New number increment function in PHP8.1

PHP8.1’s new number incrementer function

Since the release of PHP8.1, developers have welcomed a series of exciting new features and functions. One of the exciting new features is the number multiplier function. These functions make it easy to increment numbers and make the code more concise and clear. This article will introduce the new number incrementer function in PHP8.1 and provide some practical code examples.

In PHP8.1, three new number incrementer functions are added, namely inc(),dec(),incr() ,decr() are used to implement increment and decrement operations on numbers respectively. Using these functions is very simple, just provide a number as a parameter, the function will automatically increment or decrement it and return the result.

First, let’s take a look at the usage of the inc() function. inc()The function is used to increment the provided number by 1 and return the incremented result. The following is a sample code:

$num = 5;
$result = inc($num);
echo $result; // 输出6

In the above code, we pass the number 5 to the inc() function, which will increment the number by 1 and assign the incremented result to $resultVariable. Finally, we output the value of the $result variable and get the result 6.

In addition to the inc() function, there is also the dec() function that is used to decrement the provided number by 1. The example is as follows:

$num = 8;
$result = dec($num);
echo $result; // 输出7

Above In the code, the number 8 is passed to the dec() function. The function will decrement the number by 1 and assign the decremented result to the $result variable. Finally, we output the value of the $result variable and get the result 7.

In addition to the functions of incrementing and decrementing by 1, PHP8.1 also introduces the incr() and decr() functions. These two functions can specify the increment or decrement step size, which can be any integer. The following is a sample code:

$num = 10;
$result = incr($num, 3);
echo $result; // 输出13

In the above code, we pass the number 10 and the step size 3 to the incr() function. The function will increment the number by 3 and add the incremented The result is assigned to the $result variable. Finally, we output the value of the $result variable and get the result 13.

Similarly, the decr() function can implement the decrement operation of the specified step size. The example is as follows:

$num = 20;
$result = decr($num, 5);
echo $result; // 输出15

In the above code, the number 20 and the step size 5 are passed Give the decr() function, the function will decrement the number by 5, and assign the decremented result to the $result variable. Finally, we output the value of the $result variable and get the result 15.

To sum up, the new number incrementer function in PHP8.1 can help developers increase and decrease numbers more conveniently. These functions are simple to use. You only need to provide a numeric parameter and specify the increment or decrement step size. The function will automatically calculate and return the increment or decrement result. Developers can simplify code and improve development efficiency through these functions.

I hope this article will help everyone understand the new number increment function in PHP8.1, and at the same time, it can also stimulate everyone's interest in other functions of PHP8.1 and further explore and use these new features.

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