WrongCaseMethod

A method is called with a casing that differs from its declaration. Although PHP method calls are case-insensitive at runtime, consistent casing is required for clarity and tooling support.

Example

<?php
class Formatter {
    public function formatDate(\DateTimeInterface $date): string {
        return $date->format('Y-m-d');
    }
}

$f = new Formatter();
echo $f->FormatDate(new \DateTime()); // wrong casing: should be formatDate

How to fix

Update the call site to use the exact casing from the method declaration.