Question

所以我从codeacademy获得了这段代码。假设结果是头部，它假设将php，html和css组合在一个while循环中随机输出一个硬币风格的div。然而，它没有工作，所有的PHP都在显示，我不知道为什么。

＆＃13;

.coin {
    height: 50px;
    width: 50px;
    border-radius: 25px;
    background-color: grey;
	text-align: center;
	font-weight: bold;
	font-family: sans-serif;
	color: white;
	margin: 10px;
	display: inline-block;
	line-height: 50px;
	font-size: 20px;
}

＆＃13;

<!DOCTYPE html>
<html>
    <head>
    	<link type='text/css' rel='stylesheet' href='style.css'>
		<title>More Coin Flips</title>
	</head>
	<body>
	<p>We will keep flipping a coin as long as the result is heads!</p>
	<?php
	$flipCount = 0;
	do {
		$flip = rand(0,1);
		$flipCount ++;
		if ($flip){
			echo "<div class="coin">H</div>";
		}
		else {
			echo "<div class="coin">T</div>";
		}
	} while ($flip);
	$verb = "were";
	$last = "flips";
	if ($flipCount == 1) {
		$verb = "was";
		$last = "flip";
	}
	echo "<p>There {$verb} {$flipCount} {$last}!</p>";
	?>
    </body>
</html>

＆＃13;

Answer 1

问题是关闭＆＃34; div＆＃34; ...

附近的while循环中的引号

正确的PHP将是：

<?php
$flipCount = 0;
do {
    $flip = rand(0,1);
    $flipCount ++;
    if ($flip){
        echo "<div class='coin'>H</div>";
    }
    else {
        echo "<div class='coin'>T</div>";
    }
} while ($flip);
$verb = "were";
$last = "flips";
if ($flipCount == 1) {
    $verb = "was";
    $last = "flip";
}
echo "<p>There {$verb} {$flipCount} {$last}!</p>";
?>

请注意'coin'周围的单引号。

Answer 2

<!DOCTYPE html>
<html>
<head>
    <link type='text/css' rel='stylesheet' href='style.css'>
    <title>More Coin Flips</title>
</head>
<body>
<p>We will keep flipping a coin as long as the result is heads!</p>
<?php
$flipCount = 0;
do {
    $flip = rand(0,1);
    $flipCount ++;
    if ($flip){
        echo '<div class="coin">H</div>';
    }
    else {
        echo '<div class="coin">T</div>';
    }
} while ($flip);
$verb = "were";
$last = "flips";
if ($flipCount == 1) {
    $verb = "was";
    $last = "flip";
}
echo "<p>There {$verb} {$flipCount} {$last}!</p>";
?>
</body>
</html>

echo '<div class="coin">H</div>';

中的qoute不匹配

Answer 3

使用： -

string

为什么这个php不起作用？

3 个答案: