I have one login.php, one main.php, one functions_js.js and one functions_php.php (I use jquery too).
My problem is I need to take two variables from login.php and send it to functions_php.php (ajax, ok that works) but then in functions_php.php I make a query select (with this variables) and it returns me an array which I need on functions_js.js , in this file I have a function to insert images on main.php.
I don't know how to pass the array from functions_php to functions_js.js.
I've read that I can use json but I don't know how to use between 2 different files.
I've tried to use json and pass it to main.php but no works:
functions_php.php:
if (isset($_POST['user'])) {
function startPerson($nick,$pass){
$query = $conexion->query('SELECT archive_id FROM family WHERE family_id=(select distinct family_id from person where user_id = (select user_id from user where user_name="'.$nick.'" and password="'.$pass.'"))');
$query->execute();
while ($res = $query->fetch()) {
$id = $res['archive_id']; //archive_id
}
//coger las personas de las familias de ese archive_id
$query = $conexion->query('SELECT person_id, birth_date FROM person WHERE family_id in (select family_id from family where archive_id='.$id.')');
$query->execute();
while ($res = $query->fetch()) {
$person[] = $res[0]; //archive_id
$date[]=$res[1];
}
return array($person, $date);
}
header('Content-Type: application/json');
$encoded=json_encode(startPerson($_POST['user'],$_POST['pass']));
echo $encoded;
}
main.php:
<?php
$json_data=json_encode($encoded);
?>
<script>
var an_obj= <?php echo $json_data;?> ;
alert(an_obj);//returns null
</script>
function_js.js:
function startPerson (date) {
for(i=0;i=>date.length;i++){
var elem = date[i].split('-');
var mon= elem[1]; //month
var year=elem[0]; //year
var mont= num2mon(mon);
position(year,mont);
elem=" ";
mon=" ";
year=" ";
}
}
function position(year, mon)
{
$('#' + year + ' .' + mon).prepend('<img class="black_point" src="./images/circle.png"/>');
}
Have you tried changing:
var an_obj= <?php echo $json_data;?> ;
to:
var an_obj = "<?php echo $json_data;?>";
Remember, the variable is a string.
Can you also try doing an echo on $encoded?
Related
I'm having a hard time getting the value of a specific variable in php to use in js. This is my code in php:
<?php
require("connection.php");
$sql_cmd = "SELECT * FROM tbstatus";
$stmt = $con->prepare($sql_cmd);
$stmt->execute();
echo "<h2>STATUS OF THE BABY</h2>";
while ($result = $stmt->fetch(PDO::FETCH_ASSOC)) {
echo "<h4>" . $result['status'] . "</h4>";
}
?>
I want to get the value of this ($result['status']) and pass it on the variable pos in js. This is my js code:
setInterval(function() {
$("#position").load('refresh.php');
notif();
}, 1000);
function notif() {
var pos = $('PHP VARIABLE HERE').val();
alert(pos);
}
Thanks for your help.
The easiest way is to output it to javascript directly:
?>
<script type="text/javascript">
window.MY_PHP_VAR = <?php echo json_encode($myPhpVar); ?>;
</script>
...
window.MY_PHP_VAR now contains your php variable
if your javascript code is on same page where the result is comming then you can use this
var pos = `<?php echo $result['status'] ?>`;
var pos = `<?= $result['status'] ?>`;
===============
// refresh.php
===============
<?php
require("connection.php");
$sql_cmd = "SELECT * FROM tbstatus";
$stmt = $con->prepare($sql_cmd);
$stmt->execute();
echo "<h2>STATUS OF THE BABY</h2>";
while ($result = $stmt->fetch(PDO::FETCH_ASSOC)) {
echo "<h4>" . $result['status'] . "</h4>";
echo "<script> alert('". $result['status'] ."'); </script>";
/* If the $result['status'] is 'success' the above line will be converted to:
echo "<script> alert('success'); </script>";
*/
}
?>
so, every time the refresh.php loads, the script is going to get executed.
