Git lines by author

main_script.php

<?php
//git log --stat --since="2018-08-02" | grep -v vendor | grep "( \| )|(Author: )" > programmers.log 2>&1
//php main_script.php

$data = file_get_contents(__DIR__.'/programmers.log');
$data = explode("\n", $data);

$authors = [];
$currentAuthor = '';
$lines = 0;
foreach($data as $line){
    if (preg_match("/Author: (.*?) </", $line, $matches)){
        if ($currentAuthor !== $matches[1]) {
            if (!isset($authors[$currentAuthor])){
                $authors[$currentAuthor] = 0;
            }
            $authors[$currentAuthor] += $lines;
            $currentAuthor = $matches[1];
            $lines = 0;
        }
    } elseif (preg_match("/.*? \| (.*?) [\+-]/", $line, $matches)){
        $lines += $matches[1];
    }
}
if (!isset($authors[$currentAuthor])){
    $authors[$currentAuthor] = 0;
}
$authors[$currentAuthor] += $lines;
uasort($authors, function($a, $b){
    return $b <=> $a;
});
echo json_encode($authors, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);