flac-to-mp3/flac-to-ogg.php

<?php
  $flacs = shell_exec('find "$(pwd)" -type f -name "*.flac"');
  $flacs_ex = preg_split("/\\r\\n|\\r|\\n/", $flacs);
  $flacs_total = sizeof($flacs_ex);
  $playlist = 'playlist.txt';

  for($i = 0; $i < $flacs_total - 1; $i++){

    $flac = $flacs_ex[$i];
    $ogg = str_replace('.flac', '.ogg', $flac);

    # Generating the list
    file_put_contents($playlist, $ogg . PHP_EOL, FILE_APPEND | LOCK_EX);
    # The conversion command
    shell_exec('ffmpeg -i "' . $flac . '" "' . $ogg . '"');
  }
?>