What are common issues with nested while loops in PHP functions that display tables from a database?

Common issues with nested while loops in PHP functions that display tables from a database include infinite loops and incorrect data display. To solve this, ensure proper looping conditions are set for each while loop and use different variables to fetch and display data from the database. 

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

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

// Retrieve data from the database
$sql = "SELECT * FROM table_name";
$result = $conn->query($sql);

// Display table
echo "<table>";
while($row = $result->fetch_assoc()) {
    echo "<tr>";
    echo "<td>" . $row['column1'] . "</td>";
    echo "<td>" . $row['column2'] . "</td>";
    // Add more columns as needed
    echo "</tr>";
}
echo "</table>";

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

Keywords

nested while loops PHP functions database tables technical issues

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