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<?php
define("sc", 0);
class X
{
var $y;
function X()
{
$this->y = 123;
}
}
$b = 1;
$arr[0] = "foo";
$arr["sc"] = "boo";
$str = "bar";
$x = new X();
/*
* Simple syntax
*
* This might actually turn out to be more difficult to parse than
* "complex" syntax (which is standard syntax enclosed in {..}, where
* the first "{" must be followed by a "$".
*
* Possible variables:
* "$a" a an ident
* "${a}" a an ident
* "$a->b" a, b an ident
* "$a[b]" b an integer
* "$a[b]" b an ident (interpreted as a string)
*/
echo "a $bc\n";
echo "a ${b}c\n";
echo "a $arr[0] c\n";
echo "a $arr[sc] c\n"; // "a " . $b["x"] . " c\n"; prints "boo"
echo "a $str{0} c\n"; // Curlies are not interpreted
echo "a $arr[0]{1} c\n"; // (Again)
echo "a $x->y c\n";
echo <<<END
a $bc d
END;
echo <<<END
a ${b}c d
END;
echo <<<END
a $b[0] d
END;
echo <<<END
a $b[c] d
END;
echo <<<END
a $b->c d
END;
/*
* Complex syntax
*/
echo "a {$b} c\n";
echo "a {$arr[0]} c\n";
echo "a {$arr[sc]} c\n"; // Note: prints "foo"
echo "a {$str{0}} c\n"; // Curlies _are_ interpreted
echo "a {$arr[0]{1}} c\n";
echo "a {$arr["sc"]} c\n"; // while this prints "boo"
echo "a {$x->y} c\n";
echo <<<END
a {$b} c
END;
echo <<<END
a {$arr[0]} c
END;
echo <<<END
a {$arr[sc]} c
END;
echo <<<END
a {$arr{0}} c
END;
echo <<<END
a {$arr[0]{1}} c
END;
echo <<<END
a {$arr["sc"]} c
END;
echo <<<END
a {$x->y} c
END;
/*
* PHP will bark on this, but we don't
*/
echo "a $b[ 0 ] c\n"; // We don't generate an error
?>
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