Write to PHP Log Files Easily: 5 Code Examples (2023)
How to Write to Log Files in PHP When developing applications in PHP (any language), logging is an essential tool for tracking what happens in the code. By logging errors, warnings, and other important information, developers can: Identify and diagnose application issues, making locating and fixing bugs or errors easier. Detect security breaches or attacks, such as unusual login attempts or suspicious network activity. Identify performance issues in applications or systems, such as slow queries or memory leaks. Ensure compliance with regulatory requirements or internal policies. For example, financial institutions may be required to log all financial transactions for audit purposes. Track user activity or system changes, making storing, monitoring, and auditing user behavior or system changes easier. This article will discuss some of the most common PHP methods for writing to log files. PHP Error Logging Code Example <?php use Monolog\Logger; use Monolog\Handler\StreamHandler; function divide_numbers($numerator, $denominator) { try {…