Named Arguments After Argument Unpacking in PHP 8.1
Since PHP 8.0, we can use named arguments. These arguments can be passed to function or class method based on the parameter name. In PHP 8.0, combining named arguments with…
Intersection Types in PHP 8.1
Since PHP 8.0, we can use union types which allows to provide two or more types for parameters, return values, and properties. Given value should be one of the specified…
First-class Callable Syntax in PHP 8.1
PHP offers Closure::fromCallable static method which allows to create a new anonymous function also known as Closure from specified callback using the current scope. For example, if we want to…
New never Return Type in PHP 8.1
PHP allows to define type declarations for parameters, return values, and properties. Since PHP 8.1, we can use never return type. It indicates that function or class method throws an…
Readonly Properties in PHP 8.1
Since PHP 8.1, class properties can be declared as readonly. This means that class property can be initialized once and cannot be modified later. Readonly properties are declared with readonly…
Generate XXH64 Hash
XXH64 is a variant of xxHash non-cryptographic hash function that accepts a string of any length and returns a 64-bit fixed-length digest value, commonly represented as a sequence of 16…
Array Unpacking with String Keys in PHP 8.1
PHP has spread operator (...) which allows to unpack arrays. When array is prefixed with spread operator, an array elements are spread in place. The spread operator can be used…
Define Line Endings for fputcsv Function in PHP 8.1
PHP provides fputcsv function which formats an array of fields as CSV line and writes it to a file. Since PHP 8.1, this function accepts a new optional parameter which…
AVIF Image Format Support in GD Extension in PHP 8.1
AVIF is a pretty new image format compared with PNG or JPEG. Since PHP 8.1, GD extension can be compiled with AVIF support. The gd_info function returns features of the…
Passing null to Non-nullable Parameters of Built-in Functions is Deprecated in PHP 8.1
PHP allows to specify types for function and class method parameters. Passing null to non-nullable parameter will emit a fatal error. In versions prior to PHP 8.1, this behavior only…