php

How to compile PHP 7.1 in Ubuntu 16.04

PHPOn December 1, 2016 the PHP development community released version 7.1, which added 12 new features , we mention some of them below:

Nullable types: Type declarations for parameters and return values can now be marked as nullable by prefixing the type name with a question mark. This signifies that as well as the specified type, NULL can be passed as an argument, or returned as a value, respectively.
Void functions: The void type functions should not return any value so they should use an empty return or omit it completely, I think that if you omit the return it gives more clarity to the code since it is more consistent with the definition of void, the NULL value is not a valid return value for void functions.
Symmetric array destructuring : The shorthand array syntax ([]) may now be used to destructure arrays for assignments (including within foreach).

How to compile PHP-7.3 en Debian

On December 6, 2018 the PHP development community released version 7.3, which incorporated new features, here some of them:

  • More Flexible Heredoc and Nowdoc Syntax
  • Array Destructuring supports Reference Assignments
  • instanceof Operator accepts Literals
  • Trailing Commas are allowed in Calls
  • PCRE2 migration
  • Performance of the Multibyte String extension has been significantly improved

How to compare objects in PHP

PHP offers a simple way to compare objects using the comparison (==) and identity (===) operators.

When using the comparison operator (==), object variables are compared in a simple manner: Two object instances are equal if they have the same attributes and values and are instances of the same class.

When using the identity operator (===), object variables are identical if and only if they refer to the same instance of the same class.

How to Read XML files in PHP?

PHP

Over the past 4 years I have worked with many XML providers (interconnecting B2B applications) and some of these providers distribute big XML files, some of them have more than 2GB, as you may already suspect we should not dump 2GB of information into memory because PHP will generate a memory overflow fatal error and your application will not be able to recover by itself, so in this post I will explains how to solve this problem, using…

What is new in PHP 7.0?

The PHP community continues to add new features and functionality to this popular programming language in order to make it more attractive, functional and useful. The version 7 (released on December 3) is considered one of the major updates in all the history of PHP due the Zend Engine was refactored to achieve best performance and best use of the memory. Also new features that facilitate and accelerate web development were introduced.