Home > Article > Backend Development > PHP array function sequence array_intersect() returns the intersection array of two or more arrays_PHP tutorial
PHP array function sequence array_intersect() returns the intersection array of two or more arrays_PHP tutorial
- WBOYOriginal
- 2016-07-21 15:23:001013browse
array_intersect() Definition and Usage
array_intersect() function returns the intersection array of two or more arrays.
The result array contains all values in the compared array that also appear in all other parameter arrays, and the key names remain unchanged.
Note: Only values are used for comparison.
Syntax
array_intersect(array1,array2,array3...)
| 参数 | 描述 |
|---|---|
| array1 | 必需。与其他数组进行比较的第一个数组。 |
| array2 | 必需。与第一个数组进行比较的数组。 |
| array3 | 可选。与第一个数组进行比较的数组。可以有多个。 |
Example
Copy code The code is as follows:
$a1=array (0=>"Cat",1=>"Dog",2=>"Horse");
$a2=array(3=>"Horse",4=>"Dog", 5=>"Fish");
print_r(array_intersect($a1,$a2));
?>
Output:
Array ( [ 1] => Dog [2] => Horse )
Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Previous article：Solution to the problem that XMLHttpRequest (Ajax) cannot set a custom Referer in PHP_PHP TutorialNext article：Solution to the problem that XMLHttpRequest (Ajax) cannot set a custom Referer in PHP_PHP Tutorial