I'm trying to learn to work with server side database. I have a mysql database with tables of about 1000 rows. Using bootstrap grid with load, unload, edit and delete for each row, results slow, so i wan't to try server side.
I'm using the following code:
index.html
<html lang = "it">
<head>
<title>Datatable Server Side Processing with PHP</title>
<meta charset = "utf-8">
<!-- DataTables CSS library -->
<link rel="stylesheet" type="text/css" href="DataTables/datatables.min.css"/>
<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<!-- DataTables JS library -->
<script type="text/javascript" src="DataTables/datatables.min.js"></script>
<script>
$(document).ready(function(){
$('#memListTable').DataTable({
"processing": true,
"serverSide": true,
"ajax": "getData.php"
});
});
</script>
<style>
.container {padding: 20px;}
</style>
</head>
<body>
<div class = "container">
<table id="memListTable" class="display" style="width:100%">
<thead>
<tr>
<th>ID</th>
<th>Codice</th>
<th>Codice Fornitore</th>
<th>Ubicazione</th>
<th>Descrizione</th>
<th>Package</th>
<th>Quantità</th>
</tr>
</thead>
<tfoot>
<tr>
<th>ID</th>
<th>Codice</th>
<th>Codice Fornitore</th>
<th>Ubicazione</th>
<th>Descrizione</th>
<th>Package</th>
<th>Quantità</th>
</tr>
</tfoot>
</table>
</div>
</body>
</html>
getData.php
<?php
// Database connection info
$dbDetails = array(
'host' => 'localhost',
'user' => 'root',
'pass' => '',
'db' => 'company',
'port' => '3308' // aggiunto
);
// DB table to use
$table = 'maglab';
// Table's primary key
$primaryKey = 'id';
// Array of database columns which should be read and sent back to DataTables.
// The `db` parameter represents the column name in the database.
// The `dt` parameter represents the DataTables column identifier.
$columns = array(
array( 'db' => 'id', 'dt' => 0 ),
array( 'db' => 'codice', 'dt' => 1 ),
array( 'db' => 'cod_forn', 'dt' => 2 ),
array( 'db' => 'ubicazione', 'dt' => 3 ),
array( 'db' => 'descrizione', 'dt' => 4 ),
array( 'db' => 'package', 'dt' => 5 ),
array( 'db' => 'quantita', 'dt' => 6 )
);
// Include SQL query processing class
require( 'ssp.class.php' );
// Output data as json format
echo json_encode(
SSP::simple( $_GET, $dbDetails, $table, $primaryKey, $columns )
);
?>
ssp.class.php
<?php
/*
* Helper functions for building a DataTables server-side processing SQL query
*
* The static functions in this class are just helper functions to help build
* the SQL used in the DataTables demo server-side processing scripts. These
* functions obviously do not represent all that can be done with server-side
* processing, they are intentionally simple to show how it works. More complex
* server-side processing operations will likely require a custom script.
*
* See http://datatables.net/usage/server-side for full details on the server-
* side processing requirements of DataTables.
*
* #license MIT - http://datatables.net/license_mit
*/
// Please Remove below 4 lines as this is use in Datatatables test environment for your local or live environment please remove it or else it will not work
$file = $_SERVER['DOCUMENT_ROOT'].'/datatables/pdo.php';
if ( is_file( $file ) ) {
include( $file );
}
class SSP {
/**
* Create the data output array for the DataTables rows
*
* #param array $columns Column information array
* #param array $data Data from the SQL get
* #return array Formatted data in a row based format
*/
static function data_output ( $columns, $data )
{
$out = array();
for ( $i=0, $ien=count($data) ; $i<$ien ; $i++ ) {
$row = array();
for ( $j=0, $jen=count($columns) ; $j<$jen ; $j++ ) {
$column = $columns[$j];
// Is there a formatter?
