![Null Coalescing Assignment Operator
The null coalescing assignment operator is a short way to combine an isset () check with a ternary operator.
The following example shows how you can check the variable $ product ['id']. If it is set, do nothing.
Otherwise, assign it the value on the right. You can see code development between PHP versions. It is much
easier to write in 7.4](https://image.slidesharecdn.com/firstlookatphp7-191010040101/85/php-7-4-for-word-press-developers-8-320.jpg)
![Array and String
Offset access with
curly braces
Using curly braces for array and string
offset access is a bit rarer, but I've seen it
a few times in the wild. Be sure to use
square brackets such as [] instead of
curly brackets likes {}.](https://image.slidesharecdn.com/firstlookatphp7-191010040101/85/php-7-4-for-word-press-developers-12-320.jpg)
php 7.4 for word press developers
- 1. First look at PHP 7.4 for WordPress developers
- 2. PHP 7.4 is scheduled for release on November 28, 2019. WordPress 5.3 will also contain various commits that address outdated functions. Most WordPress plugins and theme developers are unlikely to be able to use the new PHP 7.4 features for a while, except when working on setups where they have some control over the environment. Given the reluctance of WordPress to link the minimum PHP version to the latest supported versions, it may take years before it is safe to use new features. However, developers must ensure that their plug-ins and themes are compatible with 7.4. It is also a good practice to keep current functions.
- 3. WordPress 5.2 pushed the minimum requirement to PHP 5.6 with a recommendation of PHP 7.3. Here is an overview of current PHP usage statistics for WordPress installations ● PHP 7.3 – 9.6% ● PHP 7.2 – 22.2% ● PHP 7.1 – 13.5% ● PHP 7.0 – 14.9% ● PHP 5.6 – 25.7%
- 4. PHP 7 New features PHP 7.4 contains a number of new Features that make it easier to write code. The following is a brief overview of some of the features that are likely to be useful for WordPress plug-ins and theme authors. Typed properties
- 5. Attempting to assign the wrong data type will result in a fatal error if strict types are specified. Otherwise PHP will force the value to the correct type. class Event { public int $id; public string $title;
- 6. Arrow functions Many developers shout for arrow functions that are similar to JavaScript. They are pretty sweet to use. However, the arrow functions of PHP, also called "short closures"are slightly different. PHP 7.4 introduces the fn keyword (now a reserved keyword). A short closure can have only one expression and no return keyword. They are not as powerful as their JavaScript cousins, but they provide a quick fix for some scenarios.
- 7. Unpack the inside of the arrays The unpacking of arguments was introduced in PHP 5.6, so this can still be unknown territory for many developers in the WordPress space. It was an invaluable feature in some of my projects. With PHP 7.4, developers can extract an array within an array. This should be faster than array_merge () because the spread operator (...) is a language construct instead of a function.
- 8. Null Coalescing Assignment Operator The null coalescing assignment operator is a short way to combine an isset () check with a ternary operator. The following example shows how you can check the variable $ product ['id']. If it is set, do nothing. Otherwise, assign it the value on the right. You can see code development between PHP versions. It is much easier to write in 7.4
- 9. Deprecated Features PHP 7.4 will deprecate various features. Author of plug-ins and themes want to consult the complete list to determine if they need to update outdated code. I have selected a few items that I have seen in recent years in plug-in and theme code. Most other deprecated features are unlikely in the current code bases.
- 10. Nested Ternary Operators Without parentheses Nested ternary operators are generally something that you as a developer should avoid. Serious. Just don't write them. They are difficult to follow and are prone to bugs due to human errors. However, if you want to ignore caution and ignore good advice, at least use parentheses. PHP 7.4 has eliminated nested ternaries without them
- 11. Use Array_key_exists () on objects Developers should not use array_key_exists () on objects because objects are not arrays. Use the more appropriate property_exists () or isset () property instead
- 12. Array and String Offset access with curly braces Using curly braces for array and string offset access is a bit rarer, but I've seen it a few times in the wild. Be sure to use square brackets such as [] instead of curly brackets likes {}.
- 13. I hope you like this presentation, if you want to learn more about PHP, then PHP training in Chandigarh is best for you. Contact us for query. Address: CBitss Technologies, sector 34A, sco 23-24-25, Chandigarh, 160022. Mobile No: 9988741983