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<?php
function foo($a, $b) {
return $a * 2;
}
function baz($a, $b) {
echo "baz({$a});";
}
function bar($a, $b) {
$x = $b;
for ($i = 0; $i <$a; $i++) {
$x += $a * $i;
}
return $x;
}
function foobar($a, &$b) {
return (preg_match('/foo/', $a, $b) !== 0);
}
class Foo {
function barfoo($a, $b) {
// Empty body means interface method in many cases.
}
}