What are common pitfalls when using PHP for pagination functions like the one described in the forum thread?

Common pitfalls when using PHP for pagination functions include not properly sanitizing user input, not handling edge cases like invalid page numbers, and not efficiently querying the database for the paginated data. To solve these issues, make sure to sanitize user input, validate page numbers, and optimize database queries for pagination. 

// Sanitize user input for page number
$page = isset($_GET['page']) ? filter_var($_GET['page'], FILTER_VALIDATE_INT) : 1;

// Validate page number
if($page <= 0){
    $page = 1;
}

// Calculate offset for database query
$limit = 10;
$offset = ($page - 1) * $limit;

// Query database for paginated data
$query = "SELECT * FROM table LIMIT $limit OFFSET $offset";
// Execute query and fetch results

Keywords

pagination PHP database queries limit and offset performance

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