PHP code example of tarsana / functional

1. Go to this page and download the library: Download tarsana/functional library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php.

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

tarsana / functional example snippets


use Tarsana\Functional as F;
// all functions are defined in this namespace

$incrementAll = F\map(F\plus(1));

$incrementAll([1, 2, 3]); //=> [2, 3, 4]



Tarsana\Functional as F;
use Tarsana\Functional\Stream;

// Define new Stream operations
Stream::operation('contents', 'String -> String', 'file_get_contents');

$s = Stream::of('temp.txt') // initializing the Stream with the filename
    ->contents() // Reading the content of the file using the operation we defined
    ->regReplace('/[^a-zA-Z0-9 ]/', ' ') // removing non-alphanumeric chars
    ->split(' ') // Splitting text into words
    ->filter(F\notEq('')) // removing empty words
    ->map(F\lowerCase()) // makes all words in lower case
    ->reduce(function($words, $w) {
        return F\has($w, $words)
            ? F\update($w, F\plus(1), $words)
            : F\set($w, 1, $words);
    }, []); // transform the content to an array associating each word to occurences

print_r($s->result());