How can PHP developers effectively troubleshoot issues with database connectivity and data insertion in their scripts?

To troubleshoot database connectivity and data insertion issues in PHP scripts, developers can start by checking the database connection settings in their code, ensuring the correct database credentials are used. They can also use error handling techniques to catch any database-related errors and log them for debugging purposes. Additionally, developers can test their SQL queries separately to verify their correctness before executing them in the script. 

<?php
// Database connection settings
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "mydatabase";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// Sample SQL query for data insertion
$sql = "INSERT INTO users (name, email) VALUES ('John Doe', 'john.doe@example.com')";

// Execute the query
if ($conn->query($sql) === TRUE) {
    echo "New record created successfully";
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}

// Close the connection
$conn->close();
?>

Keywords

MySQL PDO SQL injection error handling debugging

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