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<?php
if ($value === TRUE || $other === FALSE) {
}

if ($value === TRUE OR $other === FALSE) {
}

if ($value === TRUE && $other === FALSE) {
}

if ($value === TRUE and $other === FALSE) {
}

if ($one === TRUE && ($two === TRUE || $three === TRUE)) {
}

if ($one === TRUE AND ($two === TRUE or $three === TRUE)) {
}

if ($a ^ $b) {
}

if ($a xor $b) {
}

if ($a XOR $b) {
}
?>