intersect函數

PHP array_intersect()函數 (PHP array_intersect() Function )

array_intersect() function is used to find the matched elements from two or more elements. Function “array_intersect()” compares the values of the first array with the other arrays and returns matched elements.

array_intersect()函數用于從兩個或多個元素中查找匹配的元素。 函數“ array_intersect()”將第一個數組的值與其他數組進行比較，并返回匹配的元素。

Syntax:

句法：

array_intersect(array1, array2, [array3,...]);

Here, array1, array2 are the input arrays other arrays are an optional.

在這里， array1 ， array2是輸入數組，其他數組是可選的。

Examples:

例子：

Input:$arr1 = array("Hello", "Hi", "Okay", "Bye!");$arr2 = array("Okay", "Hello", "Bye", "Hi");Function calling: array_intersect($arr1, $arr2);Output:Array([0] => Hello[1] => Hi[2] => Okay)

PHP code 1: Comparing two string arrays.

PHP代碼1：比較兩個字符串數組。

<?php//input array1 $arr1 = array("Hello", "Hi", "Okay", "Bye!");//input array2$arr2 = array("Okay", "Hello", "Bye", "Hi");//finding matched elements$ans = array_intersect($arr1, $arr2);print_r ($ans); ?>

Output

輸出量

Array ([0] => Hello[1] => Hi[2] => Okay )

PHP code 2:Comparing three arrays with strings & numbers.

PHP代碼2：將三個數組與字符串和數字進行比較。

<?php//input array1 $arr1 = array(10, 20, 30, "Hello", 40, "Hi", 50);//input array2$arr2 = array(50, 60, "Hello", 70, 80);//input array3$arr3 = array(10, 20, "Hello", 50, "Hi", 30);//finding matched elements$ans = array_intersect($arr1, $arr2, $arr3);print_r ($ans); ?>

Output

輸出量

Array ([3] => Hello[6] => 50 )

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

intersect函數

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