However, I suggest you to assign a id or class attribute to your h4 where you are echoing your status and access the value using the selectors in the javascript.
you could try giving an id or class to the status.
then in JavaScript you could then get the value of the id or class.
PHP
<?php
require("connection.php");
$sql_cmd = "SELECT * FROM tbstatus";
$stmt = $con->prepare($sql_cmd);
$stmt->execute();
echo "<h2>STATUS OF THE BABY</h2>";
while ($result = $stmt->fetch(PDO::FETCH_ASSOC)) {
echo '<h4> <span class="status">' . $result['status'] . '</span></h4>';
}
?>
JavaScript
var oldStatus = '';
setInterval(function() {
$("#position").load('refresh.php');
notif();
}, 1000);
function notif() {
// note that since we used a class, you will get the value of the first element only.
var pos = $('.status').text(); // use .text() instead of .val()
if (pos.toLowerCase() == 'out' && pos != oldStatus){
oldStatus = pos;
alert(pos);
}
}
Having trouble pulling variables from one PHP to another script.
I have three different files, adminPage.html, reportScript.php, and report.php.
adminPage.html takes variables from the user and uses AJAX post function to post the variables to reportScript.php.
report.php is supposed to pull those posted variables from reportScript.php and use the variables in a SQL function, however, I am receiving an error stating that I have an "undefined index: startDate" and "undefined index: endDate" where I am instantiating the variables in PHP.
adminPage.html:
<center><h2> Choose the dates below that you need an order list from: </h2>
</br>
<form>
<h2>Start:</h2>
<input type="date" id ="reportStartDate" name = "startDate">
</br>
<h2>End:</h2>
<input type="date" id ="reportEndDate" name = "endDate">
</form>
</center>
</br></br>
<button id="runReportButton" onclick = "runReport()"> Run Report </button>
<script>
function runReport()
{
var jStartDate;
var jEndDate;
jStartDate = document.getElementById("reportStartDate").value;
jEndDate = document.getElementById("reportEndDate").value;
/*console.log(jStartDate);
console.log(jEndDate); */
$.ajax
({
type: "POST",
url: "phpScripts/reportScript.php",
data: {startDate: jStartDate, endDate: jEndDate},
success: function(response)
{
console.log("posted");
window.open("report.php", "_self");
}
});
}
</script>
reportScript.php:
<?php
require 'connect.php';
//posts data to db
$startDate = $_POST["startDate"];
$endDate = $_POST["endDate"];
$sql = "SELECT * FROM orderlist WHERE NOT (dateOrdered < startDate OR
dateOrdered > endDate)";
$result = $conn->query($sql);
if($result){
echo "true";
}
else{
echo "false";
}
?>
report.php:
<?php
require 'phpScripts/connect.php';
require 'phpScripts/reportScript.php';
//posts data to db
/*$startDate = $_POST['startDate'];
$endDate = $_POST['endDate'];*/
/*$startDate = '2018-01-01';
$endDate = '2018-08-08'; */
$sql = "SELECT * FROM orderlist WHERE NOT (dateOrdered < '$startDate' OR dateOrdered > '$endDate');";
$result = $conn->query($sql);
//above is reportScript.php, below is pulling list method from order.php
//below works, just needs variables from the reportScript
echo "<ul>";
if($result->num_rows >0)
{
$i = 0;
while($row = $result->fetch_assoc()) // this loads database into list, also
creates array of pricing which someone can pull from later to get total
{
echo "<li style='font-size:15px'>".$row["drinkName"]. ", Date Ordered: "
.$row["dateOrdered"] . ",Cost: " .$row["drinkCost"] . "</li>";
echo "</br>";
$i = $i+1;
}
}else {
echo "<p> you're a dummy and you did this wrong </p>";
}
echo "</ol>";
?>
You forgot the dollar sign ($) in your variables in reportScript.php.
$sql = "SELECT * FROM orderlist WHERE NOT (dateOrdered < $startDate OR
dateOrdered > $endDate)";
This statement is also vulnerable to sql injection.
With some of the advice taken from #Ralf, I combined both reportScript.php and report.php, and used a $_GET statement to put the date variables into the URL upon opening. This way, the query isn't placed twice and the variables are still saved.
