Aggregate multiple files in one (Quick and dirty)

aggregator.php

<?php
$pathname = __DIR__."/filestoaggregate";
$tab[0] = array("firstname","lastname","gender","email","code","newsletter","variable","giftcode");
$separator = "=";

$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($pathname), RecursiveIteratorIterator::SELF_FIRST); 

$i = 1;

foreach($iterator as $item) { 

  $j = 0;
	if (in_array(basename($item), array(".", "..", ".DS_Store"))) {
		continue;
	}
	$fic=fopen($item, "r");

	while(!feof($fic))
	{
	$ligne= fgets($fic,1024);
	$ligne = str_replace(CHR(13).CHR(10),"",$ligne); 
	$pos = strpos($ligne, "user");
	if($pos == false){
		$array = explode($separator, $ligne);
		$chaine = str_replace('"', '', $array[1]);
	    $tab[$i][$j] = $chaine;
	}
	$j++;
	}
	
$i++;
fclose($fic) ; 
}

$fp = fopen('output.csv', 'w');
foreach ($tab as $fields) {
    fputcsv($fp, $fields);
}
fclose($fp);