if ( isset( $column['formatter'] ) ) {
if(empty($column['db'])){
$row[ $column['dt'] ] = $column['formatter']( $data[$i] );
}
else{
$row[ $column['dt'] ] = $column['formatter']( $data[$i][ $column['db'] ], $data[$i] );
}
}
else {
if(!empty($column['db'])){
$row[ $column['dt'] ] = $data[$i][ $columns[$j]['db'] ];
}
else{
$row[ $column['dt'] ] = "";
}
}
}
$out[] = $row;
}
return $out;
}
/**
* Database connection
*
* Obtain an PHP PDO connection from a connection details array
*
* #param array $conn SQL connection details. The array should have
* the following properties
* * host - host name
* * db - database name
* * user - user name
* * pass - user password
* #return resource PDO connection
*/
static function db ( $conn )
{
if ( is_array( $conn ) ) {
return self::sql_connect( $conn );
}
return $conn;
}
/**
* Paging
*
* Construct the LIMIT clause for server-side processing SQL query
*
* #param array $request Data sent to server by DataTables
* #param array $columns Column information array
* #return string SQL limit clause
*/
static function limit ( $request, $columns )
{
$limit = '';
if ( isset($request['start']) && $request['length'] != -1 ) {
$limit = "LIMIT ".intval($request['start']).", ".intval($request['length']);
}
return $limit;
}
/**
* Ordering
*
* Construct the ORDER BY clause for server-side processing SQL query
*
* #param array $request Data sent to server by DataTables
* #param array $columns Column information array
* #return string SQL order by clause
*/
static function order ( $request, $columns )
{
$order = '';
if ( isset($request['order']) && count($request['order']) ) {
$orderBy = array();
$dtColumns = self::pluck( $columns, 'dt' );
for ( $i=0, $ien=count($request['order']) ; $i<$ien ; $i++ ) {
// Convert the column index into the column data property
$columnIdx = intval($request['order'][$i]['column']);
$requestColumn = $request['columns'][$columnIdx];
$columnIdx = array_search( $requestColumn['data'], $dtColumns );
$column = $columns[ $columnIdx ];
if ( $requestColumn['orderable'] == 'true' ) {
$dir = $request['order'][$i]['dir'] === 'asc' ?
'ASC' :
'DESC';
$orderBy[] = '`'.$column['db'].'` '.$dir;
}
}
if ( count( $orderBy ) ) {
$order = 'ORDER BY '.implode(', ', $orderBy);
}
}
return $order;
}
/**
* Searching / Filtering
*
* Construct the WHERE clause for server-side processing SQL query.
*
* NOTE this does not match the built-in DataTables filtering which does it
* word by word on any field. It's possible to do here performance on large
* databases would be very poor
*
* #param array $request Data sent to server by DataTables
* #param array $columns Column information array
* #param array $bindings Array of values for PDO bindings, used in the
* sql_exec() function
* #return string SQL where clause
*/
static function filter ( $request, $columns, &$bindings )
{
$globalSearch = array();
$columnSearch = array();
$dtColumns = self::pluck( $columns, 'dt' );
if ( isset($request['search']) && $request['search']['value'] != '' ) {
$str = $request['search']['value'];
for ( $i=0, $ien=count($request['columns']) ; $i<$ien ; $i++ ) {
$requestColumn = $request['columns'][$i];
$columnIdx = array_search( $requestColumn['data'], $dtColumns );
$column = $columns[ $columnIdx ];
if ( $requestColumn['searchable'] == 'true' ) {
if(!empty($column['db'])){
$binding = self::bind( $bindings, '%'.$str.'%', PDO::PARAM_STR );
$globalSearch[] = "`".$column['db']."` LIKE ".$binding;
}
}
}
}
// Individual column filtering
if ( isset( $request['columns'] ) ) {
for ( $i=0, $ien=count($request['columns']) ; $i<$ien ; $i++ ) {
$requestColumn = $request['columns'][$i];
$columnIdx = array_search( $requestColumn['data'], $dtColumns );
$column = $columns[ $columnIdx ];
$str = $requestColumn['search']['value'];
if ( $requestColumn['searchable'] == 'true' &&
$str != '' ) {
if(!empty($column['db'])){
$binding = self::bind( $bindings, '%'.$str.'%', PDO::PARAM_STR );
$columnSearch[] = "`".$column['db']."` LIKE ".$binding;
}
}
}
}
// Combine the filters into a single string
$where = '';
if ( count( $globalSearch ) ) {
$where = '('.implode(' OR ', $globalSearch).')';
}
if ( count( $columnSearch ) ) {
$where = $where === '' ?
