What function can be used in php to get the size of an array?

You can get the size of the array by using the `count()` function, `sizeof()` function or `array_count_values()` function in php. Detailed introduction: 1. The count()` function creates an array, uses the count() function to obtain the size of the array, and outputs the size of the array; 2. The `sizeof()` function and the `array_count_values()` function create an array, Use the sizeof() function to get the size of the array, etc.

The operating environment of this tutorial: windows10 system, php8.1.3 version, DELL G3 computer.

1. In PHP, we can use the `count()` function to get the size of the array. The `count()` function is used to return the number of elements in an array. It can accept an array as a parameter and return the number of elements in the array.

The following is an example that demonstrates how to use the `count()` function to get the size of an array:

// 创建一个数组
$fruits = array("apple", "banana", "orange", "grape");
// 使用count()函数获取数组的大小
$size = count($fruits);
// 输出数组的大小
echo "数组的大小是：".$size;
?>

The above code will output: `The size of the array is: 4`.

2. In addition to the `count()` function, PHP also provides some other functions for obtaining the size of an array, such as the `sizeof()` function and the `array_count_values()` function. The `sizeof()` function has the same function as the `count()` function and can be used to obtain the size of an array. The `array_count_values()` function is used to return an associative array containing the number of times each element appears in the original array.

The following is an example that demonstrates how to use the `sizeof()` function and the `array_count_values()` function to get the size of an array:

// 创建一个数组
$fruits = array("apple", "banana", "orange", "grape");
// 使用sizeof()函数获取数组的大小
$size1 = sizeof($fruits);
// 使用array_count_values()函数获取数组的大小
$count = array_count_values($fruits);
$size2 = count($count);
// 输出数组的大小
echo "使用sizeof()函数获取的数组大小是：".$size1."
";
echo "使用array_count_values()函数获取的数组大小是：".$size2;
?>

The above code will output: `Using sizeof() The array size obtained by the function is: 4` and the array size obtained using the array_count_values() function is: 4`.

To summarize, in PHP, we can use the `count()` function, the `sizeof()` function or the `array_count_values()` function to get the size of the array. These functions are very simple and easy to use, and can help us quickly obtain the size of the array. .

The above is the detailed content of What function can be used in php to get the size of an array?. For more information, please follow other related articles on the PHP Chinese website!