So the app should read from database if condition is met and print on page in this format:
here are codes and i will post image of my output in the end
lib.php:
<?php
$db_name = "ispit_septembar";
$db_user = "root";
$db_host = "localhost";
$db_pass = "";
function vratiStudente($godina)
{
global $db_name,$db_user,$db_host,$db_pass;
$studenti = array();
$link = mysql_connect("$db_host","$db_user","$db_pass") or die ("Nije moguca konekcija");
mysql_select_db("$db_name",$link) or die ("Nepostojeca baza");
$sql = mysql_query("SELECT * from studenti where godina = '$godina'");
while ($row = mysql_fetch_array($sql) )
{
$indeks = $row["indeks"];
$imeiprezime = $row["imeiprezime"];
$godina = $row["godina"];
$studenti["indeks"] = $indeks;
$studenti[$indeks]["imeiprezime"] = $imeiprezime;
$studenti[$indeks]["godina"] = $godina;
}
return $studenti;
}
function daLiPostojiStudent($indeks)
{
global $db_name,$db_user,$db_host,$db_pass;
$link = mysql_connect("$db_host","$db_user","$db_pass") or die ("Nije moguca konekcija");
mysql_select_db("$db_name","$link") or die ("Nepostojeca baza");
$sql = mysql_query("SELECT * from studenti where indeks = '$indeks'");
$check = mysql_num_rows($sql);
if ($check >0 )
{
$postoji = "postoji";
}
else
{
$postoji = "ne postoji";
}
return $postoji;
}
function dodajStudenta($indeks,$ime,$godina)
{
global $db_name,$db_user,$db_host,$db_pass;
$link = mysql_connect("$db_host","$db_user","$db_pass") or die ("Nije moguca konekcija");
mysql_select_db("$db_name","$link") or die ("Nepostojeca baza");
$result = daLiPostojiStudent($indeks);
if ($result == "postoji")
{
$postoji = "Student sa tim brojem indeksa postoji";
return $postoji;
}
else
{
$sql = ("INSERT INTO studenti (indeks,imeprezime,godina)
VALUES ('$indeks','$ime','$godina' ");
mysql_query($sql);
return 1;
}
}
?>
strana1.php:`
<?php
include "lib.php";
include "Smarty/libs/Smarty.class.php";
$dodaj1 = "strana2.php?godina=1";
$dodaj2 = "strana2.php?godina=2";
$dodaj3 = "strana2.php?godina=3";
$studenti1 = vratiStudente(1);
echo ($studenti1["indeks"]);
$studenti2 = vratiStudente(2);
$studenti3 = vratiStudente(3);
$smarty= new Smarty();
$smarty->assign("dodaj1",$dodaj1);
$smarty->assign("dodaj2",$dodaj2);
$smarty->assign("dodaj3",$dodaj3);
$smarty->assign("studenti1",$studenti1);
$smarty->assign("studenti2",$studenti2);
$smarty->assign("studenti3",$studenti3);
$smarty->display("strana1.tpl");
?>
strana1.tpl
<html>
<head>
</head>
<body>
Godina: 1 <a href ={$dodaj1}>Dodaj</a>
<hr>
<table>
<tr>
<th>Indeks</th>
<th>Ime i Prezime </th>
</tr>
{foreach name="studenti1loop" item=student key=indeks from=$studenti1}
<tr>
<td> {$indeks} </td>
<td> {$student.imeiprezime}</td>
<td>{$student.godina}</td>
</tr>
{/foreach}
</table>
{* druga godina*}
Godina: 2 <a href ={$dodaj2}>Dodaj</a>
<hr>
<table>
<tr>
<th>Indeks</th>
<th>Ime i Prezime </th>
</tr>
{foreach name="studenti2loop" item=student from =$studenti2}
<tr>
<td> {$indeks} </td>
<td> {$student.imeiprezime}</td>
<td>{$student.godina}</td>
</tr>
{/foreach}
</table>
{* treca godina*}
Godina: 3 <a href ={$dodaj3}>Dodaj</a>
<hr>
<table>
<tr>
<th>Indeks</th>
<th>Ime i Prezime </th>
</tr>
{foreach name="studenti2loop" item=student from=$studenti3}
<tr>
<td> {$indeks} </td>
<td> {$student.imeiprezime}</td>
<td>{$student.godina}</td>
</tr>
{/foreach}
</table>
</body>
this is my_sql base structure:
and my output (Wrong one):
and now, questions:
I can't figure out why first member of frist array ($studenty1) as attributes index,imeiprezime and godina has indeks,3,3 - it should be 12345,dusan skoric, 1.
