PHPDB

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 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<body>
<?php
$host="localhost"; $username="root"; $password="";
// Connect to MySQL server (without selecting DB)
$conn = new mysqli($host, $username, $password);
// Check connection
if ($conn->connect_error) { die("Connection failed: " . $conn->connect_error."!"); }
echo "Connected successfully!<br>";
// set UTF8 character set encoding for this connection
$conn->set_charset('utf8');
// for testing purpose - drop the DB to recreate it again if exists - be careful with this!!!
// това не бива да го има в реален код – опасно е, защото изтрива цялата база
$sql = "DROP DATABASE IF EXISTS test";
$conn->query($sql);
// Create database test with collation UTF8 cyrillic – не забравяйте за collation, ако ползвате кирилица
$sql = "CREATE DATABASE test COLLATE utf8_general_ci";
if ($conn->query($sql) === TRUE) { echo "Database created successfully!<br>"; }
else { die("Error creating database: " . $conn->error); }
// Use database test
$sql = "USE test";
if ($conn->query($sql) === TRUE) {echo "Database selected successfully!<br>"; }
else { die("Error selecting database: " . $conn->error."!"); }
// Create table Persons
$sql = "CREATE TABLE Persons (
id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(40) NOT NULL,
family VARCHAR(40) NOT NULL,
job VARCHAR(30),
salary FLOAT)";
if ($conn->query($sql) === TRUE) { echo "Table Persons created successfully!<br>"; }
else { die("Error creating table: " . $conn->error."!"); }
// Insert into db test 5 records
$sql = "INSERT INTO Persons (name, family, job, salary)
VALUES ('Иван', 'Петров', 'снабдител', 1200.00)";
if ($conn->query($sql) === TRUE) { echo "New record Иван Петров created successfully!<br>"; }
else { die("Error: " . $sql . $conn->error); }
$sql = "INSERT INTO Persons (name, family, job, salary)
VALUES ('Петър', 'Слабаков', 'разработчик', 3200.00)";
if ($conn->query($sql) === TRUE) { echo "New record Петър Слабаков created successfully!<br>"; }
else { die("Error: " . $sql . $conn->error); }
$sql = "INSERT INTO Persons (name, family, job, salary)
VALUES ('Анелия', 'Драганова', 'разработчик', 2200.00)";
if ($conn->query($sql) === TRUE) { echo "New record Анелия Драганова created successfully!<br>"; }
else { die("Error: " . $sql . $conn->error); }
$sql = "INSERT INTO Persons (name, family, job, salary)
VALUES ('Делчо', 'Атанасов', 'шеф', 5000.00)";
if ($conn->query($sql) === TRUE) { echo "New record Делчо Атанасов created successfully!<br>"; }
else { die("Error: " . $sql . $conn->error); }
$sql = "INSERT INTO Persons (name, family, job, salary)
VALUES ('Пенка', 'Алексиева', 'чистачка', 500.00)";
if ($conn->query($sql) === TRUE) { echo "New record Пенка Алексиева created successfully!<br>"; }
else { die("Error: " . $sql . $conn->error); }
// Select all records
echo "<br>Всички записи са:<br>";
$sql = "SELECT * FROM Persons";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
 // output data of each row
 while($row = $result->fetch_assoc()) {
echo $row["id"].": ".$row["name"]." ".$row["family"]." - ".$row["job"].", ". $row["salary"]."
лв.<br>";
}
} else { echo "No results...<br>"; }
// Select само разработчиците
echo "<br>Разработчици са:<br>";
$sql = "SELECT * FROM Persons WHERE job = 'разработчик'";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
 // output data of each row
 while($row = $result->fetch_assoc()) {
echo $row["id"].": ".$row["name"]." ".$row["family"]." - ".$row["job"].", ". $row["salary"]."
лв.<br>";
}
} else { echo "No results...<br>"; }
// Select само заплата между 1000 и 3000 лв
echo "<br>Със заплата между 1000 и 3000 лв са:<br>";
$sql = "SELECT * FROM Persons WHERE salary BETWEEN 1000 AND 3000";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
 // output data of each row
 while($row = $result->fetch_assoc()) {
echo $row["id"].": ".$row["name"]." ".$row["family"]." - ".$row["job"].", ". $row["salary"]."
лв.<br>";
}
} else { echo "No results...<br>"; }
$conn->close();
?>
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