PHP MySQL Select Data
PHP-MySQLi Tutorial » PHP MySQL Select Data
How to select data from mysql database tables using PHP?
How to select data from mysql database tables using PHP MySQLi and PDO
The SQL SELECT statement is used to select the records from database tables. Its basic syntax is as follows:
Syntax:
In the previous chapter we have creat an empty table "Students", with six columns as: "id", "first_name", "last-name", "email", "password" and "date" and we select row from database.
PHP MySQL select data to display from database ( MySQLi Object-oriented ) - example
Open a Connection to MySQL
select data to display from mysql database using an html form
The following examples select data to display from database "Students" table:
<?php
$server_name = "localhost";
$user_name = "username";
$password = "password";
$db_name = "myDB";// Create connection
$con = new mysqli($server_name, $user_name, $password, $db_name);
// Check connection
if ($con->connect_error) {
die("Connection failed: " . $con->connect_error);
}$sql = "SELECT id, first_name, last_name FROM Students";
$result = $con->query($sql);if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo "id: " . $row["id"]. " - Name: " . $row["first-name"]. " " . $row["last-name"]. "<br>";
}
} else {
echo "0 results";
}
$con->close();
?>
If you remember from the preceding chapter, id field was marked with AUTO_INCREMENT flag. This modifier tells the MySQL to automatically assign a value to this field if it is left unspecified, by incrementing the previous value by 1.
Function num_rows() checks if in database are more than zero rows.
If we have more than zero rows then returned, function fetch_assoc() where puts all the results into an associative array that we can loop through.
The while() - loops through the result set and outputs the data from the id, first_name and last_name columns.
PHP MySQL select data from mysql using ( PHP MySQLi Procedural )
How to select data from mysql database tables using PHP MySQLi Procedural
<?php
$server_name = "localhost";
$user_name = "username";
$password = "password";
$db_name = "myDB";// Create connection
$con = mysqli_connect($server_name, $user_name, $password, $db_name);
// Check connection
if (!$con) {
die("Connection failed: " . mysqli_connect_error());
}$sql = "SELECT id, first_name, last_name FROM Students";
$result = mysqli_query($con, $sql);if (mysqli_num_rows($result) > 0) {
mysqli_close($con);
// output data of each row
while($row = mysqli_fetch_assoc($result)) {
echo "id: " . $row["id"]. " - Name: " . $row["first_name"]. " " . $row["lastn_ame"]. "<br>";
}
} else {
echo "0 results";
}
?>
PHP MySQL Select Data, php mysql select data between two dates, php mysql select data from multiple tables, from table, from two tables, php mysql retrieve data, php mysql drop down menu to select data to display select data from a mysql database using an html form, select data from multiple databases mysql, select data from another database mysql, select data from form to mysql database php, how to select data from mysql database tables using php, android volley select data from mysql database by id specified by user
PDO get / select data from database - example
Example (PDO) select data from database - is a little bit different:
<?php
echo "<table style='border: dotted 2px green;'>";
echo "<tr><th>Id</th><th>First_name</th><th>Last_name</th></tr>";class TableRows extends RecursiveIteratorIterator {
function __construct($it) {
parent::__construct($it, self::LEAVES_ONLY);
}function current() {
return "<td style='width: 200px; border: 2px dotted green;'>" . parent::current(). "</td>";
}function beginChildren() {
echo "<tr>";
}function endChildren() {
echo "</tr>" . "\n";
}
}$server_name = "localhost";
$user_name = "username";
$password = "password";
$db_name = "my_DB_PDO";try {
$con = new PDO("mysql:host=$server_name;dbname=$db_name", $user_name, $password);
$con->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$stmt = $conn->prepare("SELECT id, first_name, last_name FROM Dtudents");
$stmt->execute();// set the resulting array to associative
$result = $stmt->setFetchMode(PDO::FETCH_ASSOC);foreach(new TableRows(new RecursiveArrayIterator($stmt->fetchAll())) as $k=>$v) {
echo $v;
}
}
catch(PDOException $e) {
echo "Error: " . $e->getMessage();
}
$con = null;
echo "</table>";
?>
PHP MySQL Select Data, php mysql select data between two dates, php mysql select data from multiple tables, from table, from two tables, php mysql retrieve data, php mysql drop down menu to select data to display select data from a mysql database using an html form, select data from multiple databases mysql, select data from another database mysql, select data from form to mysql database php, how to select data from mysql database tables using php, android volley select data from mysql database by id specified by user
PHP MySQL Select Data - php mysqli
This tool makes it easy to create, adjust, and experiment with custom colors for the web.
Magnews2 is a modern and creative free magazine and news website template that will help you kick off your online project in style.
Find here examples of creative and unique website layouts.
Find here examples of creative and unique website CSS HTML menu.