And second question, why is last indeks attribute from last member of first array used as ideks attribute for every member of next two arrays(Studenti2,studenti3)
ok, i've solved my first question:
line studenti["indeks"] = $indeks in lib.php was making problems, but still cant find answer to second question
Related
I have a table and each , I want to select a data from the same table in my database.
For example, first <td> is first name, then the second <td> is phone number.
I got the command, but only the first command is showing output.
This is my php codes to open and connect to the database :
<?php
include("./inc/db_connect.php");
$conn = OpenCon();
?>
This is the php codes for the table including <th> and <td> :
<div class="layer55">
<h3>
<table class="flat-table">
<tbody>
<tr>
<th>
<?php
$sql = "SELECT * FROM sharp_emp WHERE employee_id = 'AA170336'";
if ($result = $conn->query($sql)) {
if ($result->num_rows > 0) {
echo "Name";
}
}
?>
</th>
<th>
<?php
$sql = "SELECT * FROM sharp_emp WHERE employee_id = 'AA170336'";
if ($result = $conn->query($sql)) {
if ($result->num_rows > 0) {
echo "Phone Number";
}
}
?>
</th>
</tr>
<tr>
<td>
<?php
$sql = "SELECT first_name FROM sharp_emp WHERE employee_id = 'AA170336'";
while ($row = $result->fetch_array()) {
echo "" . $row['first_name'] . "";
}
?>
</td>
<td>
<?php
$sql = "SELECT phone FROM sharp_emp WHERE employee_id = 'AA170336'";
while ($row = $result->fetch_array()) {
echo "" . $row['phone'] . "";
}
?>
</td>
</tr>
</tbody>
</table>
</h3>
</div>
This is the php codes for db_connect.php :
<?php
function OpenCon()
{
$dbhost = "localhost";
$dbuser = // Hidden;
$dbpass = // Hidden;
$db = "sharp_db";
$conn = new mysqli($dbhost, $dbuser, $dbpass,$db) or die("Connect failed: %s\n". $conn -> error);
return $conn;
}
function CloseCon($conn)
{
$conn -> close();
}
?>
The expected output :
|----------|----------|
|Name |Phone Number|
|----------|----------|
|John |179898765 |
The current output :
|----------|----------|
|Name |Phone Number|
|----------|----------|
|John |Null (empty) |
You are running the same query multiple times, overwriting the $result variable for no reason, having useless $sql for the later 2 fetch without using them, and fetching a single $result twice by mistake.
So there are multiple concept problem with your code. I think your current code is something equivalant to this:
<div class="layer55">
<h3>
<table class="flat-table">
<tbody>
<tr>
<?php
$sql = "SELECT * FROM sharp_emp WHERE employee_id = 'AA170336'";
if ($result = $conn->query($sql)) {
if ($result->num_rows > 0) {
?>
<th>Name</th>
<th>Phone Number</th>
<?php } else { ?>
<th></th>
<th></th>
<?php } ?>
<?php } ?>
</tr>
<tr>
<?php if ($row = $result->fetch_array()) { ?>
<td><?php echo "" . $row['first_name'] . ""; ?></td>
<td><?php echo "" . $row['phone'] . ""; ?></td>
<?php } else { ?>
<td></td>
<td></td>
<?php } ?>
</tr>
</tbody>
</table>
</h3>
</div>
But frankly, it makes no sense to me to print an empty table when there is no result. So what you need is probably something like this.
