php inner join array

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showing results for - "php inner join array"
Iker
10 Jul 2019
1$arr = array('Hello','World!','Beautiful','Day!');
2echo join(", ",$arr);
Angelo
14 Oct 2017
1Definition and Usage
2The join() function returns a string from the elements of an array.
3
4The join() function is an alias of the implode() function.
5
6Note: The join() function accept its parameters in either order. However, for consistency with explode(), you should use the documented order of arguments.
7
8Note: The separator parameter of join() is optional. However, it is recommended to always use two parameters for backwards compatibility.
9
10Syntax
11join(separator,array)
12  
13Example
14Join array elements with a string:
15
16<?php
17$arr = array('Hello','World!','Beautiful','Day!');
18echo join(" ",$arr);
19?>
20  
21Output:
22Hello World! Beautiful Day!
Benjamin
27 Jan 2021
1
2$array1 = [1, 5, 64, 2, 6];
3$array2 = [2, 1, 8, 3];
4
5//Method 1:
6array_filter($array1, function($_){
7    global $array2;
8  return in_array($_, $array2);
9}); // Output: [0 => 1, 3 => 2]
10
11//Method 2:
12array_intersect($array1, $array2); //Output: [0 => 1, 3 => 2]
13
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