simple_csv_reader.php

<?php
$options = array('colDelimiter' => ',');

csv('./test.csv', $options, function($row){
  var_dump($row);
});

function csv($fp, $options = array(), $callback = null){
    if (is_string($fp)){
      $fp = fopen($fp, 'r');
    }
    if (is_callable($options) && is_null($callback)){
      $callback = $options;
      $options = array();
    }

    $count = 0;
    $header = null;
    $colDelimiter = ',';
    $seek = 1000;

    extract($options);
    
    while (($data = fgetcsv($fp, $seek, $colDelimiter)) !== FALSE) {
      $data = array_map('trim', $data);
      if (is_null($header)){
        $header = $data;
        continue;
      }
      $assoc = array();
      foreach ($header as $i => $value){
        if (isset($data[$i])){
          $assoc[$value] = $data[$i];
        }else{
          $assoc[$value] = '';
        }
      }
      
      if ($callback && is_callable($callback)){
        $callback($assoc);
      }
    }
    fclose($fp);
}