当我进入While循环时，PHP搜索无法正常工作

Question

我的网站有一个搜索表单，它工作得很好，但是我改变了整个登录系统，导致我的网站出现了一些错误。现在唯一不能解决的错误就是我网站中的搜索表单。我认为这很奇怪，因为表单不使用登录表单中的任何变量。当我进行测试以发现问题时，我发现当我的搜索脚本的部分进入while循环时，它会打断我。如果您有任何建议或帮助，将不胜感激。我将在下面提供我的代码。

hub.php

<?php 

    // this file connects to the database 
    include("includes/connect.inc.php"); 

    session_start(); 

    if (isset($_SESSION['id'])) { 
    $uid  = $_SESSION['id']; 
    } 

//If the search input was submitted then run 
if(isset($_POST['search'])){ 
    // turn that the user searched into a varible 
    $searchQ = $_POST['search']; 
    // delete any symbols for security 
    $searchQ = preg_replace("#[^0-9a-z]#i", "", $searchQ); 
    // Define varibles before the loop 
    $searchArray = array(); 
    $searchIndex = 0; 

    // Search through these columns inside the main database 
    $searchQuery = mysqli_query("SELECT * FROM database WHERE 
     title LIKE '%" . mysqli_escape_string($searchQ) . "%' 
    "); 

    // count the number of results 
    $searchCount = mysqli_num_rows($searchQuery); 
    if($searchCount != 0){ 
     while($row = mysqli_fetch_array($searchQuery)){ 
      $titleSearch  = $row['title']; 
      $dateSearch  = $row['date']; 

      // buile the array which will hold all the results 
      $searchArray[$searchIndex] = array($titleSearch, $dateSearch); 
      $searchIndex++; 
     } 
    } 
} 
// End of search php 



<form id="search" action="hub.php" method="POST"> 
    <div id="searchIcon"></div> 
    <input type="search" name="search" placeholder="Search"> 
</form> 

这里是连接文件|它用于一堆其他形式和工作正常的循环。

<?php 

    $host = "MYHOSTINGDOMAIN"; 
    $username = "MYUSERNAME"; 
    $password = "MYPASSWORD"; 
    $db = $username; 

    $connect = mysqli_connect($host, $username, $password, $db) or die(mysqli_connect_error()); 

我得到这个错误

警告：mysqli_query（）预计至少2个参数，1 /services/webpages/d/i/digitalicon.ca/public/hub.php给出第42行

警告：mysqli_num_rows（）预计参数1被mysqli_result， 空在/services/webpages/d/i/digitalicon.ca/public/hub.php给定上 线45

Answer 1

好的，所提供的更新信息看起来好像是通过mysqli_ *函数连接，然后在此脚本中使用mysql_ *函数（切换到mysqli大概是您登录更改的一部分）。

所以，你需要更新你的脚本成为这个：

<?php 

// this file connects to the database 
include("includes/connect.inc.php"); 

session_start(); 

if (isset($_SESSION['id'])) { 
    $uid  = $_SESSION['id']; 
} 

// //If the search input was submitted then run 
if(isset($_POST['search'])){ 
    // turn that the user searched into a varible 
    $searchQ = $_POST['search']; 
    // delete any symbols for security 
    $searchQ = preg_replace("#[^0-9a-z]#i", "", $searchQ); 
    // Define varibles before the loop 
    $searchArray = array(); 
    $searchIndex = 0; 

    // Search through these columns inside the main database 
    $searchQuery = mysqli_query("SELECT * FROM database WHERE 
     title LIKE '%" . mysqli_escape_string($searchQ) . "%' or 
     date LIKE '%" . mysqli_escape_string($searchQ) . "%' 
    "); 

    // count the number of results 
    $searchCount = mysqli_num_rows($searchQuery); 
    if($searchCount != 0){ 
     while($row = mysqli_fetch_array($searchQuery)){ 
      $titleSearch  = $row['title']; 
      $dateSearch  = $row['date']; 

      // buile the array which will hold all the results 
      $searchArray[$searchIndex] = array($titleSearch, $dateSearch); 
      $searchIndex++; 
     } 
    } 
} 
// End of search php 

这包括我的实际查询数据库，在那里你以前只是逃避串初步修复。