I have this function :
function userKids(mysqli $Con, $Parent) {
$stmt = $Con->prepare('SELECT KidsName, KidsAge, KidsGender FROM Kids WHERE Parent = ?');
$stmt->bind_param('s', $Username);
$stmt->execute();
$Kid = null;
$Kids = array();
$stmt->bind_result($Kid, $KidsAge, $KidsGender);
while($stmt->fetch()) {
$Kids[] = $Kid;
}
return $Kids;
}
currently my WHILE loop produce array like this :
Array ( [0] => john [1] => jane )
Now, how to produce multidimensional array so I can get the Age and Gender as well, like this :
Array
(
[john] => Array
(
[0] => 3
[1] => male
)
[jane] => Array
(
[0] => 2
[1] => female
)
)
Change the line:
$Kids[] = $Kid;
To:
$Kids[$Kid] = array($KidsAge, $KidsGender);
I recommend that you use an associative array for the second dimension as well. So:
$Kids[$Kid] = array('age' => $KidsAge, 'gender' => $KidsGender);
replace the end of your code by:
$stmt->bind_result($KidName, $KidAge, $KidGender);
while($stmt->fetch()) {
$Kids[$KidName] = array($KidAge,$KidGender);
}
return $Kids;
Related
I have build my user table like this:
Now I would like to select the 3 blue rows.
I have build the following function:
function display_children($parent, $array = array()) {
global $db;
$stmt = $db->prepare("SELECT id AS man, parent_id FROM user WHERE parent_id= ?");
$stmt->execute(array($parent));
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
display_children($row['man'], $array);
$array[] = array("man" => $row['man'], "parent_id" => $row['parent_id']);
echo $row['man']."\n"; //for debug
}
return $array;
}
print_r(display_children(50001));
My Output is:
50002
50004
50003
Array
(
[0] => Array
(
[man] => 50002
[parent_id] => 50001
)
[1] => Array
(
[man] => 50003
[parent_id] => 50001
)
)
The first three lines are correct, but the array is missing one.
The problem is, that the first parent_id has two rows. But the array is empty at the beginning. Is there a solution for my query?
the solution was to change the following line from
display_children($row['man'], $array);
to
$array = display_children($row['man'], $array);
I need to show the email address, first and last names of users who are not registered in my new database.
I selected three columns of my old database and three columns of my new database. I created two arrays and each receives the result of the query.
But when the comparing is displaying all users, the comparison is not made.
Check my code:
while($array = $resultado->fetch_array(MYSQLI_NUM)){
$portal_old[] = $array;
}
while($array2 = $resultado2->fetch_array(MYSQLI_NUM)){
$portal_new[] = $array2;
}
foreach ($portal_old as $portal) {
if(!in_array($portal, $portal_new)){
$result[] = $portal;
}
}
Assuming email address should be able to uniquely identify a registered user, you can use email address as a key as you build your array of results from each database.
while($array = $resultado->fetch_array(MYSQLI_ASSOC)){
$portal_old[$array['email']] = $array;
}
while($array2 = $resultado2->fetch_array(MYSQLI_ASSOC)){
$portal_new[$array2['email']] = $array2;
}
In order for this to work, you will need to either use MYSQLI_ASSOC instead of MYSQLI_NUM when fetching, and specify the name of the email column when building your array, or if you are using MYSQLI_NUM, specify the numeric index of the email column.
Then you can use array_diff_key to easily find the result you are looking for.
$result = array_diff_key($portal_old, $portal_new);
This works, John Smith here gets in $result while Joe Black doesn't:
<?php
$name = array(0 => 'john', 1 => 'smith');
$portal_old[] = $name;
$name = array(0 => 'joe', 1 => 'black');
$portal_old[] = $name;
//print_r($portal_old);
//shows: Array ( [0] => Array ( [0] => john [1] => smith ) [1] => Array ( [0] => joe [1] => black ) )
$name = array(0 => 'jason', 1 => 'mill');
$portal_new[] = $name;
$name = array(0 => 'joe', 1 => 'black');
$portal_new[] = $name;
//print_r($portal_new);
//shows: Array ( [0] => Array ( [0] => jason [1] => mill ) [1] => Array ( [0] => joe [1] => black ) )
foreach($portal_old as $key=>$value) {
if(!in_array($value[0], $portal_new[0]) && !in_array($value[1], $portal_new[1])) {
$result[] = $value;
}
}
print_r($result);
//shows: Array ( [0] => Array ( [0] => john [1] => smith ) )
?>
It's because the results of $portal_old and $portal_new are multidimensional arrays, you need to compare by looking inside the arrays of the arrays.
