How can PHP developers avoid errors when updating database records based on specific conditions like equal values?

When updating database records based on specific conditions like equal values, PHP developers can avoid errors by using SQL queries with the WHERE clause to specify the conditions. By checking for equality in the WHERE clause, developers can ensure that only records that meet the specific conditions are updated. 

<?php
// Connect to the database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";
$conn = new mysqli($servername, $username, $password, $dbname);

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

// Update records where the condition is met
$sql = "UPDATE table_name SET column_name = 'new_value' WHERE column_name = 'specific_value'";
if ($conn->query($sql) === TRUE) {
    echo "Records updated successfully";
} else {
    echo "Error updating records: " . $conn->error;
}

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

Keywords

PHP database update records conditions

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