3v4l.org

run code in 500+ PHP versions simultaneously
<?php $string = ' '; $result = sscanf($string, '%c%n', $char, $offset); var_dump($result, $char, $offset); var_dump(sscanf($string, '%3c%n'));
Output for 4.3.2 - 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 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
int(2) string(0) "" int(0) array(2) { [0]=> string(0) "" [1]=> int(0) }
Output for 4.3.0 - 4.3.1
int(2) string(0) "" string(0) "" array(2) { [0]=> string(0) "" [1]=> int(0) }

preferences:
59.1 ms | 2746 KiB | 4 Q