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Can I mix MySQL APIs in PHP?
(4 answers)
Closed 6 years ago.
I am currently trying to output a the results of a MySQL table in PHP. I have a general understanding of web based programming but not enough to debug my code. I know the SQL is good, and the database is linked to my site it's just a matter of making it post to a table. I will post the code and would appreciate some help:
<?php
$sql = "SELECT player_name AS 'Name',
position AS 'Position',
team AS 'Team',
opp AS 'Opponent'
FROM `dbname`
WHERE position = 'QB'";
$stmt = $db->query($sql);
if($stmt-> num_rows > 0) {
echo "<table class='table'>";
echo "<thead class='thead-inverse'>";
echo "<tr><th>Name</th><th>Position</th><th>Team</th><th>Opponent</th>";
echo "</thead>";
echo "<tbody>";
while($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
echo "<tr><td>";
echo $row['Name'];
echo "</td><td>";
echo $row['Position'];
echo "</td><td>";
echo $row['Team'];
echo "</td><td>";
echo $row['Opponent'];
echo "</td></tr>";
}
echo "</tbody>";
echo "</table>";
}
else {
echo "No Results";
}
All that I get from this is a no results output.
You forgot to close the query with a double quote.
<?php
$sql = "SELECT player_name AS 'Name',
position AS 'Position',
team AS 'Team',
opp AS 'Opponent'
FROM `dbname`
WHERE position = 'QB'";
$stmt = $db->query($sql);
$stmt -> execute();
if($stmt-> num_rows > 0) {
echo "<table class='table'>";
echo "<thead class='thead-inverse'>";
echo "<tr><th>Name</th><th>Position</th><th>Team</th><th>Opponent</th>";
echo "</thead>";
echo "<tbody>";
while($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
echo "<tr><td>";
echo $row['Name'];
echo "</td><td>";
echo $row['Position'];
echo "</td><td>";
echo $row['Team'];
echo "</td><td>";
echo $row['Opponent'];
echo "</td></tr>";
}
echo "</tbody>";
echo "</table>";
}
else {
echo "No Results";
}
Add $stmt -> execute();
You can also use $stmt -> store_result(); after the execute part
Related
New to PDO and I have a PDO connection script which I am requiring at the top but this is what I have to try and just display the database that is made of up 4 employees and their birthdays. Whenever I run it, I get nothing. Am I at least in the right ballpark here?
<?php
require "pdoconnect.php";
try{
$stmt = $conn->prepare("SELECT bid, bname, bday FROM birthday");
$stmt->execute();
# setting the fetch mode
$result = $stmt->fetchAll();
if( ! $result){
print('No Records Found');
}
else{
echo "<table border='1' align='center' cellpadding='5px' cellspacing='2px'>";
//while($row = $stmt->fetch())
echo "<tr><th>Bid</th><th>Name</th><th>Birthdaay</th><th colspan='2'></th></tr>";
foreach($result as $row){
echo "<tr>";
echo "<td>";
echo $row['bid'];
echo "</td>";
echo "<td>";
echo $row['bname'];
echo "</td>";
echo "<td>";
echo $row['bday'];
echo "</td>";
}
echo "</table>";
}
}
catch(PDOException $e){
echo "Error: " . $e->getMessage();
}
$conn = null;
echo "</table>";
?>
I am currently working on a PHP and SQLite application. It does have HTML for the webpages being created. I am currently using PDO to connect the database to my online server. When I get to the webpage that allows me to type in what I am searching for then it will display what I have found in the echo statements below. I want to be able to have just the item name, that acts as a hyperlink; when it is clicked on it will go to another webpage (I believe) that will display the item's name, amount, and a short description. Is there a way to use PHP for this action or should I go with the HTML tagging?
