Give argument php function to show database results in another file - php

I have this php code to connect database it works fine.
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "cv";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
mysqli_set_charset($conn,"utf8");
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT * FROM services";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo "id: " . $row["id"]. " - Name: " . $row["service_name"]. " " . $row["service_desc"]. "<br>";
}
} else {
echo "0 results";
}
$conn->close();
My question is: how to create function getServices() and give argument to show this results in another php file using foreach or while, like this:
<?php foreach ($results as $key=>$result) : ?>
<?php echo $result['service_name']; ?>
<?php endforeach; ?>

Okay. So you have to do the following things:
db.php :
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "cv";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
mysqli_set_charset($conn,"utf8");
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
function yourFunctionName() {
$sql = "SELECT * FROM services";
$result = $conn->query($sql);
return $result;
}
$conn->close();
otherfile.php :
<?php
include 'db.php';
$data = yourFunctionName();
if ($data->num_rows > 0) {
// output data of each row
while($row = $data->fetch_assoc()) {
echo "id: " . $row["id"]. " - Name: " . $row["service_name"]. " " . $row["service_desc"]. "<br>";
}
} else {
echo "0 results";
}
?>
Hope this works, haven't tested yet.

Related

How can fetch a variable in sql to php according to post id? [duplicate]

I am getting an error "Fatal error: Call to undefined function fetch_assoc()". Can you please advise on how I should proceed?
The code is mentioned below
$servername = "localhost";
$username = "s";
$password = "j";
$conn = new mysqli($servername, $username, $password);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
echo "Connected successfully";
$sql = "select idnew_table, new_tablecol from new_schema.new_table;";
$result = $conn->query($sql);
$r = count($result);
if ($result['num_rows'] != 10) {
while($row = $result[fetch_assoc()]){
echo "id: " . $row["idnew_table"]. " - Name: " . $row["new_tablecol"];
}
} else {
echo "0 results";
}
$conn->close();
This line:
while($row = $result[fetch_assoc()]){
should be:
while($row = $result -> fetch_assoc()){

Get information from database

When I click on artikle It needs to diretct me to page.php where I display whole article.
Problem is im not sure how to with $_GET superglobal var properly take information. I have to get ID with $_GET.
I already have included database in my index.php where I displayed several articles.
Im sending id like this:
echo '<a href="clanak.php? class="form-field-textual" id='.$row['id'].'">';
//article.php
<?php
$servername = "localhost:3306";
$user = "root";
$pass = "";
$dbo = "projekt";
// Create connection
$conn = new mysqli($servername, $user, $pass, $dbo);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT * FROM projekt";
if ($conn->query($sql)===TRUE) {
$specID=$conn->insert_id;
echo "id: " . $row["id"]. " - Name: " .
$row["kategorija"]. " " . $row["naslov"]. "<br>";
} else {
echo "0 results";
}
$conn->close();
?>
$row_id = $row['id'];
echo 'some text';
<?php
$servername = "localhost:3306";
$user = "root";
$pass = "";
$dbo = "projekt";
// Create connection
$conn = new mysqli($servername, $user, $pass, $dbo);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$id = isset($_GET['id']) ? (int)$_GET['id'] : '';
$sql = "SELECT * FROM projekt WHERE id = $id";
if ($conn->query($sql)===TRUE) {
$specID=$conn->insert_id;
echo "id: " . $row["id"]. " - Name: " .
$row["kategorija"]. " " . $row["naslov"]. "<br>";
} else {
echo "0 results";
}
$conn->close();

Can't echo from database to form

So I want to echo a specific value from my database, but it doesn't wok. I'd like to echo that value into a text form something like this:
<h6 class="brand-before" align="center"><small>Konyhakész fa</small></h6><br>
<input type="text" name="konyha" size="18" align="center" value="<?php echo $konyha; ?>" />
And this is how I connect to MySQL:
<?php
mysql_connect("localhost", "koristuzep", "***") or die("Kapcsolódás az adatbázishoz sikertelen.");
mysql_select_db("koristuzep")or die("Kapcsolódás az adatbázishoz sikertelen.");
$konyha = mysql_query("SELECT * FROM $arak WHERE ID=3")
?>
you should fetch the results first from $konyha as given in this example
<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT id, firstname, lastname FROM MyGuests";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo "id: " . $row["id"]. " - Name: " . $row["firstname"]. " " .$row["lastname"]. "<br>";
}
} else {
echo "0 results";
}
$conn->close();
?>

