File Name Matches Type (ARCH7005)

Key php.naming.file-name-matches-type · Severity info · Category naming

PSR-4 autoloading requires the file name to match the single top-level type it declares. A mismatch both breaks loading and makes the file hard to locate.

Incorrect

invoice.php

<?php
class PaymentProcessor
{
    public function charge(int $amount): bool
    {
        return true;
    }
}

Correct

PaymentProcessor.php

<?php
class PaymentProcessor
{
    public function charge(int $amount): bool
    {
        return true;
    }
}

Fix

Rename the file to match the primary type it declares (PaymentProcessor.php).