Question

为什么这个不起作用？任何人都知道..我知道有一些小事，但已经浪费了半个多小时。

                <?php if(1){ ?>
              <?php
                    echo "
                      <ul class=\"nav navbar-nav navbar-right\">
                        <li><a href=\"#\" data-toggle=\"modal\" data-target=\"#loginModal\"><span class=\"glyphicon glyphicon-pencil\"></span> Post</a></li>
                      </ul>
                      " ; 
             }?>
             <?php else{ ?>
                <?php
                  echo "
                      <ul class=\"nav navbar-nav navbar-right\">
                        <li><a href=\"#\" data-toggle=\"modal\" data-target=\"#loginModal\"><span class=\"glyphicon glyphicon-pencil\"></span> Post</a></li>
                      </ul> 
                      ";                
             }?>

Answer 1

这个怎么样？

<?php
    if(1){ 
        echo "
            <ul class=\"nav navbar-nav navbar-right\">
                  <li><a href=\"#\" data-toggle=\"modal\" data-target=\"#loginModal\"><span class=\"glyphicon glyphicon-pencil\"></span> Post</a></li>
            </ul>
              " ; 
   }
   else{
       echo "
           <ul class=\"nav navbar-nav navbar-right\">
                 <li><a href=\"#\" data-toggle=\"modal\" data-target=\"#loginModal\"><span class=\"glyphicon glyphicon-pencil\"></span> Post</a></li>
           </ul> 
             ";                
    }
?>

Answer 2

您正在使用多个冗余的php开始和结束标记。

整个代码块在php中，你只需要一个开头和一个结束

port        = 3306
socket      = /var/run/mysqld/mysqld.sock
socket      = /var/run/mysqld/mysqld.sock
nice        = 0
user        = mysql
pid-file    = /var/run/mysqld/mysqld.pid
socket      = /var/run/mysqld/mysqld.sock
port        = 3306
basedir     = /usr
datadir     = /var/lib/mysql
tmpdir      = /dev/shm
bind-address        = 0.0.0.0
key_buffer      = 128M
max_allowed_packet  = 40M
thread_stack        = 192K
thread_cache_size       = 8
myisam-recover         = BACKUP
max_connections        = 1000
table_cache            = 4096
thread_concurrency     = 10
max_heap_table_size = 48M
tmp_table_size      = 48M
general_log_file        = /var/log/mysql/mysql.log
general_log             = 1
slow_query_log = 1
slow_query_log_file = /var/log/mysql/mysql-slow.log
long_query_time = 2
expire_logs_days    = 10
max_binlog_size         = 100M
innodb_buffer_pool_size = 4500M
quick
quote-names
max_allowed_packet  = 16M
key_buffer      = 16M

由于多个php标记，原始代码无效，如果块不正确地结束，那么在其他地方显示为意外标记

见下图

PHP如果不工作

2 个答案: