<?php

$event->getForm()->addError(new FormError('very_long_error_message', 'very_long_error_message', [
    '{{ variable }}' => $var . 'toto',
    '{{ limit }}' => round($this->veryLongVarName / 1_000_000) . 'M',
]));

$event->getForm()->addError(new FormError('very_long_error_message', [
    '{{ variable }}' => $var . 'toto',
    '{{ limit }}' => round($this->veryLongVarName / 1_000_000) . 'M',
]));

$event
    ->getForm()
    ->addError(new FormError('very_long_error_message', 'very_long_error_message', [
        '{{ variable }}' => $var . 'toto',
        '{{ limit }}' => round($this->veryLongVarName / 1_000_000) . 'M',
    ]));

$event
    ->getForm()
    ->addError(new FormError('very_long_error_message', [
        '{{ variable }}' => $var . 'toto',
        '{{ limit }}' => round($this->veryLongVarName / 1_000_000) . 'M',
    ]));

$event
    ->getForm()
    ->addError(new FormError([
        '{{ variable }}' => $var . 'toto',
        '{{ limit }}' => round($this->veryLongVarName / 1_000_000) . 'M',
    ]));
