Count the total number of lines in files in a directory.

lcdir.php

#!/usr/bin/env php
<?php
    // Konfiguration
    $dir     = NULL; // Mapp du vill räkna rader ur
    $verbose = TRUE; // visa antal rader för varje fil
    
    /* Arbetande kod
    -------------------------------------------------------------------------*/
    $path = isset($argv[1]) ? $argv[1] : (is_null($dir) ? '.' : $dir);
    $path = realpath($path);
    
    // Gå igenom varje mapp rekursivt
    $iter  = new RecursiveDirectoryIterator($path);
    $iiter = new RecursiveIteratorIterator($iter);
    $files = array();
    foreach ($iiter as $filename => $obj)
    {
        $files[$filename] = countLines($filename);
    }
    
    // Visa lite extra info
    if ($verbose)
    {
        asort($files, SORT_NUMERIC);
        array_map('show', array_keys($files), array_values($files));
        println(); 
    }
    
    // Summan av antalet rader
    $sumlines = array_reduce($files, 'add', 0);
    println("{$path}: {$sumlines} rader.");
    
    /* Hjälpfunktioner
    -------------------------------------------------------------------------*/
    function countLines($filepath)
    {
        $fp = fopen($filepath, 'r');
        $n  = 0;
        while (fgets($fp)) { ++$n; }
        fclose($fp);
        return $n;
    }
    
    function println($str = "")
    {
        print $str . "\n";
    }
    
    function show($path, $n = 0)
    {
        println("{$n}\t{$path}");
    }
    
    function add($x = 0, $y = 0)
    {
        return $x + $y;
    }