3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $mask = 125; $blocks = (int)($mask / 16); $b = unpack('n*', pack('n*', ...array_fill(0, $blocks, 0xffff), ...array_pad([~((2 ** (16 - ($mask % 16))) - 1) & 0xffff], 8 - $blocks, 0))); foreach ($b as $block) { printf("%016b\n", $block); }
based on Vno2n
Output for 5.6.8 - 7.2.0
1111111111111111 1111111111111111 1111111111111111 1111111111111111 1111111111111111 1111111111111111 1111111111111111 1111111111111000
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.5.35
Parse error: syntax error, unexpected '.' in /in/emtal on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '.' in /in/emtal on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/emtal on line 5
Process exited with code 255.