PHP array_reduce() Function
October 29, 2020
Hello dear readers! welcome back to another section of our tutorial on PHP. In this tutorial, we will be studying about the PHP Function array_reduce().
The PHP array_reduce() function applies repeatedly the callback function to the elements of the array, so as to reduce the array to a single value.
The PHP array_reduce() function applies repeatedly the callback function to the elements of the array, so as to reduce the array to a single value.
Syntax
Following below is the syntax to use this function -
array_reduce ( $array, callback $function [, int $initial] );
Parameter Details
Sr.No | Parameter & Description |
---|---|
1 | array(Required) It specifies an array. |
2 | function(Required) This a callback function. |
3 | initial(Optional) It specifies the initial value to send to the function. |
Return Value
This function returns a reduced array.
Example
Try out the below example -
<?php function call_back_function($v1,$v2) { return $v1 . "-" . $v2; } $input = array("a"=>"banana","b"=>"apple","c"=>"orange"); print_r(array_reduce($input, call_back_function)); print_r("<br />"); print_r(array_reduce($input, call_back_function, 10)); ?>
Output
When the above code is executed, it will produce the following result -
-banana-apple-orange 10-banana-apple-orange
Alright guys! This is where we are rounding up for this tutorial post. In our next tutorial guide, we are going to be discussing about the PHP array_reverse() Function.
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Feel free to ask your questions where necessary and i will attend to them as soon as possible. If this tutorial was helpful to you, you can use the share button to share this tutorial.
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Thanks for reading and bye for now.