问题描述
好吧，至少我的PHP是可怕的。我继承了一个应用程序，并且不得不修复7年前写过它的人的错误。当我运行该页面时，没有返回，所以我检查了日志以查看错误，这里是我得到的：
以下是代码：
<？
ob_start（）;
global $ siteRoot ='/ httpdocs /';
global $ reportRoot ='/ reports /';
包括（'billing1.php'）;
$ date ='清除报告：'.date（'M d，Y \a\ g：i a'）; ？>
< html>
< head>< title><？= $ date？>< / title>< / head>
< body>
$ account = new billing（）;
$ ftresult = $ account-> purge（）;
新的dBug（$ ftresult）;
回显成功写入;
？>
< / body>
$ filename =purge_report_。日期（'y.m.d_\a\t_g_i_a'）。 .HTML;
$ loc = $ reportRoot。 purge_reports /;
$ f = $ loc。 $文件名;
$ fp = @fopen（$ f，'w'）;
@fwrite（$ fp，ob_get_contents（））;
@fclose（$ fp）;
ob_end_flush（）;
？>
是应该由其自身使用的关键字。它不能与任务合并。所以，把它砍掉：
global $ x;
$ x = 42;
另外，正如提及， global 用于函数内部，用于访问外部变量范围。因此，使用 global 是没有意义的。
另一个提示（尽管它不会真的有帮助你有语法错误）：将以下行添加到主文件的顶部，以帮助调试（ Ok, so my PHP is, to say the least, horrible. I inherited an application and am having to fix errors in it from someone that wrote it over 7 years ago. When I run the page, there is no return, so I checked the logs to see the error and here is what i get: Here is the code: Also, as Zenham mentions, Another tip (though it will not really help you with syntax errors): add the following line to the top of the main file, to help debugging (documentation): 这篇关于设置全局变量时出现PHP语法错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！
error_reporting（E_ALL）;
<?
ob_start();
global $siteRoot = '/httpdocs/';
global $reportRoot = '/reports/';
include('billing1.php');
$date='Purge report for: ' .date('M d, Y \a\t g:i a'); ?>
<html>
<head><title><?=$date?></title></head>
<body>
<?php
$account = new billing();
$ftresult = $account->purge();
new dBug($ftresult);
echo "successfully wrote";
?>
</body>
<?
$filename = "purge_report_" . date('y.m.d_\a\t_g_i_a') . ".html";
$loc = $reportRoot . 'purge_reports/';
$f = $loc . $filename;
$fp = @fopen($f, 'w');
@fwrite($fp, ob_get_contents());
@fclose($fp);
ob_end_flush();
?>
global is a keyword that should be used by itself. It must not be combined with an assignment. So, chop it:global $x;
$x = 42;
global is used inside functions, to access variables in an outer scope. So the use of global as it is presented makes little sense.error_reporting(E_ALL);