implode(' AND ', $columnSearch) :
$where .' AND '. implode(' AND ', $columnSearch);
}
if ( $where !== '' ) {
$where = 'WHERE '.$where;
}
return $where;
}
/**
* Perform the SQL queries needed for an server-side processing requested,
* utilising the helper functions of this class, limit(), order() and
* filter() among others. The returned array is ready to be encoded as JSON
* in response to an SSP request, or can be modified if needed before
* sending back to the client.
*
* #param array $request Data sent to server by DataTables
* #param array|PDO $conn PDO connection resource or connection parameters array
* #param string $table SQL table to query
* #param string $primaryKey Primary key of the table
* #param array $columns Column information array
* #return array Server-side processing response array
*/
static function simple ( $request, $conn, $table, $primaryKey, $columns )
{
$bindings = array();
$db = self::db( $conn );
// Build the SQL query string from the request
$limit = self::limit( $request, $columns );
$order = self::order( $request, $columns );
$where = self::filter( $request, $columns, $bindings );
// Main query to actually get the data
$data = self::sql_exec( $db, $bindings,
"SELECT `".implode("`, `", self::pluck($columns, 'db'))."`
FROM `$table`
$where
$order
$limit"
);
// Data set length after filtering
$resFilterLength = self::sql_exec( $db, $bindings,
"SELECT COUNT(`{$primaryKey}`)
FROM `$table`
$where"
);
$recordsFiltered = $resFilterLength[0][0];
// Total data set length
$resTotalLength = self::sql_exec( $db,
"SELECT COUNT(`{$primaryKey}`)
FROM `$table`"
);
$recordsTotal = $resTotalLength[0][0];
/*
* Output
*/
return array(
"draw" => isset ( $request['draw'] ) ?
intval( $request['draw'] ) :
0,
"recordsTotal" => intval( $recordsTotal ),
"recordsFiltered" => intval( $recordsFiltered ),
"data" => self::data_output( $columns, $data )
);
}
/**
* The difference between this method and the `simple` one, is that you can
* apply additional `where` conditions to the SQL queries. These can be in
* one of two forms:
*
* * 'Result condition' - This is applied to the result set, but not the
* overall paging information query - i.e. it will not effect the number
* of records that a user sees they can have access to. This should be
* used when you want apply a filtering condition that the user has sent.
* * 'All condition' - This is applied to all queries that are made and
* reduces the number of records that the user can access. This should be
* used in conditions where you don't want the user to ever have access to
* particular records (for example, restricting by a login id).
*
* #param array $request Data sent to server by DataTables
* #param array|PDO $conn PDO connection resource or connection parameters array
* #param string $table SQL table to query
* #param string $primaryKey Primary key of the table
* #param array $columns Column information array
* #param string $whereResult WHERE condition to apply to the result set
* #param string $whereAll WHERE condition to apply to all queries
* #return array Server-side processing response array
*/
static function complex ( $request, $conn, $table, $primaryKey, $columns, $whereResult=null, $whereAll=null )
{
$bindings = array();
$db = self::db( $conn );
$localWhereResult = array();
$localWhereAll = array();
$whereAllSql = '';
// Build the SQL query string from the request
$limit = self::limit( $request, $columns );
$order = self::order( $request, $columns );
$where = self::filter( $request, $columns, $bindings );
$whereResult = self::_flatten( $whereResult );
$whereAll = self::_flatten( $whereAll );
if ( $whereResult ) {
$where = $where ?
$where .' AND '.$whereResult :
'WHERE '.$whereResult;
}
if ( $whereAll ) {
$where = $where ?
