I am using this code which calls the period_id :
$cart = $this->GetUserCart();
$dataset = array();
while ($data = $cart->fetch_array()) {
$dataset[] = $data['period_id'];
}
so I need to implode the result so they can be separated by comma
$p = implode(",",$dataset);
So in the usercart function will call for example, 3 distinct period_id
so I need to finish like this :
$p='2,5,3';
Your code is correct. Maybe you just have to echo it.
$dataset = array();
while ($data = $cart->fetch_array()) {
$dataset[] = $data['period_id'];
}
$p = implode(',', $dataset);
echo $p; //you just need to echo it
I think if
$p = implode(",",$dataset);
if $dataset = array("1", "5", "3");
when you echo $p ; //output will be 1,5,3
put if you add this :
$p = "'".implode(",",$dataset)."'";
echo $p ; //output will be '1,5,3'
and that is what you need if i understand you so
$p = '1,5,3';
Related
I have this php code that's supposed to check how many times a single item is in an array and put the amount in the value of that key.
im asking, why does the $duplicates[$item] += 1; create a new array instead of appending it to the existing array
here is the picture of the output I get.
this is my code:
$itemQuery = $con->prepare("SELECT cart_value FROM active_carts WHERE username=:prodName");
$itemQuery->bindParam(":prodName" , $uname , PDO::PARAM_STR);
$itemQuery->execute();
$itemCount = $itemQuery->fetchAll();
$arrax = $itemCount[0]["cart_value"];
$itemArrX = explode(",", $arrax);
$inQuestion = array();
$duplicates = array();
foreach ($itemArrX as $item) {
if (in_array($item , $inQuestion)) {
$counter = 0;
if (!array_key_exists($item , $duplicates)) {
$duplicates[$item] = $counter;
// doesnt even execute
} else {
echo $duplicates[$item]; // echoes a new array every time
$duplicates[$item] += 1;
}
} else {
array_push($inQuestion, $item);
}
}
It is rather simple, you never created that item in the array.
$data[$key] = $value; //examine that.
try this $duplicates[$item] = $item;
then $duplicates[$item] += 1;
If you're just looking for a count of duplicate values, I like the suggestion about array_count_values() in the comments. That can be run through array_filter() to remove the non-duplicate values.
$itemQuery = $con->prepare("SELECT cart_value FROM active_carts WHERE username=:prodName");
$itemQuery->execute([":prodName"=>$uname]);
$itemArrX = explode(",", $itemQuery->fetchColumn(0));
$itemArrX = ["foo","bar","baz","bar","boo","baz"];
$duplicates = array_filter(array_count_values($itemArrX), function($v){return $v>1;});
$inQuestion = array_unique($itemArrX);
print_r($duplicates);
print_r($inQuestion);
Or here's a condensed version of your code which should work just fine.
$itemQuery = $con->prepare("SELECT cart_value FROM active_carts WHERE username=:prodName");
$itemQuery->execute([":prodName"=>$uname]);
$itemArrX = explode(",", $itemQuery->fetchColumn(0));
$itemArrX = ["foo","bar","baz","bar","boo","baz"];
$duplicates = [];
$inQuestion = [];
foreach ($itemArrX as $item) {
if (in_array($item, $inQuestion)) {
echo $duplicates[$item];
$duplicates[$item]++;
} else {
$duplicates[$item] = 1;
$inQuestion[] = $item;
}
}
print_r($duplicates);
print_r($inQuestion);
I'm trying to get the following output from mysql for Google Line Chart API:
[["product","diameter","width"],["Product 1","2","4"],["Product 2","4","8"]]
I have set up several input checkboxes to send field names (e.g width,diameter) to the database via $_POST["info"] and retrieve the values from those fields. Here's the part that generates the data from mysql:
$result = $users->fetchAll();
$comma = "";
$data="";
$data[0] = array_merge(array(product),$info);
$i = 1;
foreach ($result as $r)
{
foreach($_POST["info"] as $p)
{
$d .= $comma.$r[$p]; // trying to get "$r["width"],$r["diameter"]"
}
$comma = ",";
$data[$i] = array($r["name"], $d);
$i++;
}
echo json_encode($data);
My desired output should be like this:
[["product","diameter","width"],["Product 1","2","4"],["Product 2","4","8"]]
But that code is generating duplicated results like this
[["product","diameter","width"],["Product 1","24"],["Product 2","24,4,8"]]
I guess I shouldn't be using the nested foreach to loop over $_POST. Can anyone tell me how to fix that?
