If you have learned the fundamentals of PHP then it’s time for you to try some PHP frameworks. You should always explicitly indicate UTF-8 when given the option. As such it’s not a good choice either. Memcached is a popular choice and it works with many languages, including PHP. 64-bit systems are OK. Stack Overflow: Accessing dates beyond 2038. It’s not an advocate of a certain coding style, pattern, or framework. And it’s really very difficult for anybody to get hold of the best practices overnight. Which way is the “right” way? It’s really very unfortunate seeing some beginners or even seasoned programmers not focussing on writing meaningful comments to their codes just because they are too lazy. The concept of object-oriented programming was first introduced in PHP 4, but the major improvement in OOP was introduced from PHP 5. PHP is a complex language that has suffered years of twists, bends, stretches, and hacks. If you read the section on validating email addresses, you might also be considering using the filter_var() function. This document was last reviewed on January 25, 2019. The answer lies in the little differences between the two methods. Explicitly defining the encoding of your strings in every script will save you a lot of headaches down the road. Things like "single quotes vs double quotes" are features of PHP itself to make programming easier and there are no reasons not use one way in preference to another. The basic string operations, like concatenating two strings and assigning strings to variables, don’t need anything special for UTF-8. Hashing is the standard way of protecting a user’s password before it’s stored in a database. There doesn’t seem to be an easy, portable workaround here. If you don’t update your PHP version … PHP’s loose typing system offers many different ways of checking a variable’s value. If you take the burden of storing the value returned by the function in a separate variable before the loop, then you would be saving enough execution time as in the first case the function will be called and executed every time the loop runs which can increase the time complexity of the program for large loops. 1. If you just have a simple string to display, then always go for single quotes. The best idea is to delete this file whenever you are done with it. but you can use E_ALL to report all kinds of errors. I really don’t understand why people often tend to skip a few characters in declaring PHP. HTML Purifier is a well-tested but slow library. If you are doing this intentionally and is ready to compromise performance just for the sake of saving a line of code, then you certainly need to think once again. Ultimate PHP Security Best Practices Securing web applications from all sorts of forged attacking attempts is the ultimate duty of a web developer. DRY or Don’t Repeat Yourself is a programming concept in software engineering, which tries to cut down redundancy from your code. APCu is supported by the PHP project and has much of the same functionality as Memcached. Which one should you use when defining your constants? Not having set the character set to utf8mb4 in the connection string might cause Unicode data to be stored incorrectly in your database, depending on your configuration. It can be installed with: Once you have it installed, use the Transliterator class to remove diacritics from text: Thanks for reading! It’s maintained by me, Alex Cabal. Fortunately for us, the version of PHP we’re talking about features the much friendlier DateTime class. Stack Overflow: Are PHP short tags acceptable to use? Php project structure best practices - Der absolute TOP-Favorit unserer Tester. Auf der anderen Seite liest man gelegentlich auch von Männern, die von kleinerem … It turns out that the Memcached library is the one that best implements the Memcached protocol. Both of these keep a limited number of PHP processes running, and Apache sends requests to these interfaces to handle PHP execution on its behalf. The main idea here is to make your code look clean and easily readable and debuggable by you and other fellow programmers. PDO makes all that gunk unnecessary. A common task your web app might need to do is to check if a user has entered a valid email address. There were various flavors of caches you could choose from. Quite often, many people loose many high-paying jobs just because they have never put their attention to the best practices of the language. It’s not a guide to common web application problems like cookie storage, caching, coding style, documentation, and so on. So, if you want to be a professional developer then you must know, understand and follow the best practices of the language and should start practicing them from the very next piece of code you write. Your code will look much more organised and easily debuggable  with the object oriented approach. Consider setting up a caching solution like, When testing the return value of a function that can return either 0 or boolean. PHP provides several ways to auto-load files containing classes that haven’t yet been loaded. For example, if you use substr() on a UTF-8 string, there’s a good chance the result will include some garbled half-characters. If a low-level task has multiple and confusing approaches in PHP… This function allows more than one __autoload() function to be defined, so you won’t step on any other code’s own __autoload() function. A lot of ink has been spilled about whether to define strings with single quotes (‘) or double quotes (“). I’ve been writing PHP for a long time now, and currently I run Scribophile, an online writing group for serious writers, Writerfolio, an easy online writing portfolio for freelancers, and Standard Ebooks, an open source project that produces liberated ebooks for the true book lover. But at some point PHP gained the ability to also declare constants with the const keyword. So one clear best practice that needs more emphasis is to always use a current version of PHP (5.6.x as of this article). Because these libraries limit how many PHP processes are alive, memory usage is greatly reduced without affecting performance. In particular, high-load web apps might benefit from more esoteric solutions to some of these problems. If you are developing PHP applications, then it’s quite likely that you would want to carry out the entire development process locally in your computer. This was the standard solution for web servers since Ubuntu 12.04. This can lead to spectacular headaches later on. If your web app only needs to completely escape (and thus render harmless, but not remove entirely) HTML, use PHP’s built-in htmlentities() function. If you’re only coding for yourself and have control over the PHP configuration you’ll be using, you might find the shorter tags to be more convenient. You can install the Memcached client library on Ubuntu 16.04 by running this command in your terminal: Before Ubuntu 14.04, the APC project was both an opcode cache and a Memcached-like key-value store. In the bad old days of PHP we had to work with dates and times using a bewildering combination of date(), gmdate(), date_​timezone_​set(), strtotime(), and so on. These new features can make your programming life a lot interesting and easier. Wider den Testsieger kam … However if you don’t need to access a Memcached instance from a series of distributed servers, then use APCu instead. There are several ways of configuring a web server to serve PHP. The following example is for Apache 2.4.29, but PHP-FPM also works for other web servers like Nginx. There are various levels of error reporting available in PHP, like E_NOTICE, E_WARNING, E_PARSE, etc. Even if you declare your character set to be utf8mb4, make sure that your actual database tables are in the utf8mb4 character set. There are a few different ways to delimit blocks of PHP: , ,

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