if($_POST && isset($_POST['search'])) {
echo "<br>\n";
$query = $mysql->prepare('SELECT * FROM Items WHERE Name = :partname');
$subst = array ('partname' => $_POST['search']);
$query->execute($subst);
echo "<TABLE>";
echo "<tr>";
echo "<td>Name</td>";
echo "<td>Amount</td>";
echo "<td>Detail</td>";
echo "</tr>";
while ($row = $query->fetch()) {
//print_r($row);
echo "<tr>";
echo "<td>$row[Name]</td>";
echo "<td>$row[Amount]</td>";
echo "<td>$row[Detail]</td>";
echo "</tr>";
}
echo "</TABLE>";
} else echo "Item searched for was not found.";
from what i understand
if($_POST && isset($_POST['search'])) {
echo "<br>\n";
$query = $mysql->prepare('SELECT * FROM Items WHERE Name = :partname');
$subst = array ('partname' => $_POST['search']);
$query->execute($subst);
echo "<TABLE>";
echo "<tr>";
echo "<td>Name</td>";
echo "</tr>";
while ($row = $query->fetch()) {
//print_r($row);
$name = $row['Name'];
echo "<tr>";
echo "<td><a href='details.php?name={$name}'>{$name}</a></td>";
echo "</tr>";
}
echo "</TABLE>";
} else echo "Item searched for was not found.";
To use Associative Arrays within double quotes, you need to use curly braces:
echo "<td>{$row['Name']}</td><td>{$row['Amount']}</td><td>{$row['Detail']}</td>";
I've made a script for a search mysql table, and instead of one table with more rows, he return me on results page one table for each person.
This is my results code by id from the search script. and returns table for each person
$id = $_GET['id'];
$sql = "select * from wp_certificari WHERE id = '{$id}'";
$rst = mysql_query($sql);
while($a_row = mysql_fetch_assoc($rst)) {
echo "<center>\n";
echo "<b>Detalii Certificat:</b>";
echo "<table border='1'>";
echo"<thead>";
echo "<th>Denumire certificare</th>";
echo "<th>Serie si numar certificare</th>";
echo "<th>Data certificarii</th>";
echo "<th>Valabilitate certificare</th>";
echo "<th>Sector Financiar</th></tr>";
echo"</thead>";
echo "<td class='lalign'>{$a_row['nume']}</td>" ;
echo "<td class='lalign'>{$a_row['serie_numar']}</td>" ;
echo "<td class='lalign'>{$a_row['data']}</td>" ;
echo "<td class='lalign'>{$a_row['valabilitate']}</td>" ;
echo "<td class='lalign'>{$a_row['sector_financiar']}</td></tr>" ;
echo"</table>";
echo "</center>\n";}
You need to write your table and table head html outside your while loop Add mysql_num_rows to check empty result and add mysql_real_escape_string to Escapes special characters in a string for use in an SQL statement
$id = $_GET['id'];
$id=mysql_real_escape_string($id);
$sql = "select * from wp_certificari WHERE id = '{$id}'";
$rst = mysql_query($sql);
$row=mysql_num_rows($rst);
if($row>0){
//outside while loop
echo "<center>\n";
echo "<b>Detalii Certificat:</b>";
echo "<table border='1'>";
echo"<thead>";
echo "<th>Denumire certificare</th>";
echo "<th>Serie si numar certificare</th>";
echo "<th>Data certificarii</th>";
echo "<th>Valabilitate certificare</th>";
echo "<th>Sector Financiar</th>";
echo"</thead>";
while($a_row = mysql_fetch_assoc($rst)) {
echo "<tr><td class='lalign'>{$a_row['nume']}</td>" ;
echo "<td class='lalign'>{$a_row['serie_numar']}</td>" ;
echo "<td class='lalign'>{$a_row['data']}</td>" ;
echo "<td class='lalign'>{$a_row['valabilitate']}</td>" ;
echo "<td class='lalign'>{$a_row['sector_financiar']}</td></tr>" ;
}
//outside while loop
echo"</table>";
echo "</center>\n";
}
Note:- Don't use mysql because it is deprecated instead use mysqli or
PDO
To prevent sql injection check this link How can I prevent SQL-injection in PHP?
You have to get table part outside from while loop.
$id = $_GET['id'];
$sql = "select * from wp_certificari WHERE id = '{$id}'";
$rst = mysql_query($sql);
echo "<center>\n";
echo "<b>Detalii Certificat:</b>";
echo "<table border='1'>";
echo "<thead>";
echo "<tr>";
echo "<th>Denumire certificare</th>";
echo "<th>Serie si numar certificare</th>";
echo "<th>Data certificarii</th>";
echo "<th>Valabilitate certificare</th>";
echo "<th>Sector Financiar</th></tr>";
echo "</thead><tbody>";
while($a_row = mysql_fetch_assoc($rst)) {
echo "<tr>";
echo "<td class='lalign'>{$a_row['nume']}</td>" ;
echo "<td class='lalign'>{$a_row['serie_numar']}</td>" ;
echo "<td class='lalign'>{$a_row['data']}</td>" ;
echo "<td class='lalign'>{$a_row['valabilitate']}</td>" ;
echo "<td class='lalign'>{$a_row['sector_financiar']}</td></tr>";
}
echo"</tbody></table>";
echo "</center>\n";
Basically I have 4 fields in a form. I want to the user search for books in a library by either title, or by author or both. I also want the user to set the length of the list of items and from the starting point, these are not restrictions though the user does not have to specify.
