php - 如何将变量从一页上的输入框传递到另一页并使用此信息在第 2 页上执行搜索？

Question

我确信这个问题的答案很简单，但我是一个 php/javascript 新手，因此我的问题。前三段代码以“echo $_POST['new_search_text'];”结尾，视觉效果完美，但现在我想弄清楚如何让在第一部分的表单中输入的输入通过并用于搜索条件在我的搜索页面上(搜索页面代码以“{include file='header.tpl'}”开头，以“{include file='footer.tpl'}”结尾)。我想要它，所以传递的信息会在搜索页面上自动搜索，就好像我直接在那里输入它并点击“搜索”，然后让它在搜索页面上显示结果。我使用的是 smarty 模板，并且还包含了来 self 的搜索页面的主干 PHP 代码(以“$page = “search”;”开头)。我不能使用 Jquery，因为它会干扰其他代码，但我认为解决方案相当简单。

谢谢!!

    <form id="searchForm" action="./search.php" method="post">
        <input type="text" name="new_search_text" value="">
        <input type="submit" value="Search">
        <input type="submit" value="Cancel" onclick="showSearchLink();return false;">
    </form>
    <a id="searchLink" class="button_link_main" href="./search.php" onclick="showSearchForm();return false;">Link</a>


    function showSearchForm() {
        // show the form by setting style="display:inline"
        document.getElementById('searchForm').style.display = 'inline';
        // hide the link by setting style="display:none"
        document.getElementById('searchLink').style.display = 'none';
    }

    function showSearchLink() {
        // hide the form
        document.getElementById('searchForm').style.display = 'none';
        // show the link
        document.getElementById('searchLink').style.display = 'inline';
    }

    <?php
    echo $_POST['new_search_text'];
    ?>



{include file='header.tpl'}

<img src='./images/icons/search48.gif' border='0' class='icon_big'>
<div class='page_header'>Search Avulsion Net</div>
<div>{lang_print id=924}</div>
<br />
<br />

<form action='search.php' name='search_form' method='post'>
<table cellpadding='0' cellspacing='0' align='center'>
<tr>
<td class='search'>
  <table cellpadding='0' cellspacing='0' align='center'>
  <tr>
  <td>{lang_print id=925}</td>
  <td>&nbsp;<input style='background-color:#CCCCCC' type='text' size='30' class='text' name='search_text' id='search_text' value='{$search_text}' maxlength='100'></td>
  <td>
    &nbsp;<input type='submit' class='button' value='{lang_print id=646}'>
    <input type='hidden' name='task' value='dosearch'>
    <input type='hidden' name='t' value='0'>
  </td>
  </tr>
  <tr>
  <td>&nbsp;</td>
  <td colspan='2'>&nbsp;<b>-=<a href='search_advanced.php'>Browse Members</a>=-</b></td>
  </tr>
  </table>
</div>
</form>
</td>
</tr>
</table>

<br>

{if $search_text != ""}

  {if $is_results == 0}

    <table cellpadding='0' cellspacing='0' align='center'>
    <tr>
    <td class='result'>
      <img src='./images/icons/bulb16.gif' class='icon'>
      {lang_sprintf id=927 1=$search_text}
    </td>
    </tr>
    </table>

  {else}


    {* SHOW DIFFERENT RESULT TOTALS *}
    <table class='tabs' cellpadding='0' cellspacing='0'>
    <tr>
    <td class='tab0'>&nbsp;</td>
      {section name=search_loop loop=$search_objects}
        <td class='tab{if $t == $search_objects[search_loop].search_type}1{else}2{/if}' NOWRAP>{if $search_objects[search_loop].search_total == 0}{lang_sprintf id=$search_objects[search_loop].search_lang 1=$search_objects[search_loop].search_total}{else}<a href='search.php?task=dosearch&search_text={$url_search}&t={$search_objects[search_loop].search_type}'>{lang_sprintf id=$search_objects[search_loop].search_lang 1=$search_objects[search_loop].search_total}</a>{/if}</td>
        <td class='tab'>&nbsp;</td>
      {/section}
      <td class='tab3'>&nbsp;</td>
    </tr>
    </table>

