I need to get about 70.000 lines from database and I want to get batch by batch but like I did I get only some lines :
$sql = "SELECT COUNT(*) as num FROM ".self::TABLE_NAME;
$stmt = Db::get()->prepare($sql);
$stmt->execute();
$results = $stmt->fetch();
$batches = $results['num'] / 1000;
$limit = 0;
for ($i = 0; $i <= $batches; $i++) {
$offset = $i * 1000;
$sql = "SELECT * FROM ".self::TABLE_NAME." LIMIT $limit,$offset";
$stmt = Db::get()->prepare($sql);
$stmt->execute();
$results = $stmt->fetchAll();
foreach ($results as $result) {
echo $result['supplierName'].PHP_EOL;
}
$limit+=1000;
}
Have you an idea ? Thx in advance.
Related
I want to assign same quantity of work by each worker available in php.
This is my array of available worker:
if (!isset($array_worker)){
$array_worker = array();
}
$stmt = $dbh->prepare("SELECT username
FROM group_members
WHERE grp_id = :grp_id
AND statut > 0
AND specification != 2");
$stmt->bindValue(':grp_id', $grp_id);
$stmt->execute();
$data = $stmt->fetchAll(PDO::FETCH_ASSOC);
foreach ($data as $key => $value){
if (!in_array($value['username'], $array_worker)){
array_push($array_worker, $value['username']);
}
}
This array_worker return 2 entries
That is what I have try
$n = 0;
for ($i = 0; $i < count_worknotdone($grp_id); $i++) {
if ($n >= count($array_worker)){
$n = 0;
}
$stmt = $dbh->prepare("UPDATE work
SET worker = :worker
WHERE grp_id = :grp_id
AND worker IS NULL");
$stmt->bindValue(':worker ', $array_worker[$n]);
$stmt->bindValue(':grp_id', $grp_id);
$stmt->execute();
$n++;
}
but that assign only the first worker for each work..
What I want for example if we have 2 workers available and 4 work not done
We assign 2 work for each workers.
Thanks you
if (!isset($array_worker)){
$array_worker = array();
}
if (!isset($array_id)){
$array_id = array();
}
$stmt = $dbh->prepare("SELECT username FROM group_members WHERE grp_id = :grp_id AND statut > 0 AND specification != 2");
$stmt->bindValue(':grp_id', $grp_id);
$stmt->execute();
$data = $stmt->fetchAll(PDO::FETCH_ASSOC);
foreach ($data as $key => $value){
if (!in_array($value['username'], $array_worker)){
array_push($array_worker, $value['username']);
}
}
$stmt = $dbh->prepare("SELECT id FROM work WHERE grp_id = :grp_id AND statut < 1 AND worker IS NULL");
$stmt->bindValue(':grp_id', $grp_id);
$stmt->execute();
$data = $stmt->fetchAll(PDO::FETCH_ASSOC);
foreach ($data as $key => $value){
if (!in_array($value['id'], $array_id)){
array_push($array_id, $value['id']);
}
}
$n = 0;
for ($i = 0; $i < count($array_id); $i++) {
if ($n >= count($array_worker)){
$n = 0;
}
$stmt = $dbh->prepare("UPDATE work SET worker = :worker WHERE id = :id AND grp_id = :grp_id AND worker IS NULL");
$stmt->bindValue(':id', $array_id[$i]);
$stmt->bindValue(':worker', $array_worker[$n]);
$stmt->bindValue(':grp_id', $grp_id);
$stmt->execute();
$n++;
}
I have done what I want by doing that, that for sure can be improve but its working..
I have 2 Columns in mysql. valami2 and playerID in table players_extra.
I will the following:
give 3000 coppers for the first row in valami2, then 2500 coppers for the second(then each row -500 coppers until the 5th place)....after the 5th place give 500 until the 10th place. for the CORRECT payerID.
$aseco->console('>> Updating `hetimostfin` counts for all Players...');
$hetimostfin = array();
$line = 0;
$coppers = 3000;
$query = "
SELECT
`playerID`,
COUNT(`valami2`) AS `Count`
FROM `players_extra`
GROUP BY `playerID`;
";
$res2 = mysql_query($query);
if ($res2) {
if (mysql_num_rows($res2) > 0) {
while ($row = mysql_fetch_object($res2)) {
$hetimostfin[$row->playerID] = $row->Count;
}
foreach ($hetimostfin as $id => $count) {
$res2 = mysql_query("
UPDATE `players_extra`
SET `valami2` =(`valami2`+'".$coppers."')
WHERE `playerID` = ". $id ."
