Question

我是PHP编程的新手。运行以下PHP代码生成URL时出现此错误。我使用PHP 5.3.5。

（！）解析错误：语法错误，意外 T_CONSTANT_ENCAPSED_STRING，期待'＆amp;'或T_VARIABLE in 第30行的C：\ wamp \ www \ test \ urlgen.php

function bg_gen_secure_uri(
    'http://demo.com/abc/secure/movie/movie-full-film_256x144-150.mp4',
    'MqG9$fso2lt7(',
    $expiry = 0,
    $allowed_countries = '',
    $disallowed_countries = '',
    $allowed_ip = '',
    $allowed_useragent = '',
    $allowed_metros = '',
    $disallowed_metros = '', $progressive_start = '', $progressive_end = '',
    $extra_params = '' )
{
      return $url;
}

如果我得到答案，我将非常感激。

Answer 1

为什么要给两个常数作为参数？

'http://demo.com/abc/secure/movie/movie-full-film_256x144-150.mp4','MqG9$fso2lt7(',

那部分是错的。使用某些东西分配，可能是这样的：

<?php
    function bg_gen_secure_uri($p1 = 'http://demo.com/abc/secure/movie/movie-full-film_256x144-150.mp4', $p2 = 'MqG9$fso2lt7(', $expiry = 0, $allowed_countries = '',$disallowed_countries = '', $allowed_ip = '', $allowed_useragent = '',
    $allowed_metros = '',
    $disallowed_metros = '', $progressive_start = '', $progressive_end = '',
    $extra_params = '')


    {

     return $url;
    }
?>

并且没有<php>标记。删除它！

Answer 2

您的函数参数必须是变量，对于默认值，您必须使用如下：

<?php
function bg_gen_secure_uri (
$ca='http://demo.com/abc/secure/movie/movie-full-film_256x144-150.mp4',
$b='MqG9$fso2lt7(', 
$expiry = 0, 
$allowed_countries = '',
$disallowed_countries = '', 
$allowed_ip = '', 
$allowed_useragent = '',
$allowed_metros = '',
$disallowed_metros = '', 
$progressive_start = '', 
$progressive_end = '',
$extra_params = ''
)

{

 return $url;

}
echo bg_gen_secure_uri();
?>

运行此PHP代码时，为什么会出现解析错误？

2 个答案: