created a getter and setter method and put it in alloy.js. Feels very hacky and dirty but it does work.
//retrieves the value of the token
// also checks if the token is valid and sets logged_in accordingly
function getToken(){
var f = Ti.Filesystem.getFile(Ti.Filesystem.applicationDataDirectory,'api.txt');
var content = f.read();
//if we can read this return it, otherwise return a blank value
if (content){
return content.text;
}
else {
return '';
}
}
//persists and sets the value of token to the new value
function setToken(key){
var f = Ti.Filesystem.getFile(Ti.Filesystem.applicationDataDirectory,'api.txt');
f.deleteFile();
var f = Ti.Filesystem.getFile(Ti.Filesystem.applicationDataDirectory,'api.txt');
f.write(key);
token = key;
}
I have implemented intro.js to my website. But I wanted to start the tour only on first visit. may be by using cookies.. website is made with html no php..
JavaScript cookies are a solution although I should point out that it will only work for as long as the user keeps the cookie.
//set the cookie when they first hit the site
function setCookie(c_name,value,exdays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate() + exdays);
var c_value=escape(value) + ((exdays==null) ? "" : "; expires="+exdate.toUTCString());
document.cookie=c_name + "=" + c_value;
}
//check for the cookie when user first arrives, if cookie doesn't exist call the intro.
function getCookie(c_name)
{
var c_value = document.cookie;
var c_start = c_value.indexOf(" " + c_name + "=");
if (c_start == -1)
{
c_start = c_value.indexOf(c_name + "=");
}
if (c_start == -1)
{
c_value = null;
}
else
{
c_start = c_value.indexOf("=", c_start) + 1;
var c_end = c_value.indexOf(";", c_start);
if (c_end == -1)
{
c_end = c_value.length;
}
c_value = unescape(c_value.substring(c_start,c_end));
}
return c_value;
}
code is from http://www.w3schools.com/js/js_cookies.asp
obviously there's some blanks you'll have to fill in there, but it's a good starting point for working with cookies in javascript.
EDIT:
So you want to make a new function, put it in the head, inside script tags (if you have them already, just copy the function into there (you'll want to put the other two functions I provided within the script tag also)). This function will check to see if you have a cookie. If you do, just return. If you don't, create the cookie and run the intro,
<head>
<script type="text/javascript">
function checkCookieIntro(){
var cookie=getCookie("mySite");
if (cookie==null || cookie=="") {
setCookie("mySite", "1",90);
runIntro(); //change this to whatever function you need to call to run the intro
}
}
</script>
</head>
now change your body to be:
<body onload="checkCookieIntro()">
so when the body loads it will check to see if a cookie exists, if it doesn't, create a cookie with a value of one that will last for 90 days (unless the user deletes it) and then run the intro. If the cookie does exist with a value then it does nothing.
I am not able to properly launch my site at http://www.enbloc.sg
This is because my programmer is not able to figure out a problem. Any help would be much appreciated.
Visitors vote by clicking on one colour on the traffic light. They are supposed to only have one vote.
The site first checks for cookies and then ip address of voter. If the 2 are identical to a previous visitor, then voting is not allowed. If only one of the 2 are repeated, then voting is permitted.
The idea of having a double restriction is to allow different voters behind a fixed IP to vote. E.g. the employees of a company would not be able to vote since they are likely to be accessing the site via a fixed IP address.
However, currently, visitors are able to click on ALL 3 colours to register 3 votes on their first visit to the site. My coder is not able to resolve this issue and has abandoned me.
I would be most grateful if someone can help. I believe the relevant codes are appended below.
Apologies if my posting is wrongly formatted.
Thanks very much,
Lin En
Extracted from http://www.enbloc.sg/js/functions.js
//update dashboard when vote by user
function vote_update(ip_address, issue_num, vote_status){
var vote_cookie = document.getElementById('vote_cookie').value;
if(vote_cookie != '')
{
if(document.getElementById('thanks').style.display == "none")
{
$("#multi_error").fadeIn("slow");
}
else
{
document.getElementById("thanks").style.display = "none";
$("#multi_error").fadeIn("slow");
}
}
else
{
if(ip_address != ' ' && issue_num != ' ')
{
http.open("POST", "update_vote.php"); // true
http.onreadystatechange = update_vote;
http.setRequestHeader("Content-Type", "application/x-www-form- urlencoded;charset=UTF-8");
http.send("ip="+ ip_address +"&issue_num="+ issue_num + "&vote_status=" + vote_status);
}
else
{
alert("Occur Error for IP or ISSUE!");
}
}
}
// ajax response function
function update_vote(){
if (http.readyState == 4)
{
if (http.status == 200)
{
var xmlDoc = http.responseXML;
var listElements = xmlDoc.getElementsByTagName("list");
var result = listElements[0].getElementsByTagName("total") [0].childNodes[0].nodeValue;
if (result == 1)
{
var issue_num = listElements[0].getElementsByTagName("issue")[0].childNodes[0].nodeValue;
var vote = listElements[0].getElementsByTagName("vote") [0].childNodes[0].nodeValue;
$("#thanks").fadeIn("slow");
load(issue_num, vote);
}
else if (result == 'Multi')
{
if(document.getElementById('thanks').style.display == "none")
{
$("#multi_error").fadeIn("slow");
}
else
{
document.getElementById("thanks").style.display = "none";
$("#multi_error").fadeIn("slow");
}
}
else
{
alert("error");
}
}
}
}
These changes will help:
var already_voted = false;
function vote_update(ip_address, issue_num, vote_status)
{
if(alread_voted) return;
already_voted = true;
// rest of the code
}
This will make sure that only one vote can be cast during a single visit. The cookies take care of the rest and are already working fine.