");
$line ++;
$coppers=($coppers-500);
if ($line >= 6) {
$coppers=500;
}
if ($line == 10){
break;
}
}
}
}
Try PDO. It's a much better and safer way of interacting with databases for PHP. http://php.net/manual/en/pdo.connections.php
$dbh = new PDO("mysql:host=$host;dbname=$dbname", $user, $pass);
$hetimostfin = array();
$coppers = 3000;
$line = 0;
$query = <<<SQL
SELECT
playerID,
COUNT(valami2) AS `count`
FROM players_extra
GROUP BY playerID;
SQL;
foreach($dbh->query($query, PDO::FETCH_ASSOC) as $row) {
$hetimostfin[[$row['playerID']] = $row['count'];
// execute update statement
$line++;
}
This is mysql connection coding, it is working fine
the same code i wrote with pdo connection,it is not working i'm new to php please help me to get out of this problem.
thanks in advance
<?php
error_reporting(0);
ini_set('max_execution_time', 600);
require_once 'config.php';
if(isset($_GET["nm_mask"]))
$nm_mask = $_GET['nm_mask'];
else
$nm_mask = "";
if(isset($_GET["cd_mask"]))
$cd_mask = $_GET['cd_mask'];
else
$cd_mask = "";
if(isset($_GET["func"]))
$func = $_GET['func'];
else
$func = "";
$where = "WHERE 1=1";
if($nm_mask!='')
$where.= " AND Login LIKE '$nm_mask%'";
if($cd_mask!='')
$where.= " AND Manager_Login LIKE '$cd_mask%'";
if($func!='')
$where.= " AND Function LIKE '$func%'";
$page = $_GET['page']; // get the requested page
$limit = $_GET['rows']; // get how many rows we want to have into the grid
$sidx = $_GET['sidx']; // get index row - i.e. user click to sort
$sord = $_GET['sord']; // get the direction
if(!$sidx) $sidx =1; // connect to the database
$result = mysqli_query("SELECT COUNT(*) AS count FROM EmpMasterTB ".$where);
$row = mysqli_fetch_array($result,MYSQLI_ASSOC);
$count = $row['count'];
if( $count >0 ) {
$total_pages = ceil($count/$limit);
} else {
$total_pages = 0;
}
if ($page > $total_pages) $page=$total_pages;
if ($limit<0) $limit = 0;
$start = $limit*$page - $limit; // do not put $limit*($page - 1)
if ($start<0) $start = 0;
$SQL = "SELECT * from EmpMasterTB ". $where ." ORDER BY $sidx $sord LIMIT $start , $limit";
$result = mysqli_query( $SQL ) or die("Couldn?t execute query.".mysqli_error());
$responce->page = $page;
$responce->total = $total_pages;
$responce->records = $count;
$i=0;
while($row = mysqli_fetch_array($result,MYSQLI_ASSOC)) {
$responce->rows[$i]['id']=$row[WeekNo].$row[Login];
$responce->rows[$i]['cell']=array($row['WeekNo'],$row['WeekBeginning'],$row['SITE'],$row['Name'],$row['WFH'],$row['Login'],$row['Manager_Login'],$row['Lead'],$row['Cost_center'],$row['Business_Title'],$row['Function'],$row['Workgroup'],$row['Login_time'],$row['ROLE'],$row['Secondary_Skill'],$row['Weekoff'],""); $i++;
}
echo json_encode($responce);
?>
PDO connection code
<?php
error_reporting(0);
ini_set('max_execution_time', 600);
require_once 'config.php';
if(isset($_GET["nm_mask"]))
$nm_mask = $_GET['nm_mask'];
else
$nm_mask = "";
if(isset($_GET["cd_mask"]))
$cd_mask = $_GET['cd_mask'];
else
$cd_mask = "";
if(isset($_GET["func"]))
$func = $_GET['func'];
else
$func = "";
$where = "WHERE 1=1";
if($nm_mask!='')
$where.= " AND Login LIKE '$nm_mask%'";
if($cd_mask!='')
$where.= " AND Manager_Login LIKE '$cd_mask%'";
if($func!='')
$where.= " AND Function LIKE '$func%'";
$page = $_GET['page']; // get the requested page
$limit = $_GET['rows']; // get how many rows we want to have into the grid
$sidx = $_GET['sidx']; // get index row - i.e. user click to sort
$sord = $_GET['sord']; // get the direction
if(!$sidx) $sidx =1; // connect to the database
$count = $dbh->exec("SELECT COUNT(*) AS count FROM EmpMasterTB ".$where);
if( $count >0 ) {
$total_pages = ceil($count/$limit);
} else {
$total_pages = 0;
}
if ($page > $total_pages) $page=$total_pages;
if ($limit<0) $limit = 0;
$start = $limit*$page - $limit; // do not put $limit*($page - 1)
if ($start<0) $start = 0;
$SQL = "SELECT * from EmpMasterTB ". $where ." ORDER BY $sidx $sord LIMIT $start , $limit"; /*** The SQL SELECT statement ***/
$stmt = $dbh->query($SQL); /*** fetch into an PDOStatement object ***/
$responce->page = $page;
$responce->total = $total_pages;
$responce->records = $count;
$i=0;
/*** echo number of columns ***/
$obj = $stmt->fetch(PDO::FETCH_OBJ);
/*** loop over the object directly ***/
{
$responce->rows[$i]['id']=$obj->WeekNo.$obj->Login;
$responce->rows[$i]['cell']=array($obj->WeekNo ,$obj->WeekBeginning ,$obj->SITE ,$obj->Name ,$obj->WFH ,$obj->Login ,$obj->Manager_Login ,$obj->Lead ,$obj->Cost_center ,$obj->Business_Title ,$obj->Function ,$obj->Workgroup ,$obj->Login_time ,$obj->ROLE ,$obj->Secondary_Skill ,$obj->Weekoff ); $i++;
}
echo json_encode($ );
?>
You have missed for loop and you didn't pass response in json_encode().
