Book Image

Mastering PHP 7

By : Branko Ajzele
Book Image

Mastering PHP 7

By: Branko Ajzele

Overview of this book

PHP is a server-side scripting language that is widely used for web development. With this book, you will get a deep understanding of the advanced programming concepts in PHP and how to apply it practically The book starts by unveiling the new features of PHP 7 and walks you through several important standards set by PHP Framework Interop Group (PHP-FIG). You’ll see, in detail, the working of all magic methods, and the importance of effective PHP OOP concepts, which will enable you to write effective PHP code. You will find out how to implement design patterns and resolve dependencies to make your code base more elegant and readable. You will also build web services alongside microservices architecture, interact with databases, and work around third-party packages to enrich applications. This book delves into the details of PHP performance optimization. You will learn about serverless architecture and the reactive programming paradigm that found its way in the PHP ecosystem. The book also explores the best ways of testing your code, debugging, tracing, profiling, and deploying your PHP application. By the end of the book, you will be able to create readable, reliable, and robust applications in PHP to meet modern day requirements in the software industry.
Table of Contents (24 chapters)
Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface
16
Debugging, Tracing, and Profiling

Max execution time


The maximum execution time is one of the most common errors developers come across. By default, the maximum execution time of the PHP script executing in the browser is 30 seconds, unless we execute the script within the CLI environment, where there is no such limitation.

We could easily test that through a simple example, given through the index.php and script.php files, as follows:

<?php
// index.php
require_once 'script.php';
error_reporting(E_ALL);
ini_set('display_errors', 'On');
sleep(10);
echo 'Test#1';
?php
// script.php
sleep(25);
echo 'Test#2';

Executed from within the browser, this will return the following error:

Test#2
Fatal error: Maximum execution time of 30 seconds exceeded in /var/www/html/index.php on line 5

Executed from within the CLI environment, this will return the following output:

Test#2Test#1

Luckily for us, PHP provides two ways to control the timeout value:

  • Using the max_execution_time configuration directive (php.ini file, ini_set() function)
  • Using...