$where .' AND '.$whereAll :
'WHERE '.$whereAll;
$whereAllSql = 'WHERE '.$whereAll;
}
// Main query to actually get the data
$data = self::sql_exec( $db, $bindings,
"SELECT `".implode("`, `", self::pluck($columns, 'db'))."`
FROM `$table`
$where
$order
$limit"
);
// Data set length after filtering
$resFilterLength = self::sql_exec( $db, $bindings,
"SELECT COUNT(`{$primaryKey}`)
FROM `$table`
$where"
);
$recordsFiltered = $resFilterLength[0][0];
// Total data set length
$resTotalLength = self::sql_exec( $db, $bindings,
"SELECT COUNT(`{$primaryKey}`)
FROM `$table` ".
$whereAllSql
);
$recordsTotal = $resTotalLength[0][0];
/*
* Output
*/
return array(
"draw" => isset ( $request['draw'] ) ?
intval( $request['draw'] ) :
0,
"recordsTotal" => intval( $recordsTotal ),
"recordsFiltered" => intval( $recordsFiltered ),
"data" => self::data_output( $columns, $data )
);
}
/**
* Connect to the database
*
* #param array $sql_details SQL server connection details array, with the
* properties:
* * host - host name
* * db - database name
* * user - user name
* * pass - user password
* #return resource Database connection handle
*/
static function sql_connect ( $sql_details )
{
try {
$db = #new PDO(
"mysql:host={$sql_details['host']};dbname={$sql_details['db']};port={$sql_details['port']}",
$sql_details['user'],
$sql_details['pass'],
array( PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION )
);
}
catch (PDOException $e) {
self::fatal(
"An error occurred while connecting to the database. ".
"The error reported by the server was: ".$e->getMessage()
);
}
return $db;
}
/**
* Execute an SQL query on the database
*
* #param resource $db Database handler
* #param array $bindings Array of PDO binding values from bind() to be
* used for safely escaping strings. Note that this can be given as the
* SQL query string if no bindings are required.
* #param string $sql SQL query to execute.
* #return array Result from the query (all rows)
*/
static function sql_exec ( $db, $bindings, $sql=null )
{
// Argument shifting
if ( $sql === null ) {
$sql = $bindings;
}
$stmt = $db->prepare( $sql );
//echo $sql;
// Bind parameters
if ( is_array( $bindings ) ) {
for ( $i=0, $ien=count($bindings) ; $i<$ien ; $i++ ) {
$binding = $bindings[$i];
$stmt->bindValue( $binding['key'], $binding['val'], $binding['type'] );
}
}
// Execute
try {
$stmt->execute();
}
catch (PDOException $e) {
self::fatal( "An SQL error occurred: ".$e->getMessage() );
}
// Return all
return $stmt->fetchAll( PDO::FETCH_BOTH );
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Internal methods
*/
/**
* Throw a fatal error.
*
* This writes out an error message in a JSON string which DataTables will
* see and show to the user in the browser.
*
* #param string $msg Message to send to the client
*/
static function fatal ( $msg )
{
echo json_encode( array(
"error" => $msg
) );
exit(0);
}
/**
* Create a PDO binding key which can be used for escaping variables safely
* when executing a query with sql_exec()
*
* #param array &$a Array of bindings
* #param * $val Value to bind
* #param int $type PDO field type
* #return string Bound key to be used in the SQL where this parameter
* would be used.
*/
static function bind ( &$a, $val, $type )
{
$key = ':binding_'.count( $a );
$a[] = array(
'key' => $key,
'val' => $val,
'type' => $type
);
return $key;
}
/**
* Pull a particular property from each assoc. array in a numeric array,
* returning and array of the property values from each item.