I have searched over the Internet, there is a lot of way to store MySQL records into Javascript array though PHP, like this one. However I can't really store the date record in Javascript.
Let say,
My MySQL date record rows in column called holiday_date: 2017-06-25, 2017-06-26, 2017-06-27.
How can I store in Javascript after I converted them into json by
<?php
$sql = "SELECT public_holiday.holiday_date
FROM public_holiday";
$result = mysqli_query($conn, $sql);
$result_array = Array();
while($row = mysqli_fetch_assoc($result))
{
$result_array[] = $row;
}
$json_array = json_encode($result_array);
echo $json_array;
?>
?
I have tried to store them into a javascript date array like
var holidays = [<?php //sample array for example
$loop_one = true;
foreach ($result_array as $date)
{
if ($loop_one)
{
echo "'new Date(\'$date\')'";
$loop_one=false;
}
else
{
echo ", 'new Date(\'$date\')'";
}
}
?>];
but all of these are invalid.
I need your help, much appreciated.
To get a javaScript date object array you need to change your script code only no need to change the PHP code.
You can use JSON.parse and forEach loop.
Try like this
<script>
var holidays = '<?php echo $json_array;?>';
holidays=JSON.parse(holidays);
var holidayArray=[];
holidays.forEach(function (key) {
holidayArray.push(new Date(key));
});
console.log(holidays);
console.log(holidayArray);
</script>
It will produce an out put as
I thing it will help you.
So in your sample, the $result_array variable will be a PHP array like:
$result_array = ['2017-06-25', '2017-06-26', '2017-06-27'];
You do not really need to convert this to JSON before passing it to your Javascript. Instead, you could print those string values directly into your Javascript to instantiate the date object, i.e.
<?php
$sql = "SELECT holiday_date FROM public_holiday";
$result = mysqli_query($conn, $sql);
$result_array = Array();
while($row = mysqli_fetch_assoc($result))
{
$result_array[] = $row['holiday_date']; # Return the actual date value and not an array
}
?>
Javascript Part:
var holidays = [<?php
$firstLoop = true;
foreach ($result_array as $date_result) {
# Here you could format your $date_result variable as a specific datetime format if needed to make it compatible with Javascripts Date class.
if ($firstLoop) {
$firstLoop = false;
echo "new Date('$date_result')";
} else {
echo ", new Date('$date_result')";
}
}
?>];
In this example, I'm constructing a javascript array of new Date($phpDateTime) objects.
Your while loop should be like this and push the date into new array
<?php
$result_array = Array();
while($row = mysqli_fetch_assoc($result))
{
$result_array[] = $row['public_holiday.holiday_dat'];
}
//$result_array contains date like this $result_array = ['2017-06-26', '2017-06-27'];
?>
Javascript example
<script>
var holidays = [<?php $result_array = ['2017-06-26', '2017-06-27']; //sample array for example
$loop_one = true;
foreach ($result_array as $date) {
if ($loop_one) {
echo "'new Date(\'$date\')'";
$loop_one=false;
} else {
echo ", 'new Date(\'$date\')'";
}
}
?>];
console.log(holidays);
</script>
Update 1: Finally your code should be like this
<?php
$sql = "SELECT public_holiday.holiday_date FROM public_holiday";
$result = mysqli_query($conn, $sql);
$result_array = Array();
while($row = mysqli_fetch_assoc($result))
{
$result_array[] = $row['public_holiday.holiday_dat'];
}
?>
<script>
var holidays = [<?php
$loop_one = true;
foreach ($result_array as $date) {
if ($loop_one) {
echo "'new Date(\'$date\')'";
$loop_one=false;
} else {
echo ", 'new Date(\'$date\')'";
}
}
?>];
console.log(holidays);
</script>
I made a simple php file, that saves data from MySQL db into 2 arrays. I am trying to send these two arrays to the js file (which is on seperate from the html file). I am trying to learn AJAX, but it seems i am not doing something correct.
Can you please explain what am i doing wrong?
