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run code in 300+ PHP versions simultaneously
<?php var_dump('Zend\I18n' === 'Zend\\I18n');
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.4 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.13
bool(true)

preferences:
90.16 ms | 407 KiB | 5 Q