    <div class='search_results'>

      {* SHOW PAGES *}
      {if $p != 1}<a href='search.php?task=dosearch&search_text={$url_search}&t={$t}&p={math equation='p-1' p=$p}'>&#171; {lang_print id=182}</a> &nbsp;|&nbsp;&nbsp;{/if}
      {if $p_start == $p_end}
        <b>{lang_sprintf id=184 1=$p_start 2=$total_results}</b> ({lang_sprintf id=928 1=$search_time}) 
      {else}
        <b>{lang_sprintf id=185 1=$p_start 2=$p_end 3=$total_results}</b> ({lang_sprintf id=928 1=$search_time}) 
      {/if}
      {if $p != $maxpage}&nbsp;&nbsp;|&nbsp; <a href='search.php?task=dosearch&search_text={$url_search}&t={$t}&p={math equation='p+1' p=$p}'>{lang_print id=183} &#187;</a>{/if}

      <br><br>

      {* SHOW RESULTS *}
      {section name=result_loop loop=$results}

    <div class='search_result{cycle name="class_name" values="1,2,2,1"}' style='width: 400px; float: left; border: 1px solid #CCCCCC; margin: 5px;'>
    <table cellpadding='0' cellspacing='0'>
        <tr>
        <td valign='top' style='padding-right: 4px;'>
      <a href="{$results[result_loop].result_url}" class="title"><img src='{$results[result_loop].result_icon}' class='photo' width='60' height='60' border='0'></a>
    </td>
    <td valign='top'>
          <div class='search_result_text'>
        {capture assign='result_title'}{lang_sprintf id=$results[result_loop].result_name 1=$results[result_loop].result_name_1}{/capture}
            <a href="{$results[result_loop].result_url}" class="title">{$result_title|truncate:40:"...":true}</a>
            <div class='search_result_text2'>{lang_sprintf id=$results[result_loop].result_desc 1=$results[result_loop].result_desc_1 2=$results[result_loop].result_desc_2 3=$results[result_loop].result_desc_3}</div>
        {if $results[result_loop].result_online == 1}<div style='margin-top: 5px;'><img src='./images/icons/online16.gif' border='0' class='icon'>{lang_print id=929}</div>{/if}
          </div>
    </td>
    </tr>
    </table>
    </div>
        {cycle name="clear_cycle" values=",<div style='clear: both; height: 0px;'></div>"}
      {/section}

      <div style='clear:both;'></div><br />

      {* SHOW PAGES *}
      {if $p != 1}<a href='search.php?task=dosearch&search_text={$url_search}&t={$t}&p={math equation='p-1' p=$p}'>&#171; {lang_print id=182}</a> &nbsp;|&nbsp;&nbsp;{/if}
      {if $p_start == $p_end}
        <b>{lang_sprintf id=184 1=$p_start 2=$total_results}</b> ({lang_sprintf id=928 1=$search_time}) 
      {else}
        <b>{lang_sprintf id=185 1=$p_start 2=$p_end 3=$total_results}</b> ({lang_sprintf id=928 1=$search_time}) 
      {/if}
      {if $p != $maxpage}&nbsp;&nbsp;|&nbsp; <a href='search.php?task=dosearch&search_text={$url_search}&t={$t}&p={math equation='p+1' p=$p}'>{lang_print id=183} &#187;</a>{/if}


    </div>
  {/if}
{/if}


{* JAVASCRIPT TO AUTOFOCUS ON SEARCH FIELD *}
{literal}
<script type="text/javascript">
<!-- 
  window.addEvent('load', function(){ $('search_text').focus(); });
//-->
</script>
{/literal}


{include file='footer.tpl'}



<?php

$page = "search";
include "header.php";

// DISPLAY ERROR PAGE IF USER IS NOT LOGGED IN AND ADMIN SETTING REQUIRES REGISTRATION
if($user->user_exists == 0 && $setting['setting_permission_search'] == 0)
{
  $page = "error";
  $smarty->assign('error_header', 639);
  $smarty->assign('error_message', 656);
  $smarty->assign('error_submit', 641);
  include "footer.php";
}

if(isset($_POST['task'])) { $task = $_POST['task']; } elseif(isset($_GET['task'])) { $task = $_GET['task']; } else { $task = "main"; }
if(isset($_POST['p'])) { $p = (int) $_POST['p']; } elseif(isset($_GET['p'])) { $p = (int) $_GET['p']; } else { $p = 1; }
if(isset($_POST['search_text'])) { $search_text = $_POST['search_text']; } elseif(isset($_GET['search_text'])) { $search_text = $_GET['search_text']; } else { $search_text = ""; }
if(isset($_POST['t'])) { $t = $_POST['t']; } elseif(isset($_GET['t'])) { $t = $_GET['t']; } else { $t = 0; }