PHP select data from database

<?php
$servername = "localhost";
$username = "root";
$password = "william";
$dbname = "camping";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT fnavn,enavn,epost,tlf FROM knr ";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo "id: " . $row["fnavn"]. " - Name: " . $row["enavn"]. " " . $row["epost"]. "ire: " . $row["tlf"]."<br>";
}
} else {
echo "0 results";
}
$conn->close();
?>
Tried it, and it doesnt work, anyone who knows why? It's something wrong with the second if statement I think
You would need to join the tables:
SELECT * FROM produkt
LEFT JOIN produkttype ON (produkt.ptype = producttype.ptype)
WHERE utleid="No"

CONCAT function in MySQL using PHP Undefined Variable

I need help on how to do this correctly. I need to execute this command:
SELECT concat(branchname, -->, itemtype, '(, quantity, ')') from monitoring
order by itemtype;
the syntax works in MySQL console. However, im having trouble with implementing it on php. I always get
"Undefined index: branchname"
"Undefined index: itemtype"
"Undefined index: quantity"
using this code:
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "dex_test";
// Create connection
$conn = mysqli_connect($servername, $username, $password, $dbname);
// Check connection
if (!$conn) {
die("Connection failed: " . mysqli_connect_error());
}
$sql = "SELECT concat(branchname,itemtype,quantity) from monitoring order by itemtype";
$result = mysqli_query($conn, $sql);
if (mysqli_num_rows($result) > 0) {
// output data of each row
while($row = mysqli_fetch_assoc($result)) {
echo " " . $row["branchname"]. " " . $row["itemtype"]. " ".$row["quantity"]. "<br>";
}
} else {
echo "0 results";
}
mysqli_close($conn);
The error says it's in this line
echo " " . $row["branchname"]. " " . $row["itemtype"]. " ".$row["quantity"]. "<br>";
Im confused because I basically ran the same code that worked that lets me see the itemtype in the table:
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "dex_test";
// Create connection
$conn = mysqli_connect($servername, $username, $password, $dbname);
// Check connection
if (!$conn) {
die("Connection failed: " . mysqli_connect_error());
}
$sql = "SELECT itemtype FROM monitoring";
$result = mysqli_query($conn, $sql);
if (mysqli_num_rows($result) > 0) {
// output data of each row
while($row = mysqli_fetch_assoc($result)) {
echo "itemtype: " . $row["itemtype"]. "<br>";
}
} else {
echo "0 results";
}
mysqli_close($conn);
Help anyone?
It seems your query needs update
"SELECT concat(branchname,itemtype,quantity) from monitoring order by itemtype";
It should be
"SELECT branchname,itemtype,quantity from monitoring order by itemtype";
I have posted this answer in reference of how you were calling your fields in while loop
echo " " . $row["branchname"]. " " . $row["itemtype"]. " ".$row["quantity"]. "<br>";
and if you need to show the concat value within one field than it should be something like
$sql = "SELECT concat(branchname,' ',itemtype,' ',quantity) as branch from monitoring order by itemtype";
$result = mysqli_query($conn, $sql);
if (mysqli_num_rows($result) > 0) {
// output data of each row
while($row = mysqli_fetch_assoc($result)) {
echo $row["branch"]."<br>";
}
} else {
echo "0 results";
}
Just define the alias for the concatenated columns. Use this -
SELECT concat(branchname,itemtype,quantity) as branchname from monitoring order by itemtype
Or if you want them seperately then -
SELECT branchname, itemtype, quantityfrom monitoring order by itemtype

Categories