<?php
$sql = "SELECT * FROM sharp_emp WHERE employee_id = 'AA170336'";
if (
($result = $conn->query($sql))
&& ($result->num_rows > 0)
&& ($row = $result->fetch_array())
):
?>
<div class="layer55">
<h3>
<table class="flat-table">
<tbody>
<tr>
<th>Name</th>
<th>Phone Number</th>
</tr>
<tr>
<td><?php echo $row['first_name']; ?></td>
<td><?php echo $row['phone']; ?></td>
</tr>
</tbody>
</table>
</h3>
</div>
<?php endif; ?>
I have this report which filters data from 5 tables but it is very slow takes around 10 seconds. I tried using index on some columns but it did not help.
Basically the first query is the master and the others are for filtering it if the other queries condition met then it will skip it.
this is the script:
<div class="col-md-12">
<h3>List of Outstandings</h3>
<table class="table table-condensed table-bordered table-hover small">
<thead>
<tr>
<th >#</th>
<th>PR #</th>
<th>PR Type</th>
<th>Description</th>
<th>Dep.</th>
<th>Date</th>
<th>Requester</th>
<th>Assigned to</th>
</tr>
</thead>
<tbody>
<?php
$chkk = 0;
$sql = "SELECT * FROM msr WHERE Status ='Approved' ";
$result6 = $connn->query($sql);
if ($result6->num_rows > 0) {
$vo = 1;
while ($row0 = $result6->fetch_assoc()) {
$chkk = 0;
$MSRID = $row0["MSRID"];
$MSRType = $row0["MSRType"];
$result4 = "SELECT owner FROM tracking WHERE MSRID='$MSRID' ";
$MyRow4 = $connn->query($result4);
$row4 = $MyRow4->fetch_assoc();
$actionBy = $row4["owner"];
$resultusr = "SELECT RFQID FROM rfq WHERE MSRID='$MSRID' AND NOPO='No' ";
$MyRowusr = $connn->query($resultusr);
$rowusr = $MyRowusr->fetch_assoc();
$rfqcount = mysqli_num_rows($MyRowusr);
if ($rfqcount > 0) {
$chkk = 1;
}
$resultusr4 = "SELECT POID FROM po WHERE MSRID='$MSRID' ";
$MyRowusr4 = $connn->query($resultusr4);
$rowusr4 = $MyRowusr4->fetch_assoc();
$rfqcount4 = mysqli_num_rows($MyRowusr4);
if ($rfqcount4 > 0) {
$chkk = 1;
}
$resultusr1 = "SELECT MSRID FROM contract WHERE MSRID='$MSRID' ";
$MyRowusr1 = $connn->query($resultusr1);
$rowusr1 = $MyRowusr1->fetch_assoc();
$rfqcount1 = mysqli_num_rows($MyRowusr1);
if ($rfqcount1 > 0) {
$chkk = 1;
}
if ($chkk == 1) {
continue;
}
?>
<tr>
<td>
<?php echo $vo; ?>
</td>
<td>
<?php echo $row0["MSRID"]; ?>
</td>
<td>
<?php echo $row0["MSRType"]; ?>
</td>
<td>
<?php echo $row0["purposeofbuying"]; ?>
</td>
<td>
<?php echo depName($row0["DepRequester"]); ?>
</td>
<td>
<?php echo $row0["RequestDate"]; ?>
</td>
<td>
<?php echo reqName($row0["RequestPer"]); ?>
</td>
<td>
<?php echo reqName($actionBy); ?>
</td>
</tr>
<?php
$vo++;
}
}
?>
</tbody>
</table>
</div>
</div>
You can use subquery method instead of looping.
Example:
$sql = "SELECT *,
( SELECT owner
FROM tracking
WHERE tracking.MSRID= msr.MSRID
) AS _owner,
( SELECT RFQID
FROM rfq
WHERE rfq.MSRID= msr.MSRID
AND rfq.NOPO='No'
) AS _RFQID
FROM msr
WHERE rfq.Status ='Approved'";
Here's a screenshot of the page that I want to put a pagination Below is my code and I want to create a simple pagination. I tried some examples available in this site but unfortunately it doesn't work for me or I might have missed something in the code.
