Online PHP editor | output for 5RII3

<?php const ONE1 = 1 +1; const ONE2 = 34 - 34; const ONE3 = true; const ONE4 = 1 % 1; const ONE5 = !true; const ONE6 = 1 ~ 1; const ONE7 = 1 | 1; const ONE8 = 1 & 1; const ONE9 = 1 ^ 1; const ONE10 = 1 << 1; const ONE11 = 1 >> 1; const ONE12 = 1 . 1; const ONE13 = 1 ?: 1; const ONE14 = 1 <= 1; // const ONE15 = '' => 1; const ONE16 = 1 == 1; const ONE17 = 1 != 1; const ONE18 = 1 < 1; const ONE19 = 1 > 1; const ONE20 = 1 === 1; const ONE21 = (1 !== 1); const ONE22 = 1 && 1; const ONE222 = 1 and 1; const ONE233 = 1 or 1; const ONE24 = 1 xor 1; echo 1 and 1;