count函數里加函數

PHP count()函數 (PHP count() function)

"count() function" is used to get the total number of elements of an array.

“ count()函數”用于獲取數組元素的總數。

Syntax:

句法：

count(array, [count_mode])

Here,

這里，

• array is the name of an input array

  array是輸入數組的名稱

• count_mode is an optional parameter and it's default value is 0, it has two values

  count_mode是一個可選參數，默認值為0，它有兩個值

  0 – It does not count all elements of a multidimensional array

  0 –不計算多維數組的所有元素

  1 – It counts all elements of a multidimensional array

  1 –計算多維數組的所有元素

Examples:

例子：

Input:$arr1 = array("101", "102", "103", "104", "105");Output:arr1 has 5 elements

PHP code: Using single dimensional array

PHP代碼：使用一維數組

<?php $arr1 = array("101", "102", "103", "104", "105");$arr2 = array("Amit", "Abhishek", "Prerana", "Aleesha", "Prem");$len = count($arr1);print ("arr1 has $len elements\n");$len = count($arr2);print ("arr2 has $len elements\n"); ?>

Output

輸出量

arr1 has 5 elements arr2 has 5 elements

PHP code: Using multidimensional array

PHP代碼：使用多維數組

<?php $students = array("101" => array("name" => "Amit","age" => 21,),"102" => array("name" => "Abhi","age" => 20,));$len = count($students);print ("count value = $len (count_mode is not provided)\n");$len = count($students, 0);print ("count value = $len (count_mode is set to 0)\n"); $len = count($students, 1);print ("count value = $len (count_mode is set to 1)\n"); ?>

Output

輸出量

count value = 2 (count_mode is not provided) count value = 2 (count_mode is set to 0) count value = 6 (count_mode is set to 1)

翻譯自: https://www.includehelp.com/php/count-function-with-example.aspx

count函數里加函數

總結

以上是生活随笔為你收集整理的count函数里加函数_PHP count（）函数与示例的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。