3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo_bar() { $phrase = "hello world"; $string = ""; if (0 == 0) { $string .= <<<EOF <b>{$phrase}</b> EOF; if (0 == 0) { $string .= <<<EOF <i> of mine</i> EOF; } /* comment out to see the error $string .= <<<EOF <u> - the END</u> EOF; */ } return $string; } foo_bar();
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 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
preferences:
286.42 ms | 406 KiB | 461 Q