I need to store service_ids and country_ids in an array in this format
array
[0]["service_id"] should give service id at 0th
index
array[0]["country_id"] should give me country id at 0th index and so on.
function service_ids($conn) {
$ids = array();
$sql = "SELECT id from services";
$result = $conn->query($sql);
while($row = $result->fetch_assoc()) {
array_push($ids, $row["id"]);
}
return $ids;
}
$service_ids = service_ids($conn);
function country_ids($conn) {
$ids = array();
$sql = "SELECT id FROM countries";
$result = $conn->query($sql);
while($row = $result->fetch_assoc()) {
array_push($ids, $row["id"]);
}
return $ids;
}
$country_ids = country_ids($conn);
`//I am having problem here how to store it.
$z = array();
for ($i=0; $i < count($service_ids); $i++) {
$z = array(`
array("service_id"=>$service_ids[$i], "country_id"=>$country_ids[$i])
);
}
print_r($z);
?>
You are basically overwriting array in each iteration in final loop, instead of that store new array in new array index
$z = array();
$counter = 0;
for ($i=0; $i < count($service_ids); $i++) {
$counter = count($z);
$z[$counter]["service_id"] = $service_ids[$i];
$z[$counter]["country_id"] = $country_ids[$i];
}
Related
I am no programmer and could really use some help in configuring a query below such that it will run for each element in an array and finally add the queried data to the 'mArray'.
Below is two examples of the queries I am running. I have many more of these so it would be much more practical to include all of the ID's in an array and run a foreach loop based on the number of array elements.
$sth = mysqli_query($conn, "SELECT * FROM {$tableName} WHERE ID = 'List1'");
$list1Array = array();
while($r = mysqli_fetch_array($sth)) {
For ($n = 1; $n <= $CI_NOYEARS; $n++){
$list1Array['data'][] = $r[$n];
}
}
$sth = mysqli_query($conn, "SELECT * FROM {$tableName} WHERE ID = 'List2'");
$list2Array = array();
while($r = mysqli_fetch_assoc($sth)) {
For ($n = 1; $n <= $CI_NOYEARS; $n++){
$list2Array['data'][] = $r[$n];
}
}
$mArray = array();
$mArray['list1'] = $list1Array;
$mArray['list2'] = $list2Array;
I have been trying to create this using a simple array and foreach statement as below. However, I just can't seem to make this work. Any help is much appreciated.
$idArray = array(
"List1",
"List2",
);
foreach($idArray as $val) {
$sth = mysqli_query($conn, "SELECT * FROM {$tableName} WHERE ID = $val");
$yearsArray = array(); // Not sure what to do here
while($r = mysqli_fetch_array($sth)) {
For ($n = 1; $n <= $CI_NOYEARS; $n++){
$yearsArray['data'][] = $r[$n]; // Again not sure what to do here
}
}
}
I have set up an array called $compData by importing data from MySql and pushing two separate arrays called $yearsArray and $salesArray into $compData. Before pushing these two arrays to $compData I have first set their ['name'] to 'Year' and 'Sales', respectively. The code for this is included below.
$sth = mysqli_query($conn, "SELECT * FROM {$tableName} WHERE ID = 'ID_YEAR'");
$yearsArray = array();
$yearsArray['name'] = 'Year';
while($r = mysqli_fetch_array($sth)) {
For ($n = 1; $n <= $CI_YEARS; $n++){
$yearsArray['data'][] = $r["Year$n"];
}
}
$sth = mysqli_query($conn, "SELECT * FROM {$tableName} WHERE ID = 'IS_SALES'");
$salesArray = array();
$salesArray['name'] = 'Sales';
while($rr = mysqli_fetch_assoc($sth)) {
For ($n = 1; $n <= $CI_YEARS; $n++){
$salesArray['data'][] = $rr["Year$n"];
}
}
$compData = array();
array_push($compData,$yearsArray); // 0
array_push($compData,$salesArray); // 1
Now I want to access and echo the data in $compData by using the code below, but this doesn't work. I am not very comfortable with PHP and am wondering if I am not using the ['Year'] and ['Sales'] identifiers correctly. Any help is much appreciated.
foreach($compData['Year'] as $result) {
echo $result, '<br>';
}
foreach($compData['Sales'] as $result) {
echo $result, '<br>';
}
You've set 'Year' as the value of key 'name', but try to use it as key (of another array).