This will work for you :
$i = $j = 0;
while($array = $resultado->fetch_array(MYSQLI_NUM)){
$portal_old[$i][$array['0'].' | '.$array['1'].' | '.$array['2']] = $array;
}
while($array2 = $resultado2->fetch_array(MYSQLI_NUM)){
$portal_new[$j][$array2['0'].' | '.$array2['1'].' | '.$array2['2']] = $array2;
}
// Get only array keys
$old_arr_key = array_keys($portal_old[0]);
$new_arr_key = array_keys($portal_new[0]);
// Result
$result = array_diff($new_arr_key,$old_arr_key);
print_r($result);
public function getUserList($user_id){
$list_query = "SELECT ACTUAL_USER_ID FROM TABLE WHERE USER_ID = ".$user_id." ";
$result = parent::queryresult($list_query);
return $result;
}
foreach ($result as $uresult){ //$result contains user_id
$userlist[] = $classObject->getUserList($uresult['USER_ID']);
}
The loop outouts below
Array
(
[0] => Array
(
[0] => Array
(
[ACTUAL_USER_ID] => 133
)
)
[1] => Array
(
[0] => Array
(
[ACTUAL_USER_ID] => 122
)
)
)
How can I remove nested arrays and make it like below
Array
(
[0] => Array
(
[ACTUAL_USER_ID] => 133
)
[1] => Array
(
[ACTUAL_USER_ID] => 122
)
)
Use brackets [] to access array's elements
foreach ($result as $uresult){ //$result contains user_id
$userlist[] = $classObject->getUserList($uresult['USER_ID'])[0];
}
Edit: on different/old version of PHP you need to put array into variable first:
foreach ($result as $uresult){ //$result contains user_id
$row = $classObject->getUserList($uresult['USER_ID']);
$userlist[] = $row[0];
}
Change foreach statement as below
foreach ($result as $uresult){ //$result contains user_id
$res = $classObject->getUserList($uresult['USER_ID']);
if(isset($res[0]))
$userlist[] = $res[0];
}
Fetch all rows based on the query into an array and return single value
Query database for data
//----------------------------------------------------------------------
$result = mysql_query("SELECT * FROM $tableName"); query
$array = mysql_fetch_row($result);
fetch result In Array
$arr = array();
while ($row = mysql_fetch_assoc($result)) {
$arr2 = array();
foreach ($row as $val) $arr2[] = $val;
$arr[] = $arr2;
}
Result Will Be
Array
(
[0] => Array
(
[0] => status_site
[1] => 0
)
[1] => Array
(
[0] => title_site
[1] => Script
)
[2] => Array
(
[0] => keys_site
[1] =>
)
)
I need to make function that return element 0 to 1
ex: function getsetting (title_site){
return value script}
Replace the $arr[] = $arr2; with $arr[$arr2[0]] = $arr2[1];. That might solve your problem.
How can I create an array like the following in PHP from a database result set using a loop:
Array
(
[T] => Array
(
[0] => Array
(
[id] => 1
[name] => Timer
)
[1] => Array
(
[id] => 2
[name] => Tub
)
)
[P] => Array
(
[0] => Array
(
[id] => 3
[name] => Paper
)
[1] => Array
(
[id] => 4
[name] => Puppy
)
)
)
You will notice that the array keys are a letter, which is taken from the 'name' value in the result set. The loop will be something like this:
while($result = $db->fetch($query) {
$key = $result['name']{0};
// your answer :-)
}
I think something like this should do it:
$sql = 'SELECT id, name FROM table';
$result = mysql_query( $sql);
$answer = array();
while( $row = mysql_fetch_assoc( $result))
{
$answer[ strtoupper($row['name'][0]) ][] = $row;
}
mysql_free_result( $result);
var_dump( $answer);
OR, to be more specific (if your query is returning more columns than just id and name):
while( $row = mysql_fetch_assoc( $result))
{
$answer[ strtoupper($row['name'][0]) ][] = array(
'id' => $row['id'],
'name' => $row['name']
);
}
$indexArray = array(); // Array from Example
while($result = $db->fetch($query) {
$key = $result['name']{0};
if(!isset($indexArray[$key])) {
$indexArray[$key] = array();
}
array_push($indexArray[$key], $result);
}
$results = array();
while($result = $db->fetch($query)) {
$key = strtoupper($result['name'][0]);
if(!isset($results[$key]))
$results[$key] = array();
$results[$key][] = $result;
}