<?php
session_start();
$server = 'localhost';
$user = 'root';
$pass = 'root';
$connect = mysql_connect($server,$user,$pass)
or die(mysql_error());
$selectdb = mysql_select_db('des')
or die(mysql_error());
?>
<form method="post" name="action_form" action="admin2.php">
<div id="gallery1" class="lbGallery">
<table class="table" width="100%" cellpadding="10">
<tbody>
<?php
$allRecords = mysql_query('select * from cms ORDER BY id DESC limit 4');
if(is_resource($allRecords))
{
while($row = mysql_fetch_assoc($allRecords))
{
?>
<tr><ul>
<td width="30%"><li style="list-style:none"><a href="uploads/<?php echo $row['image'];?>"/><img src="uploads/<?php echo $row['image'];?>"/></li></td>
<td style="float:left; font-size:16px"><?php echo $row['name']; ?></td>
</ul>
</tr>
<?php
}
}
?>
</tbody>
</table>
</div>
</form>
Try this. What is does is:
create a contant $amount en a variable $offset
Create a link (next) with which sends the value of $offset back to the script
Catch the value in $_GET['offset'];
Add the value of $amount to $offset to create a new offset.
Run MySQL statement again with the new values for LIMIT
I didn't actualy test this code for typo's, but you'll get the general idea. Hope this is of any help.
(Best to use the new mysqli statement by te way).
<?php
$amount = 4;
if (!empty($_GET['offset']))
{
$offset = $_GET['offset'] + $amount;
}
else
{
$offset = 1;
}
$allRecords = mysql_query('select * from cms ORDER BY id DESC limit $amount,$offset');
if(is_resource($allRecords))
{
while($row = mysql_fetch_assoc($allRecords))
{
?>
<tr><ul>
<td width="30%"><li style="list-style:none"><a href="uploads/<?php echo $row['image'];?>"/><img src="uploads/<?php echo $row['image'];?>"/></li></td>
<td style="float:left; font-size:16px"><?php echo $row['name']; ?></td>
</ul>
</tr>
<tr>
<td colspan="2">
Next
</td>
</tr>
<?php
}
}
?>
I want to delete a table row from my database with MySQL and PHP. I have searched through my code and I can't figure out what I'm doing wrong. I think I am close to getting it, probably something simple that I'm not realizing.
If I hover over the delete link there is a link showing with the correct ID number of the row to delete. But if I click it, it isn't working. It just refreshes the screen.
This is my code for index.php:
<!-- Table -->
<form action="index.php" method="get" id="dispatch">
<div class="col-md-8 column">
<fieldset>
<legend>Incident Board (Incidents in red are active)</legend>
<div class="scroll-bar">
<table>
<thead>
<tr>
<th>Incident #</th>
<th>Town</th>
<th>Location</th>
<th>Incident Type</th>
<th>Time/Date</th>
<th>Admin</th>
<th>Delete Entry</th>
</tr>
</thead>
<tbody>
<?php
if( isset($_POST['town']) )
{
$town = $_POST['town'];
}
if( isset($_POST['location']) )
{
$location = $_POST['location'];
}
if( isset($_POST['incident_type']) )
{
$incident_type= $_POST['incident_type'];
}
if( isset($_POST['time_date']) )
{
$time_date= $_POST['time_date'];
}
if( isset($_POST['admin']) )
{
$admin = $_POST['admin'];
}
if( isset($_POST['id']) )
{
$id = $_POST['id'];
}
$db = mysqli_connect('localhost','root','') or die("Database error");
mysqli_select_db($db, 'cad');
$result= mysqli_query($db, "SELECT * FROM `cad` ORDER BY `time_date` DESC LIMIT 20");
while($row = mysqli_fetch_array($result))
{
$town = $row['town'];
$location = $row['location'];
$incident_type = $row['incident_type'];
$time_date = $row['time_date'];
$admin = $row['admin'];
$id = $row['id'];
echo "
<tr>
<td class=\"id-center\">
".$id."
</td>
<td >
".$town."
</td>
<td>
".$location."
</td>
<td >
".$incident_type."
</td>
<td >
".$time_date."
</td>
<td >
".$admin."
