PHP8.1 released: supports string concatenation symbol @

PHP8.1 released: supports string concatenation symbols@

With the continuous advancement and development of technology, programming languages ​​are also constantly updated and improved. Recently, PHP launched its latest version, PHP 8.1, which introduces some exciting new features and improvements. One of the important updates is support for the string concatenation symbol @.

In earlier versions of PHP, we usually used "." to concatenate strings. For example:

$name = 'John';
$age = 28;
$message = 'My name is ' . $name . ' and I am ' . $age . ' years old.';
echo $message;

The above code will output: My name is John and I am 28 years old.

This method of concatenating strings is very common and is what PHP developers have always done. The way you are used to it. However, this splicing method may seem a little cumbersome in some special scenarios, especially when we need to process a large number of string splicing. To solve this problem, PHP8.1 introduced the string concatenation symbol @.

Using the @ symbol for string concatenation can make the code more concise and readable. The following is an example of string concatenation using the @ symbol:

$name = 'John';
$age = 28;
$message = 'My name is @$name and I am @$age years old.';
echo $message;

The above code achieves the same function as the previous example, that is, output: My name is John and I am 28 years old. But this way More intuitive and concise, eliminating the step of using "." to splice strings.

In addition to the splicing of variables in the above examples, the @ symbol can also be used with constants and expressions. For example:

const PI = 3.14;
$radius = 5;
$area = @PI * pow($radius, 2);
echo "The area of the circle is @$area square units.";

The above code will output: The area of ​​the circle is 78.5 square units.

As you can see, by using the @ symbol for string splicing, we can more conveniently Different types of data are combined into a complete string and output to the user. This not only improves the readability of the code, but also simplifies the process of writing it.

However, it should be noted that the @ symbol can only be used for string concatenation. If we want to do other operations, such as variable assignment or arithmetic operations, we still need to use "." or other corresponding operators.

In general, PHP8.1’s string concatenation symbol @ provides PHP developers with a more concise and intuitive way to perform string concatenation. When dealing with a large number of string concatenations, the @ symbol can help us reduce unnecessary code volume and complexity and improve development efficiency. If you are a PHP developer, you might as well try this new feature of PHP8.1. I believe it will bring you a better development experience.

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