Full PHP Code:
$info = $_POST["info"]; // It contains an array with values like width,diameter,thickness etc...
$comma = "";
foreach($info as $in)
{
$field .= "".$comma."b.".$in."";
$comma = ",";
}
$sql = "
SELECT {$field},a.user_id,a.name
FROM `product_detail` a INNER JOIN
`attr` b ON a.model = b.model
WHERE a.user_id = ?
GROUP BY a.model
";
$users = $dbh->prepare($sql);
$users->bindValue(1, $_SESSION["user_id"]);
$users->execute();
$result = $users->fetchAll();
$comma = "";
$data="";
$i = 1;
$data[0] = array_merge(array(product),$info);
foreach ($result as $r)
{
foreach($_POST["info"] as $p)
{
$d .= $comma.$r[$p];
}
$comma = ",";
$data[$i] = array($r["name"], $d);
$i++;
}
echo json_encode($data);
$_POST["info"] Content:
Array
(
[0] => diameter
[1] => width
)
try it like this:
$result = $users->fetchAll();
$data="";
$data[0] = array_merge(array(product),$info);
$i = 1;
foreach ($result as $r)
{
$d[]=$r["name"];
foreach($_POST["info"] as $p)
{
$d[]= $r[$p];
}
$data[$i] = $d;
$d=array(); //set $d to empty not to get duplicate results
$i++;
}
echo json_encode($data);
The end result you are looking for, is valid JSON. You should not try to manually generate that.
Instead you should make an array of arrays in php and use json_encode($array) to get the result you are looking for.
Also note that by injecting your POST variables directly in your query, you are vulnerable to sql injection. When accepting fields, you should check them against a white-list of allowed values.
Try the below solution:
$result = $users->fetchAll();
$data="";
$data[0] = array_merge(array(product),$info);
$i = 1;
foreach ($result as $r)
{
$d = array();
foreach($_POST["info"] as $p)
{
$d[] = $r[$p]; // trying to get "$r["width"],$r["diameter"]"
}
$data[$i] = array($r["name"]) +$d;
$i++;
}
echo json_encode($data);
If i echo inside the while loop i get 4,2 values and if i echo outside the while loop then i only get 2. I want to get the data from $row into the values array. is something missing in this code?
$query = oci_parse($con, "SELECT count(*) FROM Counter GROUP BY Blog_name");
oci_execute($query);
while($row = oci_fetch_array($query))
{
$s = $row[0].',';
$values = explode(',', $s);
echo $values[0]; // 4
echo $values[1]; // 2
}
echo $values[0]; // 2
echo $values[1]; // 2
Try this,
$Values = array();
while($row = oci_fetch_array($query))
{
$Values[] = $row[0];
}
echo $Values[0];
First, $values as you're using it is just a string, and is not an array.
Try adding before the while loop.
$values = array();
Second, there's really no need to use explode here, it's an unnecessary step. If you only want the first column in the row, you can simply add that column to $values. (Currently you are overwriting the contents of $values at each iteration of the loop because you are missing the [].)
$values[] = $row[0];
If you're trying to put ALL of the columns in each row into values, try:
$values[] = $row;
If you're trying to individually put the contents of each column into it's own index in $values, try:
while($row = oci_fetch_array($query))
{
foreach($row as $column)
{
$values[] = $column;
}
}
Do like this:
$s = array();
while($row = oci_fetch_array($query)) {
$s[] = $row[0];
}
echo $s[0];
print_r($s);
$query = oci_parse($con, "SELECT count(*) FROM Counter GROUP BY Blog_name");
oci_execute($query);
$values = array();
while($row = oci_fetch_array($query))
{
$values[] = $row[0];
}
print_r($values);
I have a function:
function getDecision($num_players, $decisionType, $stage){
echo "in the function 1: ".$num_players."<br/>";
echo "in the function 2: ".$decisionType."<br/>";
echo "in the function 3: ".$stage."<br/>";
$x = mysql_query("
SELECT `decisionValue` FROM `teamdecision` WHERE `decisionType` = '$decisionType' && `period`= '$stage'
")or die($x."<br/><br/>".mysql_error());
$y = array();
$i="0";
while ($i<($num_players) && $row = mysql_fetch_assoc($x))
{
$y[$i] = $row['decisionValue'];
$i++;
}
return ($y);
}
Y will be populated with a number of values depending on the $num_players. I am calling the function as follows:
$value = array();
$name = array();
for ($j=0;$j<$num_players;$j++){
for ($i=0;$i<4;$i++){
$name[0] = "SUconsultant";
$name[1] = "marketT";
$name[2] = "sector";
$name[3] = "saleprice";
echo $name[$i]."<br/>";
$value[$i] = getDecision($num_players, $name[$i], $currentStage)."<br/>";
echo "Value = ".$value[$j][$i]."<br/>";
}
}
As you can see I am doing this wrong. I need to output the data located in $value however I am confused with how multi dimensional arrays work. I understand I need to read up on the subject, if possible can you point me to a suitable learning source?
