ptarjan
39 linhas
688 B
PHP
39 linhas
688 B
PHP
<?php
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function f() {
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$x = 204; // 11001100 in binary
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$y = 170; // 10101010 in binary
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echo ($x ^ $y); // 01100110 in binary
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echo "\n";
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echo ($x & $y);
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echo "\n";
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echo ($x | $y);
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echo "\n";
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echo (~$x);
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echo "\n";
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}
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f();
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// Pairwise probe.
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function probe($l, $r) {
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echo "-------\n";
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echo "left: "; var_dump($l);
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echo "right: "; var_dump($r);
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$v = ($l & $r); var_dump($v);
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$v = ($l | $r); var_dump($v);
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$v = ($l ^ $r); var_dump($v);
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$v = (~$l); var_dump($v);
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}
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function main() {
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$i = 0x3;
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$data = array(15, "7", "not an int. at all.");
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foreach ($data as $left) {
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foreach ($data as $right) {
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probe($left, $right);
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}
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}
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}
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main();
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