PHP添加+；1英寸while循环

我有while循环，其中有论坛帖子。我想显示帖子的数量（1,2…）

让我告诉你我的想法

while($some = mysql_fetch_array($forum_posts)){
echo 'Number of post is $num++';
}

表现得像

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------职位-------

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谢谢。抱歉英语不好

$num必须初始化

$num = 1;
while($some = mysql_fetch_array($forum_posts)){
echo 'Number of post is '.($num++);
}

尝试：

$num = 1;
while($some = mysql_fetch_array($forum_posts)){
   echo 'Number of post is ' . ($num++) . '.';
}

变量必须在字符串之外

$num = 0;

while($some = mysql_fetch_array($forum_posts)){
    echo 'Number of post is '.++$num;
}

$num = 0;

while($some = mysql_fetch_array($forum_posts)){
    echo 'Number of post is '.++$num;
}