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@ 2021-12-07T18:18:13Z

<?php

// Simulated file data
$data = <<<TAG
Hunky Bill's Big Perogie / Pierogi Maker
9
4
10
5
5
1
2
1
TAG;

// This allows us to create a stream pointing to a string.
// This is only done to match the OP's code
$csv_file = 'data://text/plain,'.$data;

// We'll store items here temporarily
$csv_items = [];

if (($fp = fopen($csv_file, 'r'))) {
    while (!feof($fp)) {

        $item = fgets($fp);

        // Sanity check that we received something
        if (false === $item) {
            break;
        }

        // Trim both sides (unless you have a need for whitespace)
        $item = trim($item);

        // If we still have more than just an empty string
        if ($item) {
            // Append, optionally with quotes
            $csv_items[] = '"'.$item.'"';
        }
    }
    fclose($fp);
}

// Create final string
$csv_string = implode(',', $csv_items);

var_dump($csv_string);

Output for git.master, git.master_jit, rfc.property-hooks: string(75) ""Hunky Bill's Big Perogie / Pierogi Maker","9","4","10","5","5","1","2","1""

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2022-12-01 RFC: Property hooks - included in PHP 8.4
2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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