Here is the code:
require_once __DIR__.'/config.php';
session_start();
$dbh = new PDO('mysql:host=' . DB_HOST . ';dbname=' . DB_USERNAME, DB_USERNAME, DB_PASSWORD);
$title = $_GET["title"];
$authors = $_GET["authors"];
$st = $_GET["start"];
$ln = $_GET["length"];
$stmt = $dbh->prepare("SELECT title, authors, description, price FROM books WHERE title = :title LIMIT :length OFFSET :start");
$stmt->execute(array(':title' => $title,':start' => $st,':length' => $ln));
while ($row = $stmt->fetch(PDO::FETCH_ASSOC))
{
$title = $row['title'];
$authors = $row['authors'];
$description = $row['description'];
$price = $row['price'];
}
echo "<table>";
echo "<tr>";
echo "<td>Title</td>";
echo "<td>$title</td>";
echo "</tr>";
echo "<tr>";
echo "<td>Authors</td>";
echo "<td>$authors</td>";
echo "</tr>";
echo "<tr>";
echo "<td>Description</td>";
echo "<td>$description</td>";
echo "</tr>";
echo "<tr>";
echo "<td>Price</td>";
echo "<td>$price</td>";
echo "</tr>";
echo "</table>";
So far it literally just returns me what I have typed in the input - so nothing much at all! Does anyone know how I can do this?
Adapt your code this way:
echo "<table>";
while ($row = $stmt->fetch(PDO::FETCH_ASSOC))
{
$title = $row['title'];
$authors = $row['authors'];
$description = $row['description'];
$price = $row['price'];
echo "<tr>";
echo "<td>Title</td>";
echo "<td>$title</td>";
echo "</tr>";
echo "<tr>";
echo "<td>Authors</td>";
echo "<td>$authors</td>";
echo "</tr>";
echo "<tr>";
echo "<td>Description</td>";
echo "<td>$description</td>";
echo "</tr>";
echo "<tr>";
echo "<td>Price</td>";
echo "<td>$price</td>";
echo "</tr>";
}
echo "</table>";
to print all the rows returned by the query. Your code was printing just the last row.
I'm not that good in programming PHP, and still learning from it.
Here's my problem, I need to display the result of rows from two different tables, had researched things and tried but all failed.
Hope someone could give some advice with my line of code.
$query = "SELECT tblparent.*, tblchild.* FROM tblparent, tblchild* FROM tblparent";
$num_results = $result->num_rows;
$result = $mysqli->query( $query );
if( $num_results ){
echo "<center><table border='1' id='members'>";
echo "<tr>";
echo "<th>Parent ID</th>";
echo "<th>Parent Firstname</th>";
echo "<th>Parent Lastname</th>";
echo "<th>Parent Middlename</th>";
echo "<th>Child ID</th>";
echo "<th>Child Firstname</th>";
echo "<th>Child Middlename</th>";
echo "<th>Child Lastname</th>";
echo "<th>Action</th>";
echo "</tr>";
while( $row = $result->fetch_assoc() ){
extract($row);
echo "<tr>";
echo "<td>{$Parent_ID}</td>";
echo "<td>{$PFname}</td>";
echo "<td>{$PLname}</td>";
echo "<td>{$PMname}</td>";
echo "<td>{$Child_ID}</td>";
echo "<td>{$CFname}</td>";
echo "<td>{$CMname}</td>";
echo "<td>{$CLname}</td>";
echo "<td>";
echo "<a href='#' onclick='delete_mem( {$Parent_ID} );'>Delete</a>";
echo "</td>";
echo "</tr>";
}
echo "</table>";
}
else{
echo "No records found.";
}
$result->free();
$mysqli->close();
I see two mistakes:
you should satisfy the right order of statements, $result should be
before $num_results assigment.
it seems that there is a mistake in your SQL query.
You need to adjust the following code, I am assuming that tblparent has an id and tblchild has a relation to tblparent id as parent_id:
$query = "SELECT tblparent.*, tblchild.* FROM tblparent, tblchild WHERE tblparent.id = tblchild.parent_id";
$result = $mysqli->query( $query );
$num_results = $result->num_rows;