So I changed up the code so that the following is being used to produce an output below:
$value = array();
$name = array();
for ($j=0;$j<$num_players;$j++){
for ($i=0;$i<4;$i++){
$name[0] = "SUconsultant";
$name[1] = "marketT";
$name[2] = "sector";
$name[3] = "saleprice";
echo $name[$i]."<br/>";
$value[$i] = getDecision($num_players, $name[$i], $currentStage)."<br/>";
echo "Value = ".$value[$j][$i]."<br/>";
}
}
I expected to output as follows:
$value[0] should contain $y which then contains each SUconsultant value. $value[1] should contain $y which then contains each marketT value and so on.
for ($i=0;$j<4;$i++){
should be
for ($j=0;$j<4;$j++){
And
$value[$i] = getDecision($num_players, $name[$i], $currentStage)."<br/>";
should be
$value[$j] = getDecision($num_players, $name[$j], $currentStage)."<br/>";
You have a $j in your first for loop, but setting and incrimenting $i in it. Maybe change them to $j as well.
EDIT
It actually looks like you have an issue with where you are returning the data:
echo "Value = ".$value[$j][$i]."<br/>";
This should be (it appears):
for ($f = 0; $f < $num_players; $f++){
echo "Value = ".$value[$i][$f]."<br/>";
}
Since you are currently on $value[$i] by the time you reach this point, then you need it to echo out one for each player.
This solution worked, after a lot of playing around it seems that the [] after of
the value array was also needed? At least I think so
$value = array();
$name = array();
for ($j=0;$j<$num_players;$j++){
for ($i=0;$i<4;$i++){
$name[0] = "SUconsultant";
$name[1] = "marketT";
$name[2] = "sector";
$name[3] = "saleprice";
echo $name[$i]."<br/>";
$value[] = getDecision($num_players, $name[$i], $currentStage);
//echo "Value = ".$value[$i]."<br/>";
echo "<br/><hr/>";
echo "Value = ".$value[$i][$j]."<br/><hr/>";
}
}
Output:
And now I have changed to:
$value[] = getDecision($num_players, $name[$i], $currentStage);
echo "Team ".$j." ".$name[$i]." = ".$value[$i][$j]."<br/>";
To get my eventual goal of:
Here is the code
$i=0;
while ($row = mysql_fetch_array($result))
{
$output.="idno".$i."=".urlencode($row['usr_id']).
'&'."res".$i."=".urlencode($row['responce']).
'&'."sex".$i."=".urlencode($row['sex']).
'&'."com1".$i."=".urlencode($row['com1']).
'&'."com2".$i."=".urlencode($row['com2']);
$i++;
}
OUTPUT i get idno is part of com2 string how do I seperate them.
You need to add an & when $i is not zero:
$i=0;
while ($row = mysql_fetch_array($result))
{
$output .= ($i ? '&' : '') . "idno".$i."=".urlencode($row['usr_id']).
'&'."res".$i."=".urlencode($row['responce']).
'&'."sex".$i."=".urlencode($row['sex']).
'&'."com1".$i."=".urlencode($row['com1']).
'&'."com2".$i."=".urlencode($row['com2']);
$i++;
}
Another solution would be using an array and join its elements afterwards:
$array = array();
$i = 0;
while ($row = mysql_fetch_array($result)) {
$array[] = "idno$i=".urlencode($row['usr_id']);
$array[] = "res$i=".urlencode($row['responce']);
$array[] = "sex$i=".urlencode($row['sex']);
$array[] = "com1$i=".urlencode($row['com1']);
$array[] = "com2$i=".urlencode($row['com2']);
$i++;
}
$output .= implode('&', $array);
Furthermore you could use the argName[] declaration that PHP will convert into an array when receiving such a request query string.
Or you could do this:
$array = array();
$i = 0;
while ($row = mysql_fetch_array($result)) {
$array["idno$i"] = $row['usr_id'];
$array["res$i"] = $row['responce'];
//etc.
$i++;
}
$output = http_build_query($array);