A basic CSV loader class for PHP

CSVLoad.php

<?php
class CSVLoad {
 
	private $raw_data;
	private $data_key;
	private $lines;
	private $position;

	public function __construct($filename) {
		$this->raw_data = array_map('str_getcsv', file($filename));
		$this->data_key = $this->raw_data[0];
		$this->lines = sizeof($this->raw_data) - 1;
		$this->position = 0;
	}

	public function getRaw() {
		return $this->raw_data;
	}

	public function getKey() {
		return $this->data_key;
	}

	public function getLine($index) {
		return $this->raw_data[$index+1];
	}

	public function hasNext() {
		if ($this->position >= $this->lines) {
			return false;
		}
		return true;
	}

	public function getNext() {
		if ($this->position >= $this->lines) return -1;
		++$this->position;
		$tmp_data = [];
		for ($i = 0; $i < sizeof($this->data_key); $i++) {
			$tmp_data[$this->data_key[$i]] = $this->raw_data[$this->position][$i];
		}
		return $tmp_data;
	}

}

?>

LoadPipeAsCSV.php

<?php
require_once "CSVLoad.php";
class LoadPipeAsCSV extends CSVLoad {
 
	public function __construct($filename, $fields) {

        $tmpfile = tmpfile();

        $csvstr = "";

        // Insert field names
        foreach ( $fields as &$tmp) {
            $csvstr = $csvstr . $tmp . ",";
        }

        // Distinguish the fields as its own line and remove trailing comma
        $csvstr = substr($csvstr, 0, -1) . "\n";

        // Load the contents with | replaced with ,
        if ($file = fopen($filename, "r")) {
            while(!feof($file)) {
                $line = preg_replace('~[\r\n]+~', '', str_replace("|", ",", fgets($file)));
                if ($line == "") break;
                $csvstr = $csvstr . $line . ",\n";
            }
            fclose($file);
        }

        fwrite($tmpfile, $csvstr);
        
        parent::__construct(stream_get_meta_data($tmpfile)['uri']);
        fclose($tmpfile);
	}

}

?>