PHP - Private Class Function/property Repeater Please!

<?php
class validate
{
    public function __construct($data,$callback)
    {
        //A bunch of script goes here, and I don't want to duplicate it
        if($callback) {
            //Use $callback function to modify $data
        }
    }
}

class controller
{
    public function savePage()
    {
        //A bunch of script goes here, and I don't want to duplicate it
        $validate=new validate(array('hello'),$this->callback);
    }
}

class controller_page1 extends controller
{
    public function callback()
    {
        //script which will be used to modify future $data
    }
}
?>

Mon Aug 24, 2020 2:41 pm

I'm using php_serial.class.php, called once

require_once("php_serial.class.php");

and call it $serial:

$serial = new phpSerial;

The above are in a global.php file that sets up the serial com parameters.

In another file, I include global.php that contains my other code to send and read from the class

In a function, I pass the class:

Function checkInput($serial){

And one in the Function:

$read = $serial->readPort();

This throws an error: "PHP Fatal error: Uncaught Error: Call to a member function readPort() on string"

If I do the $read outside of the Function, it doesn't throw the error so I assume I'm doing something wrong passing the class to the function?

<?php
class CsvToArray {
/*
	global $file;
	$file = '../Datafeeds/baseball_all.csv';
*/

public function data() {
$file = '../Datafeeds/baseball_all.csv';
$fileName = fopen($file,'r+');
$all_rows = array();
$header = fgetcsv($fileName);
while ($row = fgetcsv($fileName)) {
$games[] = array_combine($header, $row);
  
}
//print_r($games);
print_r($games[64]["Home Team"]);
}
}

$game = new CsvToArray();
$game->data();
?>

csv: https://anonymousfiles.io/vSubWgPY/

How can I get specific array values outside a class or function? About to try "File put contents" I think. That should work right? So I thought the last couple times. Or what would you suggest?. Overwritten previous attempts to share =[

Next up is seeing if I can change $file to $var to change it from other locations. Should be easy I reckon.