I'm trying to get the result of a stored procedure in MySQL into an array with use of php. The code I have:
function get_all_uzovi($dbc) {
//$query = "SELECT diagnose_id, diagnose_code, specialisme_agb_code_fk
// FROM tbl_diagnoses
// WHERE specialisme_agb_code_fk = '$var_chosen_specialism'
// ORDER BY diagnose_code ASC";
$result = mysqli_query($dbc,"CALL spGetUzovi");
//WHAT DOES NOT WORK:
//$data = array();
//while ( $row = $result->fetch_assoc() ) {
// $data[] = $row;
//}
//return json_encode($data);
//WHAT DOES WORK:
while ($row = mysqli_fetch_array($result)){
echo $row[0] . " - " . + $row[1];
}
}
The code under "//WHAT DOES NOT WORK" is what I need: the result as a json format. For some reason it gives me nothing..
The code under "//WHAT DOES WORK", does work, but this is not what I want.
the code for the sp:
CREATE DEFINER=`ziekenh3`#`localhost` PROCEDURE `spGetUzovi`()
NO SQL
SELECT *
FROM tbl_uzovi
the code that I use when working with queries (which does work) instead of sp:
function get_diagnoses($dbc,$var_chosen_specialism) {
$query = "SELECT diagnose_id, diagnose_code, specialisme_agb_code_fk
FROM tbl_diagnoses
WHERE specialisme_agb_code_fk = '$var_chosen_specialism'
ORDER BY diagnose_code ASC";
$result = mysqli_query($dbc,$query);
$data = array();
//while ( $row = $result->fetch_assoc() ) {
while ( $row = mysqli_fetch_assoc($result) ) {
$data[] = $row;
}
return json_encode($data);
}
Any thoughts?
Does this work?
function get_all_uzovi($dbc) {
$result = mysqli_query($dbc,"CALL spGetUzovi");
$data = array();
while ( $row = $result->fetch_assoc() ) {
$data[] = $row;
}
return json_encode($data);
}
I Solved it. A bit of a stupid problem: there where some fields in the result set that contained characters like: , ( . etc. I don't think json likes this..
When I did a SELECT * FROM on another table it worked. So, my code that works now is:
function get_all_uzovi($dbc) {
$q = "CALL spGetUzovi";
$r = mysqli_query($dbc,$q);
while ($row = mysqli_fetch_assoc($r)) {
$data[] = $row;
}
return json_encode($data);
}
I'm sorry for the inconvenience!
Related
I created a function that read data from a mysql db.
I want to put the data into a array and read that outside of the PHP function.
function showCategory($con) {
$sql = "SELECT * FROM kategorien";
$kategorien = array();
$result = $con->query($sql);
while($row = $result->fetch_assoc()) {
$kategorien[] = $row["kategorie"];
return $kategorien;
}
}
To load the data outside from function:
$kategorien = showCategory($con);
echo $kategorien['kategorie'][0];
It doesn't work. Whats wrong?
The
return $kategorien;
will exit the loop and the function, so move this to the end of the function and not in the loop.
function showCategory($con) {
$sql = "SELECT kategorie FROM kategorien";
$kategorien = array();
$result = $con->query($sql);
while($row = $result->fetch_assoc()) {
$kategorien[] = $row["kategorie"];
}
return $kategorien;
}
Rather than using *, it's also worth specifying the column names if you only need some of them.
Display the data using...
$kategorien = showCategory($con);
print_r( $kategorien );
or use a foreach()...
$kategorien = showCategory($con);
foreach ( $kategorien as $kat ) {
echo $kat.PHP_EOL;
}
Use this instead, because returning $kategorien will exit the loop, so it will only run once.
function showCategory($con) {
$sql = "SELECT * FROM kategorien";
$kategorien = array();
$result = $con->query($sql);
while($row = $result->fetch_assoc()) {
$kategorien[] = $row["kategorie"];
}
return $kategorien;
}
So the task is:
Do a query like Select * from table.
Take some cell value
Insert this value to a new query.
What do I have so far:
$Conn = odbc_connect("...");
$Result = odbc_exec("Select ...");
while($r = odbc_fetch_array($Result))
// showing result in a table
Here it looks like I should use the r array and insert data like
$var = r['some_field'];
$query = 'Select * from table where some_field = {$var}";
But how can I fill this array with values and how to make it available out of while loop?
Here I'm using odbc, but it doesn't matter, I need the algorithm. Thanks.
