PHP里打印怎么一会要双引号一会不要。打印文字就需要,这里又不要了?
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>php语法</title>
</head>
<body>
<p>
<?php echo 23+6;?>
</p>
</body>
</html>
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>php语法</title>
</head>
<body>
<p>
<?php echo 23+6;?>
</p>
</body>
</html>
2017-02-27
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