将viewport标记添加到header.php会导致php错误 - Adding viewport tag to header.php causes php error

Adding viewport tag to header.php causes php error

本文关键字：php 错误 header viewport 添加 | 更新日期: 2023-09-27

我使用的是一个php脚本，该脚本有一个带有正常网页标题信息的文件header.php。但是，当我添加视口标记时，它会抛出一个错误。

header.php：

<?php
/*
UserCake Version: 2.0.2
http://usercake.com
*/
echo "
<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Transitional//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd'>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>  
<meta http-equiv='Content-Type' content='text/html; charset=utf-8' />
<title>".$websiteName."</title>
<link href='".$template."' rel='stylesheet' type='text/css' />
<script src='models/funcs.js' type='text/javascript'>
</script>
</head>";
?>

返回错误：

Parse error: syntax error, unexpected T_STRING, expecting ',' or ';' in /homepages/30/d332080598/htdocs/azotusorg/usercake/models/header.php on line 10

谢谢你在这方面的帮助！

此处没有转义双引号

<?php
echo "
 <!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Transitional//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd'>
 <html xmlns='http://www.w3.org/1999/xhtml'>
 <head>
 <meta name='"viewport'" content='"width=device-width, initial-scale=1.0'"/>  
 <meta http-equiv='Content-Type' content='text/html; charset=utf-8' />
 <title>".$websiteName."</title>
 <link href='".$template."' rel='stylesheet' type='text/css' />
 <script src='models/funcs.js' type='text/javascript'>
 </script>
 </head>";
?>

或使用单引号

<?php
echo "
 <!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Transitional//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd'>
 <html xmlns='http://www.w3.org/1999/xhtml'>
 <head>
 <meta name='viewport' content='width=device-width, initial-scale=1.0'/>  
 <meta http-equiv='Content-Type' content='text/html; charset=utf-8' />
 <title>".$websiteName."</title>
 <link href='".$template."' rel='stylesheet' type='text/css' />
 <script src='models/funcs.js' type='text/javascript'>
 </script>
 </head>";
?>