Missing cleanup pattern (ARCH7082)

Key php.performance.dispose-pattern · Severity info · Category performance

If a class holds a closeable resource as a field but offers no cleanup method to release it, owned resources are never freed. Add a close method.

Incorrect

<?php
class Logger
{
    private $fh;
    public function __construct(string $path)
    {
        $this->fh = fopen($path, 'a');
    }
}

Correct

<?php
class Logger
{
    private $fh;
    public function __construct(string $path)
    {
        $this->fh = fopen($path, 'a');
    }
    public function close(): void
    {
        fclose($this->fh);
    }
}

Fix

Give classes that hold closeable fields an explicit close() method (or __destruct) that releases those resources.