// SET VARS
$results_per_page = 20;
$results = Array();
$total_results = 0;
$is_results = 0;
$object_count = 0;
$search_objects = Array();
$is_next_page = 0;
if($p < 1) { $p = 1; }



// DO SEARCH
if($task == "dosearch" && $search_text != "")
{
  // START SEARCH TIMER
  $start_timer = getmicrotime();

  // SEARCH PROFILES
  search_profile();

  // CALL SEARCH HOOK
  ($hook = SE_Hook::exists('se_search_do')) ? SE_Hook::call($hook, array()) : NULL;

  // GET GRAND TOTAL RESULTS
  for($r=0;$r<count($search_objects);$r++)
  {
    if($search_objects[$r][search_total] != 0)
    { 
      if($total_results == 0) { header("Location: search.php?task=dosearch&search_text=".urlencode($search_text)."&t=".$search_objects[$r]['search_type']); exit(); }
      $is_results = 1; 
    }
  }

  // END TIMER
  $end_timer = getmicrotime();
  $search_time = round($end_timer - $start_timer, 3); 

  // CHECK TO SEE IF THERE IS A "NEXT PAGE"
  if(count($results) > $results_per_page)
  { 
    $is_next_page = 1;
    while(count($results) > $results_per_page)
    {
      array_pop($results);
    }
  }

  // IF TOTAL RESULTS IS MORE THAN 200, CHANGE TO 200+
  if($total_results > 200)
  { 
    if($is_next_page == 1) { $maxpage = $p+1; } else { $maxpage = $p; }
    $total_results = "200+";
  }
  else
  {
    if(($total_results % $results_per_page) != 0) { $maxpage = ($total_results) / $results_per_page + 1; } else { $maxpage = ($total_results) / $results_per_page; }
    $maxpage = (int) $maxpage; 
  }

  // IF RESULTS IS EMPTY AND PAGE ISN'T 1, DISPLAY NOTHING
  if(count($results) == 0 && $p != 1) { $search_text = ""; }
}



// SET THE GLOBAL PAGE TITLE
$global_page_title[0] = 646;
$global_page_description[0] = 924;


// ASSIGN SMARTY VARIABLES AND INCLUDE FOOTER
$smarty->assign('search_text', $search_text);
$smarty->assign('url_search', urlencode($search_text));
$smarty->assign('is_results', $is_results);
$smarty->assign('results', $results);
$smarty->assign('total_results', $total_results);
$smarty->assign('search_objects', $search_objects);
$smarty->assign('search_time', $search_time);
$smarty->assign('maxpage', $maxpage);
$smarty->assign('t', $t);
$smarty->assign('p', $p);
$smarty->assign('p_start', (($p-1)*$results_per_page)+1);
$smarty->assign('p_end', (($p-1)*$results_per_page)+count($results));
include "footer.php";
?>

Answer 1

您可能可以采用多种方法来完成此操作。一种方法是编写一个 javascript 函数来检查 POST var 'new_search_text' 是否存在，然后以编程方式将此字符串放入搜索框中，如果找到则提交表单。

<script>
  function checkForAutoSearch()
  {
    var searchString = <?php echo (!empty($_POST['new_search_term'])) ? $_POST['new_search_term'] : ''; ?>;

    if (searchString)
    {
      // put searchString into the second search field
      document.getElementById('search_text').value = searchString;

      // up in your search form, assign the form tag an id first: id="search_form"
      // then submit the form:
      document.getElementById('search_form').submit();
    }
  }

  // now fire this function whenever the page loads
  window.onload = checkForAutoSearch;
</script>

附带说明，您提到您不能使用 jQuery，但在 js 代码中将自动焦点设置到搜索字段，看起来您正在使用 jQuery。如果您需要删除 jQuery，您可能需要查找设置焦点的直接 javascript 方法。