This article brings you relevant knowledge about PHP, which mainly introduces the two new strong types added in PHP8.2, namely null and false, which specify data for all variables. Types are called strong types. Strong types can make the code more robust, easier to maintain, and more readable. Let's take a look at it. I hope it will be helpful to everyone.
Recommended learning: "PHP Video Tutorial"
PHP has been continuously improving strong typing since 7.0. We You can declare types for method parameters, return values, class attributes, etc.
Strong typing can make code more robust, easier to maintain, and more readable.
The PHP 8.2 under development introduces two new types, null and false.
Prior to this, the null type could only be used with other types.
For example: ?int is int or null; bool is a logical type.
This is the first time that null and false are allowed to be used alone.
The RFC has been passed, the code has been merged into the master branch, and now we can experience this new feature.
Recommended study: "PHP Video Tutorial"
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