"
. "Line Number " . __LINE__ . "
"
. "Version " . phpversion() . "
"
. "OS " . php_uname() . "
";
$a = -100;
$b = 50;
$c = 30;
echo "\$a = $a
"
. "\$b = $b
"
. "\$c = $c
";
echo "\$a + \$b = " . ($a + $b) . "
"
. "\$a - \$b = " . ($a - $b) . "
"
. "\$a * \$b = " . ($a * $b) . "
"
. "\$a / \$b = " . ($a / $b) . "
"
. "\$a % \$b = " . ($a % $b) . "
";
echo "Calc a++ for " . ++$a . "
"
. "Calc b-- for " . --$b . "
";
$a = true;
$b = true;
$c = false;
if ($a == $b && $c) {
echo "TRUE
";
} else {
echo "FALSE
";
}
$b = 100;
var_dump($a + $b);
echo "
";
$b = false;
var_dump($a + $b);
echo "
";
$a = "abc100";
$b = 100;
var_dump($a . $b);
echo "
";