How can developers effectively debug PHP scripts to identify and resolve errors in database update operations?

To effectively debug PHP scripts for database update operations, developers can use error reporting functions like error_reporting(E_ALL) and ini_set('display_errors', 1) to display any errors that occur during execution. Additionally, developers can use functions like mysqli_error() to retrieve detailed error messages from database operations, helping to pinpoint the root cause of the issue. 

<?php
error_reporting(E_ALL);
ini_set('display_errors', 1);

// Perform database update operation
$conn = new mysqli($servername, $username, $password, $dbname);

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

$sql = "UPDATE table_name SET column_name = 'new_value' WHERE condition";
if ($conn->query($sql) === TRUE) {
    echo "Record updated successfully";
} else {
    echo "Error updating record: " . $conn->error;
}

$conn->close();
?>

Keywords

PHP debugging database errors update operations

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