Please check my below code:
/*** echo number of columns ***/
$objs = $stmt->fetch(PDO::FETCH_OBJ);
/*** loop over the object directly ***/
foreach($objs as $obj)
{
$responce->rows[$i]['id']=$obj->WeekNo.$obj->Login;
$responce->rows[$i]['cell']=array($obj->WeekNo ,$obj->WeekBeginning ,$obj->SITE ,$obj->Name ,$obj->WFH ,$obj->Login ,$obj->Manager_Login ,$obj->Lead ,$obj->Cost_center ,$obj->Business_Title ,$obj->Function ,$obj->Workgroup ,$obj->Login_time ,$obj->ROLE ,$obj->Secondary_Skill ,$obj->Weekoff ); $i++;
}
echo json_encode($responce );
How can I get a count of the number of affected rows when I'm deleting multiple rows in PDO? This is the technique I'm using to delete multiple rows:
$selected = $_POST['checkbox'];
$N = count($selected);
for ($i = 0; $i < $N; $i++) {
$result = $dbh->prepare('DELETE FROM users WHERE id= :id');
$result->bindParam(':id', $selected[$i], PDO::PARAM_INT);
$result->execute();
}
I tried this, but it always returned 1:
$deleted = $result->rowCount();
if ($deleted) {
echo $deleted.' was deleted.';
}
You're running a loop, so each call is deleting 1; you need to add a counter.
So add:
$deleted += $result->rowCount();
inside the loop
and then outside:
if ($deleted) {
echo $deleted.' was deleted.';
}
If the id field is unique, then that statement could affect at most 1 row. However you are preparing a new statement and executing it in a loop. You should try adding up how many you delete.
$deleted = 0;
for ($i = 0; $i < $N; $i++) {
$result = $dbh->prepare('DELETE FROM users WHERE id= :id');
$result->bindParam(':id', $selected[$i], PDO::PARAM_INT);
$result->execute();
$deleted = $deleted + $result->rowCount();
}
echo $deleted.' was deleted.';
Here's a way to do it in 1 delete instead of running multiple deletes.
This way rowCount() will show the actual results deleted.
$selected = $_POST['checkbox'];
$placeholder = array();
$values = array();
foreach ($selected as $id) {
$placeholder[] = ":".$id;
$values[":".$id] = $id;
}
$sql = "Delete FROM users WHERE id IN (".implode(', ',$placeholder).") ";
$result = $dbh->prepare($sql);
$result->execute($values);
$deleted = $result->rowCount();
if ($deleted>0) {
echo $deleted.' was deleted.';
}
Following is my PHP code which is only giving i =0 though in a loop I am incrementing the $i but it always return i as 0 and while loop is only working one time, though my query SELECT * FROM events WHERE DATE(event_date) < CURDATE() is returning 7 records when exectuing in phpmyadmin. Let me know what i am doing wrong here ?
Code -
<?php
include_once $_SERVER['DOCUMENT_ROOT'].'/app/'."config.php";
error_reporting(E_ALL);
if( $_POST['number'] == 'all' ) {
$eventArr = array();
$myarray = array();
$query = "SELECT * FROM events WHERE DATE(`event_date`) < CURDATE()";
$result = mysql_query($query);
$i =0;
while($row = mysql_fetch_assoc($result)) {
$eventArr[$i] = array('event_data'=> $row);
// Get image For an event
$event_id = $row['id'];
$query = "SELECT * FROM event_images WHERE event_id = $event_id ORDER BY `uploaded_date` DESC LIMIT 0,1";
$result = mysql_query($query);
$eventImgArr = array();
while($row = mysql_fetch_assoc($result)) {
$eventImgArr[] = $row;
}
$eventArr[$i]['event_image'] = $eventImgArr;
// Get venue details for the event
$venue_id = $row['venue_id'];
$eventVenArr = array();
$query = "SELECT * FROM `venues` WHERE id = $venue_id";
while($row = mysql_fetch_assoc($result)) {
$eventVenArr[] = $row;
}
$eventArr[$i]['venue_detail'] = $eventVenArr;
echo $i, " -- ";
$i++;
}
$myarray = array('response'=>'1','message'=>'Event data', 'data'=>$eventArr);
echo json_encode($myarray);
return;
}
You are re-using the $result variable for the other queries, which is destroying its value needed for the main loop.
P.S. Also, you're not actually executing the query for the venue details.