*
* #param array $a Array to get data from
* #param string $prop Property to read
* #return array Array of property values
*/
static function pluck ( $a, $prop )
{
$out = array();
for ( $i=0, $len=count($a) ; $i<$len ; $i++ ) {
if(empty($a[$i][$prop])){
continue;
}
//removing the $out array index confuses the filter method in doing proper binding,
//adding it ensures that the array data are mapped correctly
$out[$i] = $a[$i][$prop];
}
return $out;
}
/**
* Return a string from an array or a string
*
* #param array|string $a Array to join
* #param string $join Glue for the concatenation
* #return string Joined string
*/
static function _flatten ( $a, $join = ' AND ' )
{
if ( ! $a ) {
return '';
}
else if ( $a && is_array($a) ) {
return implode( $join, $a );
}
return $a;
}
}
?>
now running index.php i receive DataTables warning: table id=memListTable - Invalid JSON response On Firefox, doing Web Developer > Network > XHR i see the following Json file
{"draw":1,"recordsTotal":907,"recordsFiltered":907,"data":[["1","CONN 4 POLI"," prova","C4"," Connettore 4 poli maschio stampato ","conn","1865"],["2","PE140-VIPER17",null,"A2","Off Line Converter","SMD","12"],["3","0003-XU-FAN7382008XSOPCP","FAN7382MX ","A2","Driver di porta Half Bridge Gate Dvr ","SOP-8","10"],["4","0004-XQ-0A20040XNPSOT2BJ","BC847BLT1G ","A2","Transistor bipolari - BJT 100mA 50V NPN VBE min 580mV ","SOT23-3","100"],["5","PE140-SFH6106",null,"A2","Phototransistor out","SMD","7"],["6","0006-XQ-40A00k6XXNDPAKIG","STGB19NC60HDT4 ","A2","Transistori IGBT N Ch 600V 19A ","D2PAK-3","273"],["7","PE140-BZX84C10V",null,"A2","Diodo Zener 9.4-10.6V 250mW","SMD","100"],["8","PE140-BAT54S",null,"A2","Schottky 30V Dual BAT54","SOT-323","4"],["10","000A-XD-1A501K0XXSDO21RF","US2MA ","A2","Raddrizzatori HER SMA GPPN 1.5A 600V ","DO-214AC-2","120"],["11","PE140-MMBD914",null,"A2","Diodo 100V","SMD","10"]]}
the grid is empty due to the error message. I don't understand why the table as 907 rows, we can see it on Json "recordsTotal":907,"recordsFiltered":907 but the json have only 10 random rows
I started a web application in CI 3.0, everything working smooth, I got my pagination working, but there is a problem wich I cannot figure out...
For example, I have the following URL: localhost/statistics/api_based
When navigate, $query results are displayed, links are generated, OK.
But, when I navigate to page 2 for example, the URL will become:
localhost/statistics/dll_based/index/2 and page 3 will become localhost/statistics/api_based/index/3 , so therefore I am using segments.
Now the problem is the query that is generated:
SELECT * FROM `shield_api` ORDER BY `id` ASC limit 20 offset 2
offset 2 - is the page number 2, and it should be 20, if I am correct.
I am displaying 20 results per page, so first page is correctly showing results from 1 - 20, but then page 2 will display results from 2 - 21, so you get my point, it`s not OK...
Here is my controller:
function index($offset = 0) {
// Enable SSL?
