为什么这个PHP代码不起作用？ （500内部服务器错误）

Question

我根本不懂php。我在wordpress主题中使用了以下代码，但它不起作用。它出什么问题了？

ICL_LANGUAGE_CODE - 返回en或ro（WPML）

<?php 
$lang = ICL_LANGUAGE_CODE;
if ($lang == "en" ) {
   echo "L<span class="grey">ocal Pioneer</span> <br /> in <span class="grey"> slow fashion</span>";
}
else { 
   echo "P<span class="grey">ionier local </span> <br /> în<span class="grey"> slow fashion</span>";
} 
?> 

Answer 1

问题在于双引号。

使用单引号，这样您就不必转义双引号（使用echo时）

<?php
  $lang = ICL_LANGUAGE_CODE;
  if ($lang == "en" ) {
     echo 'L<span class="grey">ocal Pioneer</span> <br /> in <span class="grey"> slow fashion</span>';
  }
  else {
     echo 'P<span class="grey">ionier local </span> <br /> în<span class="grey"> slow fashion</span>';
    } 
 ?> 

Answer 2

您在双引号字符串中使用双引号。

将你的回声改为：

echo "L<span class='grey'>ocal Pioneer</span> <br /> in <span class='grey'> slow fashion</span>";

和

echo "P<span class='grey'>ionier local </span> <br /> în<span class='grey'> slow fashion</span>";

（注意在双引号内使用单引号。）

Answer 3

你应该更换doble quote arround＆＃34; grey＆＃34; 试试这个：

<?php

            $lang = ICL_LANGUAGE_CODE;

             if ($lang == "en" ) {
                echo "L<span class='grey'>ocal Pioneer</span> <br /> in <span class='grey'> slow fashion</span>";
             }
             else {
                echo "P<span class='grey'>ionier local </span> <br /> în<span class='grey'> slow fashion</span>";
             } 



            ?> 

Answer 4

问题是由于使用了引号＆＃34;。

更改

             if ($lang == "en" ) {
                echo "L<span class='grey'>ocal Pioneer</span> <br /> in <span class='grey'> slow fashion</span>";
             }
             else {
                echo "P<span class='grey'>ionier local </span> <br /> în<span class='grey'> slow fashion</span>";
             } 

到

             if ($lang == "en" ) {
                echo "L<span class="grey">ocal Pioneer</span> <br /> in <span class="grey"> slow fashion</span>";
             }
             else {
                echo "P<span class="grey">ionier local </span> <br /> în<span class="grey"> slow fashion</span>";
             }