</td>
<td>
<span class=\"glyphicon glyphicon-trash\"></span>
</td>
</tr>";
}
mysqli_close($db);
?>
</tbody>
</table>
</div>
</fieldset>
</div>
</form>
<!-- End -->
This is my delete.php code:
<?php
$username = "root";
$password = "";
$hostname = "localhost";
$dbhandle = mysql_connect($hostname, $username, $password) or die("Could not connect to database");
$selected = mysql_select_db("cad", $dbhandle);
mysql_query("DELETE FROM cad WHERE id = ".$_GET['id']."");
header('location: index.php');
?>
mysql is deprecated, instead of this use mysqli
<?php
$username = "root";
$password = "";
$hostname = "localhost";
$con=mysqli_connect($hostname, $username, $password,"cad");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
// Perform queries
mysqli_query($con,"DELETE FROM cad WHERE id = ".$_GET['id']."");
mysqli_close($con);
?>
I am trying to call function ProdTotal to get the total quantity order and total amount ordered for a product and load it in the table in the Display Function. I am getting the error: Call to undefined function ProdTotal();
<?php
Class CarsClass {
private $user = 'php06';
private $pwd = 'php06';
private $dbConn;
function __construct($db='classicmodels') {
//Create connection to MySQL database requested, if blank just connect up.
$this->dbConn = new mysqli('localhost', $this->user, $this->pwd, $db);
if (mysqli_connect_errno()) {
echo 'Error: Could not connect to database. Please try again later.';
exit;
}
$query = "select count(*) as 'custcount' from customers";
$result = $this->dbConn->query($query);
$row = $result->fetch_assoc();
$custCount = $row['custcount'];
print "Connected to DB $db as user $this->user<br><br> Number of Rows $custCount<br><br>";
}
function __destruct(){
mysqli_close();
Print "DB closed by user <br><br>";
}
function header(){
echo "Midterm Exam Script 2 Header<br><br>";
}
function display(){
$totqty = 0;
$totamt = 0;
//get row from WB_Resident Table
$query = "select productCode,productName,productDescription,quantityInStock,buyprice,MSRP from products";
$result = $this->dbConn->query($query);
?>
<table id="midterm2">
<tr>
<th colspan="13">Product Database Table</th>
</tr>
<tr>
<th width="2%">productCode</th>
<th width="10%">productName</th>
<th width="10%">productDescription</th>
<th width="10%">quantity in stock</th>
<th width="10%">buyPrice</th>
<th width="2%">MSRP</th>
<th width="10%">Total Qty Ordered</th>
<th width="10%">Total $ Ordered</th>
</tr>
<?php
while($row = $result->fetch_assoc()):
$producta = $row["productCode"];
ProdTotal($producta);
?>
<tr>
<td>
<?php echo $row["productCode"]; ?>
</td>
<td>
<?php echo $row["productName"];?>
</td>
<td>
<?php echo $row["productDescription"]; ?>
</td>
<td>
<?php echo $row["Qty In Stock"]; ?>
</td>
<td>
<?php echo $row["Buy Price"]; ?>
</td>
<td>
<?php echo $row["MSRP"]; ?>
</td>
<td>
<?php echo $totqty; ?>
</td>
<td>
<?php echo $totamt; ?>
</td>
</tr>
<?php
endwhile;
?>
</table>
<?php
}
function footer(){
echo "Midterm Exam Script 3 Footer<br><br>";
}
function ProdTotal($product){
echo "product code entered = $product <br><br>";
$query = "select RTRIM(productCode) as productt, quantityOrdered, priceEach from orderdetails order by productt";
$result = $this->dbConn->query($query);
while($row = $result->fetch_assoc()){
if ($row["productt"] == $product){
echo $row;
$total = $row["quantityOrdered"] * $row["priceEach"];
$totqty = $totqty + $row["quantityOrdered"];
$totamt = $totamt + $total;
echo totqty;
echo totamt;
return array($totqty, $totamt);
}
}
}
}
?>
This script is executed to call class.
<html>
<head>
<title>Midterm2 Script 3</title>
<link rel="stylesheet" type="text/css" href="midterm2.css" />
</head>
<body>
<?php
require 'CarsClass3a.php';
$obj1= new CarsClass('classicmodels');
$obj1->header();
$obj1->display();
$obj1->footer();
?>
</body>
</html>
In display(), change the call to ProdTotal() to
list($totqty, $totamt) = $this->ProdTotal($producta);