3v4l.org

run code in 300+ PHP versions simultaneously
<?php // This should print '3' $text = '3 '; echo $text[0] . "\n"; // This should print '3' too $text = '33'; echo $text[0] . "\n"; // This should be '4' echo $text[0] + 1 . "\n"; // What about this ? $text = '9'; echo $text[0] + 1 . "\n";
Output for 5.6.38, 7.1.0 - 7.1.23, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
3 3 4 10

preferences:
170.94 ms | 403 KiB | 169 Q