php intval函数_joker6295的博客

// $a=2147483648.05555;
$a = -1;
echo intval($a); 
echo "<br/>";
echo (int) $a;
echo "<br/>";
echo floatval($a);
echo "<br/>";
echo floor(floatval($a));
echo "<br/>";
echo floor($a);
echo "<br/>";
echo(abs(intval($a)));
echo "<br/>";
echo (abs($a));
die;
输出结果
-1
-1
-1
-1
-1
1
1// $a=2147483648.05555;
$a = -1;
echo intval($a