写出下面PHP代码运行的输出结果____。$a = -016;$b = 0x16;$c = $a + $b;echo $c;
8
举一反三
- 写出下面PHP代码运行的输出结果____。$x = 456;$s = 'abc\$\'123 $x 789';echo $s;
- 写出下面PHP代码运行的输出结果____。$a = true;$b = -$a;$c = $b + "12.6p";echo $c;
- 写出下面PHP代码运行的输出结果___。echo 'Testing ' . 1 + 2 . '45';
- 写出下面PHP代码运行的输出结果___。$s=0; $i=0;while($i++<10) { $s+=$i;}echo $s;
- 写出下面PHP代码运行的输出结果____。$a = -1;$b = (bool)$a;$c = $b + (int)"12.6p";echo $c;
内容
- 0
写出下面PHP代码运行的输出结果____。$price = 12.567;echo sprintf("%'a5.2d", $price);
- 1
写出下面PHP代码运行的输出结果___。$s = 0; $a = 60;if($a >= 50) $s = 100 + $a;$s = 100;echo $s;
- 2
写出下面PHP代码运行的输出结果____。$email="user@example.com";$len = strlen($email);$p = strpos($email, "@");echo substr($email, $p+1), "-", substr($email, 0, -($len-$p));
- 3
写出下面PHP代码运行的输出结果____。$arr1 = array("img12.png", "img10.png", "img2.png", "img1.png");usort($arr1, "strnatcmp");echo $arr1[2];
- 4
下面代码运行后，其输出结果应该为（）<;?php$a="PHP";function show(){$a="MySQL";global $a;echo $a;}echo $a;show();?>; A: PHP B: MySQL C: PHPPHP D: PHPMySQL