php-phar vs. shell tar

php-phar.php

<?
addToArchive();
function addToArchive() {
  $path = '/home/fer/SocialCrawler/';
  $archiveDir = '/tmp/phar/';
  $files = glob($path."*.json", GLOB_NOSORT);
  //Create array of archives to compress to.
  $archives = array();
  foreach(array_map("stripPath", $files) as $row) {
    $key = strstr($row,'_',true);
    if(!array_key_exists($key, $archives))
      $archives[$key] = array();
    $archives[$key][] = $row;
  }  
  foreach ($archives as $archive => $list) {
    $archive = $archiveDir.$archive;
    print "Creating $archive.tar".PHP_EOL;
    get_execution_time(true);
    $myPhar = new PharData($archive.'.tar',0);
    $myPhar->startBuffering();
    foreach($list as $file)
      $myPhar->addFile($path.$file, $file);
    $myPhar->stopBuffering();
    $myPhar = null;
    print count($list) . " files added in: ". get_execution_time(true) ."sec".PHP_EOL;
  }
}

function stripPath($item) {
  return substr(strrchr("/".$item, "/"), 1);
}

/**
 * get execution time in seconds at current point of call in seconds
 * @return float Execution time at this point of call
 */
function get_execution_time($delta = false) {
  static $microtime_start = null;
  static $microtime_delta = null;
  if($microtime_start === null) {
    $microtime_start = microtime(true);
    $microtime_delta = $microtime_start;
    return 0.0;
  }
  if($delta) {
    $delta = microtime(true) - $microtime_delta;
    $microtime_delta = microtime(true);
    return $delta;
  }
  $microtime_delta = microtime(true);
  return microtime(true) - $microtime_start;
}
?>

shell-tar.php

<?
addToArchive();
function addToArchive() {
  $path = '/home/fer/SocialCrawler/';
  $archiveDir = '/tmp/phar/';
  $files = glob($path."*.json", GLOB_NOSORT);
  //Create array of archives to compress to.
  $archives = array();
  foreach(array_map("stripPath", $files) as $row) {
    $key = strstr($row,'_',true);
    if(!array_key_exists($key, $archives))
      $archives[$key] = array();
    $archives[$key][] = $row;
  }
  foreach ($archives as $archive => $list) {
    $archive = $archiveDir.$archive;
    print "Creating $archive.tar".PHP_EOL;
    get_execution_time(true);
    $fname = implode(" ", $list);
    $tarCmd = "tar ". (file_exists($archive.".tar") ? "-rf ":"-cf ") .$archive.".tar  -C $path $fname";
    exec($tarCmd." 2>&1", $result, $status);
    print count($list) . " files added in: ". get_execution_time(true) ."sec".PHP_EOL;
  }
}

function stripPath($item) {
  return substr(strrchr("/".$item, "/"), 1);
}

/**
 * get execution time in seconds at current point of call in seconds
 * @return float Execution time at this point of call
 */
function get_execution_time($delta = false) {
  static $microtime_start = null;
  static $microtime_delta = null;
  if($microtime_start === null) {
    $microtime_start = microtime(true);
    $microtime_delta = $microtime_start;
    return 0.0;
  }
  if($delta) {
    $delta = microtime(true) - $microtime_delta;
    $microtime_delta = microtime(true);
    return $delta;
  }
  $microtime_delta = microtime(true);
  return microtime(true) - $microtime_start;
}
?>