我的PHP文件看起来像这样：

<?PHP
  if (isset($_POST["search"])) {    

    //include database connection

 $word = MysqL_real_escape_string($_POST["search"]);
 $word = htmlentities($word);

 $sql = ("SELECT task_id,task_date FROM customer JOIN task ON customer.id = task.customer_id WHERE mobil = $word ORDER BY task_date DESC LIMIT 0,10");

$results = MysqL_query($sql);
 if (MysqL_num_rows($results)==0) {
  echo $word," text bla";
}else {
  echo $word," text bla bla";
   while ($row = MysqL_fetch_assoc($results)) {
    echo '<pre>',print_r($row),'<pre>';
   }
  } 
}?>

期待您的建议.

—更新会话仍然无法在page2.PHP上运行？—

我不明白为什么$_SESSION不起作用.一个page1.PHP我可以回显($_ SESSION [‘word’])并获得正确的值,但是我得到一个page2.PHP(‘$’.“_ SESSION [‘word’]没有设置,因为你从来没有在文件一“);

我测试了以下所有解决方案,但没有一个在page2.PHP上工作=相同的结果.

我的page1.PHP文件.

<?PHP
session_start();

//if we got something through $_POST
    if (isset($_POST["search"])) {  

    // include database connection
        $connect = MysqL_connect('localhost','root','NomiS123') or die(MysqL_error());
        MysqL_select_db('workcard');

    // sanitize user input
        $word = MysqL_real_escape_string($_POST["search"]);
        $word = htmlentities($word);

    // build search query to the database
        $sql = ("SELECT task_id,10");

        // get results
        $_SESSION['word'] = $word;
        $results = MysqL_query($sql);
        if (MysqL_num_rows($results)==0) {
            $_SESSION['word'] = $word;
            echo($_SESSION['word']. "<br>");
            var_dump($_SESSION);
            echo "<br>";
            echo "link link <br>";
            echo "<a href=\"../page2.PHP/\">new card</a> <br>";
            echo "<a href=\"//cykelc/\">New Search</a>";
        }   else {
                echo $word," bla bla text <br> Create card <br>";
                echo "Edit info on: ",$word,"<br>";
                echo "<a href=\"//cykelc/\">New Search</a> <br>";

                while ($row = MysqL_fetch_assoc($results)) {
                    echo '<pre>','<pre>';
                    }
                    //$results->free();
            }   
        }
// MysqL_close($connect);
?>

我的PAGE2.PHP文件.

<?PHP 
session_start();
if(isset($_SESSION['word'])) {
    $word = $_SESSION['word'];
    echo($word);
} else {
    die('$'."_SESSION['word'] isn't set because you had never been at file one");
}
?>

我对此疯狂.

更新 – 已解决
我测试了以下所有建议,但没有一个工作,这是奇怪的,因为我可以设置和回显page1.PHP和page2.PHP上的sesson_id(),但在page2.PHP我有一个不同的sesson_id().我开始研究我的MAMP会话设置,但一切都是正确的设置.解决方案是“简单地”放置session_start();在page2.PHP的最顶部.最重要的是,我甚至在所有事情之前都是<！DOCTYPE html>等解决过的经验教训:-)