check-classes.php

<?php

function getAllParents(ReflectionClass $refl):array
{
    return array_unique(iterator_to_array(getAllParentsIt($refl)));
}
function getAllParentsIt(ReflectionClass $refl):Iterator
{
    if($parent = $refl->getParentClass()) {
        yield $parent;
        yield from getAllParentsIt($parent);
    }
    foreach($refl->getInterfaces() as $interface) {
        yield $interface;
        yield from getAllParentsIt($interface);
    }
    foreach($refl->getTraits() as $trait) {
        yield $trait;
        yield from getAllParentsIt($trait);
    }
}

foreach(get_declared_classes() as $class) {
    $refl = new ReflectionClass($class);
    foreach($refl->getMethods(ReflectionMethod::IS_PUBLIC | ReflectionMethod::IS_PROTECTED) as $method) {
        $methodName = $method->name;
        foreach($method->getParameters() as $paramPosition => $param) {
            $childName = $param->name;
            foreach(getAllParents($refl) as $parent) {
                $parentClass = $parent->name;
                // Skip internal classes with inconsistent names
                if($parentClass === ArrayAccess::class) continue;
                if($parentClass === SeekableIterator::class) continue;
                if($parentClass === SplFileInfo::class) continue;
                if($parent->hasMethod($method->name)) {
                    $parentMethod = $parent->getMethod($methodName);
                    if($parentMethod->isPrivate()) {
                        // Private method will not be called even though it has the same name, skip
                        continue;
                    }
                    if($parentMethod->getNumberOfParameters() <= $paramPosition) {
                        // The parameter in the child does not exist in the parent, skip
                        continue;
                    }
                    // Assert that the parameter of parent at position $paramPosition has the same name $canonicalName
                    $parentParameter = $parentMethod->getParameters()[$paramPosition];
                    $parentName = $parentParameter->name;
                    if($parentName !== $childName)
                    {
                        echo "Parameter $childName at position $paramPosition of $class:$methodName does not match parameter $parentName at position $paramPosition of $parentClass:$methodName".PHP_EOL;
                    }
                }
            }
        }
    }
}