My php file: get.php
<?php
define('DB_NAME', 'mouse');
define('DB_USER', 'root');
define('DB_PASS', '');
define('DB_HOST', 'localhost');
$link = mysqli_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
if($link === false){
die("ERROR: Could not connect. " . mysqli_connect_error());
}else{
echo 'Successfuly connected to database :) <br/>';
}
$sql = "SELECT x, y FROM mousetest";
$result = mysqli_query($link, $sql);
$x_array = [];
$y_array = [];
if (mysqli_num_rows($result) > 0) {
while($row = mysqli_fetch_assoc($result)) {
echo "x: " . $row["x"]. " - y: " . $row["y"]. "<br>";
array_push($x_array, $row["x"]);
array_push($y_array, $row["y"]);
}
} else {
echo "0 results";
}
echo json_encode($x_array);
echo "<br>";
echo json_encode($y_array);
mysqli_close($link);
$cd_answer = json_encode($x_array);
echo ($cd_answer);
?>
And this is my JS file:
$(document).ready(function(){
$.ajax({
type: "GET",
url: "get.php",
dataType: "json",
data : {anything : 1},
success:function(data){
var x = jQuery.parseJSON(data); // parse the answer
x = eval(x);
console.log(x.length);
}
});
});
I really hope you understand, what i am trying to do. Where is the problem? I really thought this should work, as i went through it quite a few times to say the least...
You can't use echo json_encode(...) twice. The client expects a single JSON object, not a series of them.
You should make each array an element of a containing array, which you then return as JSON.
$result = array('x' => $x_array, 'y' => $y_array);
echo json_encode($result);
Then in the jQuery code you would use:
var x = data.x;
var y = data.y;
Also, when you use dataType: 'json', jQuery automatically parses the JSON when it sets data. You shouldn't call jQuery.parseJSON() or eval().
I am having trouble executing SQL via AJAX when a dropdown box is changed and would like some help if possible.
Background Info
I have been tasked with creating a daily calendar that shows all the classes ran at a gym, which at its maximum is 5 x classes of 6 (30) people per hour for 14 hours.I'm no pro and I may have created a convoluted way around this issue, please let me know if i have.
I have managed to create the view which consists of 14 columns of 30 drop down boxes (5 x classes of 6 per hour for 14 hours). Each drop down box polls the db and if an entry resides it will populate the box with the name of the bookinguser. If no booking is found it will create a drop downbox that polls the members table and presents all the members of the gym, which when changed, will hopefully book that person in. - herein lies my current issue!
Each drop down box's name corresponds to the time, group and headcount which I intend on passing to javascript function and eventually to the SQL statement. Each option's value corresponds with the memberid which will also be passed giving all the information needed to construct the SQL.
The code I have so far
HTML - snipped generated from php loops
<div id="results">
<div id="07" class="column">07:00<br/>
<div id="group1">
<select name="07:00-1-0" onchange="getda(this.value,this)">
<option value="none">---------------</option>
<option value="2">John Doe</option>
<option value="1">Joe Bloggs</option>
</select>
<select name="07:00-1-1" onchange="getda(this.value,this)">
<option value="none">---------------</option>
<option value="2">John Doe</option>
<option value="1">Joe Bloggs</option>
</select>
PHP
<?php
$mysqli = new mysqli("localhost", "root", "", "gym");
/* check connection */
if ($mysqli->connect_errno) {
printf("Connect failed: %s\n", $mysqli->connect_error);
exit();
}
function hyphenate($str) {
return implode("-", str_split($str, 2));
}
function getmembers($time,$group,$iteration)
{
$date=$_GET["date"];
$date=hyphenate($date);
$date = explode('-', $date);
$new_date = $date[2].'-'.$date[1].'-'.$date[0];
$mysqli = new mysqli("localhost", "root", "", "gym");
if ($iteration == 0){
