3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php const FLAG_1 = 0b0001; // 1 const FLAG_2 = 0b0010; // 2 const FLAG_3 = 0b0100; // 4 const FLAG_4 = 0b1000; // 8 // Can you see the pattern? ;-) function show_flags ($flags) { if ($flags & FLAG_1) { echo "You passed flag 1!<br>\n"; } if ($flags & FLAG_2) { echo "You passed flag 2!<br>\n"; } if ($flags & FLAG_3) { echo "You passed flag 3!<br>\n"; } if ($flags & FLAG_4) { echo "You passed flag 4!<br>\n"; } } show_flags(2 | 1 | FLAG_3); echo 4 == FLAG_2;
based on MTdRY
Output for 5.4.8 - 7.2.0
You passed flag 1!<br> You passed flag 2!<br> You passed flag 3!<br>
Output for 5.3.18 - 5.3.29
Parse error: syntax error, unexpected T_STRING, expecting ',' or ';' in /in/7VXvH on line 3
Process exited with code 255.