Now you have
echo $compData[0]['name']; // -> 'Year'
echo $compData[1]['name']; // -> 'Sales'
You probably want
$compData = array();
$compData['Year'] = $yearsArray;
$compData['Sales'] = $salesArray;
instead of the array_push..
I have two columns in my mysql table pro_id and pro_page. Each column contains integer values separated by comma.
example,
pro_id pro_page
-------- ------------
1,2,3 1,1,1
2 1
3,4 2,1
I want to combine first integer value from pro_id and first integer value from pro_page, second integer value from pro_id and second integer value from pro_page and so on.
For example,
from first row, result should be 11 21 31
from second row, result should be 21
from third row, result should be 32 41
I have tried using the below code,
$query = "SELECT pro_id, pro_page from tbl_checkout";
$result = mysqli_query($c,$query)or die(mysqli_error($c));
$length = mysqli_num_rows($result);
while($row = mysqli_fetch_array($result1))
{
$pro_id[] = $row["pro_id"];
$pro_page[] = $row['pro_page'];
}
for($i=0; $i<$length1; $i++)
{
$pro_id = explode(",", #$pro_id[$i]);
$pro_page = explode(",", #$pro_page[$i]);
foreach($pro_id as $product_id) {
$product_id = $product_id;
echo $product_id;
}
foreach($pro_page as $product_page) {
echo $product_page;
}
}
Now the result is,
from first row, 123111
from second row, 21
from third row, 3421
Is there any way to achieve what i want. I have tried a lot.
After fetching the array from database do the following:
$output = array();
while($row = mysqli_fetch_array($result1))
{
$pro_id = explode(',' , $row["pro_id"]);
$pro_page = explode(',' , $row['pro_page']);
for($i = 0; $i< count($pro_id); $i++)
{
$output[$i] = $pro_id[$i] . $pro_page[$i];
}
return $output;
}
You can do it via single foreach if you numbers amount is same in both arrays
$products = explode(",", #$pro_id[$i]);
$pages = explode(",", #$pro_page[$i]);
foreach( $products as $k => $product_id){
$product_page = $pages[$k];
echo $product_id . $product_page . " ";
}
Try below code:
$query = "SELECT pro_id, pro_page from tbl_checkout";
$result = mysqli_query($c,$query)or die(mysqli_error($c));
$length = mysqli_num_rows($result);
while($row = mysqli_fetch_array($result1))
{
$pro_id[] = $row["pro_id"];
$pro_page[] = $row['pro_page'];
}
for($i=0; $i<$length1; $i++){
$pro_id = explode(",", #$pro_id[$i]);
$pro_page = explode(",", #$pro_page[$i]);
$newProduct_id = '';
foreach($pro_id AS $keyIndex => $product_id) {
$newProduct_id = $pro_id[$keyIndex] . $pro_page[$keyIndex] . " ";
echo $newProduct_id;
}
}
You have to loop over both arrays at once. Easiest when using for():
$query = "SELECT pro_id, pro_page from tbl_checkout";
$result = mysqli_query($c,$query)or die(mysqli_error($c));
$length = mysqli_num_rows($result);
while($row = mysqli_fetch_array($result1))
{
$pro_id[] = $row["pro_id"];
$pro_page[] = $row['pro_page'];
}
for($i=0; $i<$length1; $i++)
{
// don't assign to $pro_id and $pro_page as variable name: it will mess up your data!
$tmp_id = explode(",", $pro_id[$i]);
$tmp_page = explode(",", $pro_page[$i]);
for($c=0; $c < count($tmp_id)) {
echo $tmp_id[$c];
echo $tmp_page[$c];
}
}
Another problerm is that you use $pro_id and $pro_page for two different purposes. You use it for storage of db results and to store the exploded numbers from this data. Use different variable names.