maintain_ssl ( $this->config->item ( "ssl_enabled" ) );
// Redirect unauthenticated users to signin page
if (! $this->authentication->is_signed_in ()) {
redirect ( 'account/sign_in/?continue=' . urlencode ( base_url () . 'statistics/api_based' ) );
}
if ($this->authentication->is_signed_in ()) {
$data ['account'] = $this->account_model->get_by_id ( $this->session->userdata ( 'account_id' ) );
}
$per_page = 20;
$qry = "SELECT * FROM `shield_api` ORDER BY `id` ASC";
//$offset = ($this->uri->segment ( 4 ) != '' ? $this->uri->segment ( 4 ) : 0);
$config ['total_rows'] = $this->db->query ( $qry )->num_rows ();
$config ['per_page'] = $per_page;
$config ['uri_segment'] = 4;
$config ['base_url'] = base_url () . '/statistics/api_based/index';
$config ['use_page_numbers'] = TRUE;
$config ['page_query_string'] = FALSE;
$config ['full_tag_open'] = '<ul class="pagination">';
$config ['full_tag_close'] = '</ul>';
$config ['prev_link'] = '«';
$config ['prev_tag_open'] = '<li>';
$config ['prev_tag_close'] = '</li>';
$config ['next_link'] = '»';
$config ['next_tag_open'] = '<li>';
$config ['next_tag_close'] = '</li>';
$config ['cur_tag_open'] = '<li class="active"><a href="#">';
$config ['cur_tag_close'] = '</a></li>';
$config ['num_tag_open'] = '<li>';
$config ['num_tag_close'] = '</li>';
$config ["num_links"] = round ( $config ["total_rows"] / $config ["per_page"] );
$this->pagination->initialize ( $config );
$data ['pagination_links'] = $this->pagination->create_links ();
//$data ['per_page'] = $this->uri->segment ( 4 );
$data ['offset'] = $offset;
$qry .= " limit {$per_page} offset {$offset} ";
if ($data ['pagination_links'] != '') {
$data ['pagermessage'] = 'Showing ' . ((($this->pagination->cur_page - 1) * $this->pagination->per_page) + 1) . ' to ' . ($this->pagination->cur_page * $this->pagination->per_page) . ' results, of ' . $this->pagination->total_rows;
}
$data ['result'] = $this->db->query ( $qry )->result_array ();
$this->load->view ( 'statistics/api_based', isset ( $data ) ? $data : NULL );
}
Can someone point me to my problem ? Any help is apreciated.
You may have a misunderstanding of how LIMIT works.
Limit with one value sets the maximum number to be returned.
LIMIT 10
Will retrieve at most 10 rows, starting at the beginning of the results matching your query.
Limit with two values sets the start position (offset in rows, not pages) and the maximum number of rows to be returned.
LIMIT 20, 10
Will retrieve at most 10 rows, starting at row 20.
So, you'll need to modify your logic a bit here:
$start = max(0, ( $offset -1 ) * $per_page);
$qry .= ' LIMIT {$start}, {$per_page}';
I try to make query in Codeigniter via Active Records:
if (isset($data['where']['and'])) {
$this->db->where($data['where']['and']);
}
if (isset($data['where']['or'])) {
$this->db->or_where_in('idSpec', $data['where']['or']);
}
I want to get:
WHERE name = 1 AND (idSpec = 2 OR idSpec = 3 OR idSpec = 4);
But now I get:
WHERE name = 1 OR idSpec = 2 OR idSpec = 3 OR idSpec = 4;
Use below code.
if (isset($data['where']['and'])) {
$this->db->where($data['where']['and']);
}
if (isset($data['where']['or'])) {
$this->db->where("(idSpec = 2 OR idSpec = 3 OR idSpec = 4;)", NULL, FALSE);
}
I assume your $data['where']['or'] contains some ids.
This may help you.
if (isset($data['where']['or']))
{
$or_conditions='(idSpec ='.implode(' OR idSpec = ',$data['where']['or']).')';
$this->db->where($or_conditions);//if this produce error use bellow one
//$this->db->where($or_conditions,'',false);
}
This is the basic method to select data from database I'm using well for a long time..
/**
* Le wild function to make a life better.