The whole code looks like:
<?php
$data = array();
$state = 'false';
if($_REQUEST['user_action']=='')
{
$Conn = odbc_connect("...");
$data = array();
if($_REQUEST['name']!='')
{
$Result = odbc_exec($Conn, "select ...");
//Showing result table
while($r = odbc_fetch_array(Result))
{
array_push($data, $r['cardgroup']);
$state = 'true';
}
// print_r($data); WORKS;
}
}
if ($_REQUEST['user_action'] == 'action1')
{
//I need to use $data HERE. Doesn't work
// $state = 'false' here...
}
?>
Define array outside while loop
$data = array();//defining
while($r = odbc_fetch_array($Result))
use array_push() inside while loop
array_push($data, $r['some_field']);
then try to print array of complete data outside loop
print_r($data);
Updates
Place $data = array(); at the top of first IF statement. Try this code:
$data = array();//at top
if($_REQUEST['user_action']=='')
{
$Conn = odbc_connect("...");
if($_REQUEST['name']!='')
{
$Result = odbc_exec($Conn, "select ...");
//Showing result table
while($r = odbc_fetch_array(Result))
{
array_push($data, $r['cardgroup']);
}
// print_r($data); WORKS;
}
}
if ($_REQUEST['user_action'] == 'action1')
{
//print_r($data) works here also
}
try something like this to store data in array
$allrows = array();
while($r = odbc_fetch_array( $result )){
$allrows[] = $r;
}
use foreach loop to print or use as per your choice
foreach($allrows as $singlerow) {
//use it as you want, for insert/update or print all key value like this
foreach($singlerow as $key => $value) {
//echo $key . '=='. $value;
}
}
You can try this as i understand your query hope this is your answer
$arr ='';
while($row = odbc_fetch_array($Result)) {
$arr .= '\''.$row['some_field'].'\',';
}
$arr = trim($arr, ",");
$query = "SELECT * from table where some_field IN ($arr)";
Your all task can be completed in single query
INSERT INTO table2 (col1, col2, ..., coln)
SELECT col1, col2, ..., coln
FROM table1
MySql query returns me a multi-dimensional array :
function d4g_get_contributions_info($profile_id)
{
$query = "select * from contributions where `project_id` = $profile_id";
$row = mysql_query($query) or die("Error getting profile information , Reason : " . mysql_error());
$contributions = array();
if(!mysql_num_rows($row)) echo "No Contributors";
while($fetched = mysql_fetch_array($row, MYSQL_ASSOC))
{
$contributions[$cnt]['user_id'] = $fetched['user_id'];
$contributions[$cnt]['ammount'] = $fetched['ammount'];
$contributions[$cnt]['date'] = $fetched['date'];
$cnt++;
}
return $contributions;
}
Now I need to print the values in the page where I had called this function. How do I do that ?
change the function like this:
while($fetched = mysql_fetch_array($row, MYSQL_ASSOC))
{
$contributions[] = array('user_id' => $fetched['user_id'],
'ammount' => $fetched['ammount'],
'date' => $fetched['date']);
}
return $contributions;
Then try below:
$profile_id = 1; // sample id
$result = d4g_get_contributions_info($profile_id);
foreach($result as $row){
$user_id = $row['user_id']
// Continue like this
}
I get an array of values returned from the following function:
function get_subscribitions($user)
{
$user = mysql_real_escape_string ($user);
$sql = "SELECT 'user_id' FROM `subscribe` WHERE subscriber = '$user'";
$result = mysql_query($sql);
$rows = array();
while ($row = mysql_fetch_assoc($result)) {
$rows[] = $row;
}
mysql_free_result($result);
return $rows;
I now want to use these values in a new function, where each "user_id" is used to collect text from the database through this function:
function get_text($writer) {
$writer = mysql_real_escape_string ($writer);
$sql = "SELECT * FROM `text` WHERE user_id='$writer' ORDER BY timestamp desc";
$result = mysql_query($sql);
$rows = array();
while ($row = mysql_fetch_assoc($result)) {
$rows[] = $row;
}
mysql_free_result($result);
return $rows;
However the returned value from the first function is an array, and as I've learnt the hard way, arrays cannot be treated by "mysql_real_escape_string".
How can I make the second function handle the values that I got from the first function?
Any responses appreciated.
Thank you in advance.
