php代码问题 $a = 3; $b = 5; if ($a=5 || $b = 7) { $a++; $b++; } echo $a ." " .$b; 结果 1 6 why
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/30 16:13:19
![php代码问题 $a = 3; $b = 5; if ($a=5 || $b = 7) { $a++; $b++; } echo $a .](/uploads/image/z/12841305-33-5.jpg?t=php%E4%BB%A3%E7%A0%81%E9%97%AE%E9%A2%98+%24a+%3D+3%3B+%24b+%3D+5%3B+if+%28%24a%3D5+%7C%7C+%24b+%3D+7%29+%7B+%24a%2B%2B%3B+%24b%2B%2B%3B+%7D+echo+%24a+.%22+%22+.%24b%3B+%E7%BB%93%E6%9E%9C+1+6+why)
php代码问题 $a = 3; $b = 5; if ($a=5 || $b = 7) { $a++; $b++; } echo $a ." " .$b; 结果 1 6 why
php代码问题 $a = 3; $b = 5; if ($a=5 || $b = 7) { $a++; $b++; } echo $a ." " .$b; 结果 1 6 why
php代码问题 $a = 3; $b = 5; if ($a=5 || $b = 7) { $a++; $b++; } echo $a ." " .$b; 结果 1 6 why
$a = 3; //赋值
$b = 5;
if ($a=5 || $b = 7)//运算符优先级 逻辑运算符(||)高于赋值运算符(=),即$a = (bool)ture;$b=5;
{
$a++; //$a++ 值不变为1
$b++; //$b++值为5+1
}
echo $a . " " . $b;
var_dump($name);可以看到变量类型.