3v4l.org

run code in 300+ PHP versions simultaneously
<?php $php = '<?php $var = readonly ();'; foreach (token_get_all($php) as $token) { if (is_array($token)) { echo token_name($token[0]) . "\n"; } else { echo $token . "\n"; } }
Output for 8.2.0 - 8.2.23, 8.3.0 - 8.3.11
T_OPEN_TAG T_VARIABLE T_WHITESPACE = T_WHITESPACE T_READONLY T_WHITESPACE ( ) ;
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.29
T_OPEN_TAG T_VARIABLE T_WHITESPACE = T_WHITESPACE T_STRING T_WHITESPACE ( ) ;
preferences:
77.63 ms | 410 KiB | 5 Q