$result = $mysqli->query("select members.memberid, members.firstname, members.lastname from bookings inner join members on bookings.memberid = members.memberid where bookings.date = '$new_date' and time = '$time' and bookings.groupnumber = '$group' order by bookings.bookingid ASC limit 1");
}
else {$result = $mysqli->query("select members.memberid, members.firstname, members.lastname from bookings inner join members on bookings.memberid = members.memberid where bookings.date = '$new_date' and time = '$time' and bookings.groupnumber = '$group' order by bookings.bookingid ASC limit 1,$iteration");
}
$rowcount=mysqli_num_rows($result);
if ($rowcount==$iteration && $iteration == 0)
{
$result = $mysqli->query("select firstname, lastname,memberid from members order by firstname ASC");
echo '<select name="'.$time.'-'.$group.'-'.$iteration.'" onchange="getda(this.value,this)"><option value="---------------">---------------</option>';
while ($row = $result->fetch_assoc()) {
unset($firstname, $lastname);
$firstname = $row['firstname'];
$lastname = $row['lastname'];
$memberid = $row['memberid'];
echo '<option value="'.$memberid.'">'.$firstname . ' ' . $lastname .'</option>';
}
echo "</select>";
}
else if ($rowcount>=$iteration){
echo '<select name="'.$time.'-'.$group.'-'.$iteration.'" onchange="getda(this.value,this)">';
while ($row = $result->fetch_assoc()) {
unset($firstname, $lastname);
$firstname = $row['firstname'];
$lastname = $row['lastname'];
$memberid = $row['memberid'];
echo '<option value="'.$memberid.'">'.$firstname . ' ' . $lastname .'</option><option value="cancel">Cancel</option>';
}
echo "</select>";
}
else{
$result = $mysqli->query("select firstname, lastname, memberid from members order by firstname ASC");
echo '<select name="'.$time.'-'.$group.'-'.$iteration.'" onchange="getda(this.value,this)"><option value="---------------">---------------</option>';
while ($row = $result->fetch_assoc()) {
unset($firstname, $lastname);
$firstname = $row['firstname'];
$lastname = $row['lastname'];
$memberid = $row['memberid'];
echo '<option value="'.$memberid.'">'.$firstname . ' ' . $lastname .'</option>';
}
echo "</select>";
}
}
?>
JS
function getda(id,booking){
$.ajax({
type: 'post',
url: 'samefile.php',
data: {
get_option:id
},
success: function (response) {
document.getElementById("result").innerHTML=response;
}
});
}
samefile.php
<?php
if(isset($_POST['get_option']))
{
inlude 'config/config.php';
$name=$_POST["get_option"];
echo "<SCRIPT>
alert('$name');
</SCRIPT>";
$sql = "insert into bookings (memberid,date,time,groupnumber) values (1,'2016-04-14','09:00',3)";
$query = mysqli_query($sql);
$mysqli->close();
?>
The console in chrome looks fine (below) but no records are inserted and the php alert doesn't show. I havent passed any of the variable to the SQL as I was first testing that a query executed properly
jquery.min.js:4 XHR finished loading: POST "http://localhost/gym/samefile.php".send # jquery.min.js:4n.extend.ajax # jquery.min.js:4getda # cal.php?date=140416:42onchange # cal.php?date=140416:36ListPicker._handleMouseUp # about:blank:535
Might want to look into jQuery's .change(). I think that it would work with something like below for your code. You could also have it call your function that has ajax in it as well
$( ".class" ).change(function() { //can use #id here too
$.ajax({
type: 'post',
url: 'samefile.php',
data: {
get_option:this.value
},
success: function (response) {
document.getElementById("result").innerHTML=response;
}
});
});
I see three problems in samefile.php - include spelled incorrectly, an extra semicolon, and a missing closing bracket:
<?php
if(isset($_POST['get_option']))
{
include 'config/config.php';
$name = $_POST["get_option"];
//this should be converted to parameterized queries
$sql = "insert into bookings (memberid,date,time,groupnumber) values (1,'2016-04-14','09:00',3)";
$query = mysqli_query($sql);
if(is_object($query)){
echo 'successfully inserted';
} else {
echo 'insert failed';
}
$mysqli->close();
} else {
echo 'no data to process!';
}
?>