I have a $nr variable that as the number of arrays with the same name that i created in a previous function, something like this:
$var = 'sorteios_'.$nr;
$$var = array($sorteio_id);
I have it in a While function so it was created something like 3 arrays with the names:
$sorteios_1 , $sorteios_2 , $sorteios_3
And i want to add them inside an array_merge, so i have to use the $nr that says how many arrays with the same name were created.
$nr = 3;
i want that the final result looks something like this.
$result = array_merge($sorteios_1, $sorteios_2, $sorteios_3);
That's the whole function if you want to check it (it's not complete because of the problem i'm having):
function check_sorteios(){
global $db;
$id = $_SESSION['userid'];
$query1 = "SELECT * FROM sorteios WHERE userid = $id";
$result1 = $db->query($query1);
$count = $result1->rowCount();
if ($count == 0){ $sorteios = 0; echo "sem sorteios";}
else{
$numero = 0;
$sorteios = 0;
$nr = 0;
while($row1 = $result1->fetch()){
if ( $numero == $count ){ return 0;}
$numero++;
$sorteio_id = $row1['id'];
$query2 = "SELECT * FROM productos WHERE id = $sorteio_id";
$result2 = $db->query($query2);
while($row2 = $result2->fetch()){
$data = $row2['data'];
$titulo = $row2['titulo'];
if (strtotime($data) > time()){
if(!isset($$sorteio_id)){
$$sorteio_id = 1;
}
$nr++;
$var = 'sorteios_'.$nr;
$$var = array($sorteio_id);
}
}
}
}
$result = array_merge($sorteios_1, $sorteios_2, $sorteios_3);
$occurences = array_count_values($result);
print_r($occurences);
}
You could try to create a string containing the code executing array_merge of all your arrays and then pass it to the eval function (http://it1.php.net/manual/it/function.eval.php)...
Something like this:
$str="\$result=array_merge(";
for($i=1;$i<=$nr;$i++){
$str.="\$sorteios_$i,";
}
$str=substr($str,0,-1);
$str.=");";
eval($str);
Then in $result you have what you need.
Is there a reason you can't recursively merge?
if ($nr > 0) {
$result = $sorteios_1;
for ($i = 2; $i <= $nr; ++$i) {
$result = array_merge($result, ${'sorteios_'.$i});
}
} else {
// you might want to handle this case differently
$result = array();
}
I've got the following sql query:
$sql = "SELECT lat, lang
FROM users";
I then use the following code to put the results of the array into two arrays, one for lat and one for lang.
$i = 0;
foreach($results as $row) {
$latArray = array();
$langArray = array();
$latArray[$i] = $row['lat'];
$langArray[$i] = $row['lang'];
$i = ($i + 1);
}
However, it seems that only the last value that is passed to the array is stored. When I echo out each value of the array I get the following error: Undefined offset: 0 which I believe means theres nothing at latArray[0].
I'm sure I've missed something obvious here but why aren't all the values copied to the new array?
$i = 0;
$latArray = array(); //Declare once, do not redeclare in the loop
$langArray = array();
foreach($results as $row) {
$latArray[$i] = $row['lat'];
$langArray[$i] = $row['lang'];
$i = ($i + 1);
}
Declare your array before the loop
$latArray = array();
$langArray = array();
foreach($results as $row) {
$latArray[$i] = $row['lat'];
$langArray[$i] = $row['lang'];
$i = ($i + 1);
}
You should put
$latArray = array();
$langArray = array();
Before foreach cycle (like you do with your counter $i), 'cause with every new value from $result it resets thous values..
so your code will look like:
$i = 0;
$latArray = array();
$langArray = array();
foreach($results as $row) {
$latArray[$i] = $row['lat'];
$langArray[$i] = $row['lang'];
$i = ($i + 1);
}
use fetch_assoc instead:
$latArray = array();
$langArray = array();
while($row = mysql_fetch_assoc($your_query)){
$latArray[$i] = $row['lat'];
$langArray[$i] = $row['lang'];
$i++;
}
if u are using msqli us mysqli_fetch_assoc