Your first mistake is to use mysql_fetch_assoc when only selecting one column. You should use mysql_fetch_row for this. This is likely going to fix your primary problem.
Could look like this:
$subs = get_subscribitions($whateverId);
$texts = get_text($subs);
function get_subscribitions($user)
{
$user = mysql_real_escape_string ($user);
$sql = "SELECT 'user_id' FROM `subscribe` WHERE subscriber = '$user'";
$result = mysql_query($sql);
$rows = array();
while ($row = mysql_fetch_row($result)) {
$user_id = $row['user_id'];
$rows[$user_id] = $user_id;
}
mysql_free_result($result);
return $rows;
}
function get_text($writer) {
$writers = implode(",", $writer);
$sql = "SELECT * FROM `text` WHERE user_id IN ({$writers}) ORDER BY timestamp DESC";
$result = mysql_query($sql);
$rows = array();
while ($row = mysql_fetch_array($result)) {
$rows[] = $row;
}
mysql_free_result($result);
return $rows;
}
This will save you a lot of time, because you can get all data from 'text' in one statement.
The solution is to avoid placing arrays in your $rows array in the first function. Instead of:
while ($row = mysql_fetch_assoc($result)) {
$rows[] = $row;
}
try:
while ($row = mysql_fetch_assoc($result)) {
$rows[] = $row['user_id'];
}
This will place only the value from column 'user_id' in the $rows array.
In order to use the second function you must iterate over the array returned from the first one. Something like this could work for you:
$user_subscriptions = get_subscribitions($user);
foreach($user_subscriptions as $subscription) {
$texts = get_text($subscription['user_id']);
foreach($texts as $text) {
// do something with the fetched text
}
}
As George Cummins says,
while ($row = mysql_fetch_assoc($result)) {
$rows[] = $row['user_id'];
}
and, to speed up the second function:
function get_text($writer)
{
$sql = "SELECT * FROM `text` WHERE user_id in (".implode(',',$writer).") ORDER BY timestamp desc";
$rows = array();
if ($result = mysql_query($sql))
{
while ($row = mysql_fetch_assoc($result))
{
$rows[] = $row;
}
mysql_free_result($result);
}
return $rows;
}
The change to the query means that you only do one in total rather than one for each ID thus removing the time taken to send the query to the server and get a response multiple times. Also, if the query fails, the function returns an empty array
Use :
string implode ( string $glue , array $pieces )
// example, elements separated by a comma :
$arrayasstring = impode(",", $myarray);
function get_subscribitions($user)
{
$user = mysql_real_escape_string ($user);
$sql = "SELECT 'user_id' FROM `subscribe` WHERE subscriber = '$user'";
$result = mysql_query($sql);
$row = mysql_fetch_row($results);
mysql_free_result($result);
return intval($row['user_id']);
}
it return only the user id you can used it in the 2nd function
$data = mysql_query("SELECT * FROM users);
now the data is stored in the $data variable. I would like to store the mysql data in an array and return that.
$data_array = mysql_fetch_assoc($data);
This would store the first row (the first array) of the data.
now to store all the rows I was wondering what should I do.
The standard approach:
$res = mysql_query($sql);
$data = array();
while(($row = mysql_fetch_array($res)) !== false) {
$data[] = $row;
}
// now $data is an array with all rows
http://php.net/manual/en/function.mysql-fetch-array.php
Returns an array of strings that
corresponds to the fetched row, or
FALSE if there are no more rows.
This approach works with mysql_fetch_* functions.
while ($row = mysql_fetch_assoc($data))
{
array_push($data_array,$row);
}
If your result set is big, it's not a good idea to do that. It could use a lot of memory on the process.
Having said that, you could store the whole thing on an array like this:
<?php
$query="select * from table_xyz";
$result = mysql_query($query) or die(mysql_error());
$arr_table_result=mysql_fetch_full_result_array($result);
function mysql_fetch_full_result_array($result)
{
$table_result=array();
$r=0;
while($row = mysql_fetch_assoc($result)){
$arr_row=array();
$c=0;
while ($c < mysql_num_fields($result)) {
$col = mysql_fetch_field($result, $c);
$arr_row[$col -> name] = $row[$col -> name];
$c++;
}
$table_result[$r] = $arr_row;
$r++;
}
return $table_result;
}
?>
Got the code sample from the PHP site.
$res = mysql_query($sql);
$data = array();
while(($row[] = mysql_fetch_array($res)) !== false) {
}