<?php
var_dump(preg_replace('/[\\\]+/', '\\', 'Doctrine\DBAL'));
var_dump(preg_replace('/[\\\]+/', '\\', 'Doctrine\\DBAL'));
var_dump(preg_replace('/[\\\]+/', '\\', 'Doctrine\\\DBAL'));
var_dump(preg_replace('/[\\\]+/', '\\', 'Doctrine\\\\DBAL'));
var_dump(preg_replace('/[\\\]+/', '\\', 'Doctrine\\\\\DBAL'));
var_dump(preg_replace('/[\\\]+/', '\\', 'Doctrine\\\\\\DBAL'));
var_dump(preg_replace('/[\\\]+/', '\\', 'Doctrine\\\\\\\DBAL'));
var_dump(preg_replace('/[\\\]+/', '\\', 'Doctrine\\\\\\\\DBAL'));
var_dump(preg_replace('/[\\\]+/', '\\', 'Doctrine\\\\\\\\\DBAL'));
preferences:
28.62 ms | 402 KiB | 5 Q