October 2026 – Page 5 – WebCheatSheet

HTML

Share One CSS Stylesheet Across Multiple HTML Pages

Put reusable styles in a CSS file and link it from every HTML page using a path that matches the site deployment.

PHP

Find duplicate Apache Listen 443 directives or a competing process before starting HTTPS in a local XAMPP environment.

PHP

Check curl_setopt_array results, catch PHP 8 ValueError for invalid options, and report transfer failures separately.

SQL

Understand the scope of SQL Server automatic page repair in a distributed availability group and monitor every underlying replica.

SQL

Use supported T-SQL changes at the publisher and let transactional replication propagate compatible schema changes to subscribers.

SQL

Identify the exact SQL Server instance and engine version behind an SSMS query window before troubleshooting unsupported syntax.

PHP

Let a PHP controller validate request data, call the model, and pass an explicit view-data array to a template.

PHP

Refresh an idle PHP PDO connection before starting a MySQL transaction, while avoiding unsafe retries after writes begin.

PHP

Set the visible From address and SMTP envelope sender separately in PHPMailer without manually adding a Return-Path header.

SQL

Enable the Microsoft JDBC driver bulk-copy path for compatible prepared batch inserts and measure the result safely.