* Doing abrakadabra
*
* #param $table
* #param bool $selector
* #param string $order
* #param bool $start
* #param bool $limit
* #param $return
*
* #return mixed
*/
public function _getCustomTableData($table, $selector = FALSE, $order = 'id DESC', $start = FALSE, $limit = FALSE, $return = FALSE, $group_by = FALSE)
{
$query = $return ? $this->db->select($return) : $this->db->select('*');
if ( $selector ) {
if ( isset($selector['mixed_selection']) && $selector['mixed_selection'] == TRUE ) {
$query = $this->db->where($selector['mixed_selection']);
} else {
foreach ( $selector as $select_array ):
$query = $this->db->where($select_array);
endforeach;
}
}
if ( $group_by ) {
$query = $this->db->group_by($group_by);
}
$query = $this->db->order_by($order);
if ( $start && $limit ) {
$query = $this->db->limit($limit, $start);
}
if ( ! $start && $limit ) {
$query = $this->db->limit($limit);
}
// proceed
$query = $this->db->get($table);
if ( $limit == TRUE && $limit == 1 ) {
$query = $query->row_array();
if ( $return ) {
return $query[$return];
} else {
return $query;
}
} else {
$query = $query->result_array();
return $query;
}
}
and query looks like:
$this->_getCustomTableData('table', array(array('selector' => '1', 'time >=' => time())), 'id DESC', FALSE, 1, 'id');
it's like:
SELECT 'id' FROM `table` WHERE `selector` = 1 AND `time` >= 1472582... ORDER BY id DESC LIMIT 1
or you can use "mixed selection"
$this->_getCustomTableData('table', array('mixed_selection' => 'selector = 1 AND time >= 1472582...'), 'id DESC', FALSE, 1, 'id');
and the result will be the same. I have wrote this method when I was beginner with CI and it helped me a lot :)
I am trying to pull data from MySQL and this supposed to show complete data but this is showing only one row. This is supposed to show all rows of users. I don’t know what I did wrong:
Here is the code:
function getCashoutRequests($uid, $limit) {
if (!empty( $limit )) {
$query = mysql_query( '' . 'SELECT * FROM cashouts WHERE uid = ' . $uid . ' ORDER BY id DESC LIMIT ' . $limit );
}
else {
$query = mysql_query( '' . 'SELECT * FROM cashouts WHERE uid = ' . $uid . ' ORDER BY id DESC' );
}
if (mysql_num_rows( $query )) {
if ($row = mysql_fetch_object( $query )) {
$row->id;
$amount = $row->amount;
$status = $row->status;
$client_notes = nl2br( $row->user_notes );
$admin_notes = nl2br( $row->admin_notes );
$request_date = $row->request_date;
$payment_date = $row->payment_date;
$fee = $row->fee;
$priority = $hid = $row->priority;
$method = $row->method;
if ($payment_date != '0000-00-00 00:00:00') {
$payment_date = date( 'd M, Y', strtotime( $payment_date ) );
}
$request_date = date( 'd M, Y', strtotime( $request_date ) );
$payHistory []= array( 'id' => $hid, 'cash' => $amount, 'status' => $status, 'method' => $method, 'client_notes' => $client_notes, 'admin_notes' => $admin_notes, 'date' => $request_date, 'payment_date' => $payment_date, 'fee' => $fee, 'priority' => $priority );
}
return $payHistory;
}
return false;
}
On this line you have if:
if ($row = mysql_fetch_object( $query )) {
If you use if that would only go to the first value since if simply tests a condition once. Instead try while like this:
while ($row = mysql_fetch_object( $query )) {
As explained in the PHP manual entry for while:
The meaning of a while statement is simple. It tells PHP to execute
the nested statement(s) repeatedly, as long as the while expression
evaluates to TRUE.
I want in template file can limit count of result, something like this :
file.tpl
{$box_count = 10}
{foreach $box}
.
.
.
{/foreach}
how can i handle and get this variables in php to limit result in database ?
example :
<?php
$smarty = new Smarty;
$count = ... //HOW CAN GET ?
$data = array();
$q = mysql_query( "SELECT * FROM `users` LIMIT 0,$count" );
while( $r = mysql_fetch_array( $q ) )
{
$data[] = $r;
}
$smarty->assign( 'box' , $data );
$smarty->dipslay( 'file.tpl' );
?>
note :
because this var just defined in tpl file, in getTemplateVars() not exists .
thanks
i solved this problem with registerObject :
<?php
$smarty = new Smarty;
class Test
{
public function setCount( $params , &$smarty )
{
$count = $params['count'];
$data = array();
$q = mysql_query( "SELECT * FROM `users` LIMIT 0,$count" );
while( $r = mysql_fetch_array( $q ) )
{
$data[] = $r;
}
$smarty->assign( 'box' , $data );
}
}
$S = new Test;
$smarty->registerObject( 'Test' , $S , array( 'setCount' ) )
$smarty->dipslay( 'file.tpl' );
?>
file.tpl :
{Test->setCount count="10"}
{foreach $box}
.
.
.
{/foreach}