php - sql搜索结果太多也有错-6ren

php - sql搜索结果太多也有错

转载作者：行者123 更新时间：2023-11-30 21:55:41

代码:

<?php
include("config.php");
mysql_connect("Localhost" , "root" , "") or die(mysql_error());
mysql_select_db("imprimante");
if(isset($_POST["submit"])){
  $search = $_POST["search"];
  $sql = mysql_query("SELECT * FROM `inventar` i , `evidenta` e WHERE 
    (i.`ID_M` = '".$search."' and i.`ID_M` = e.`ID_M`) OR (i.`model` LIKE 
    '".$search."') OR (e.`data_intrare` = '".$search."') OR (e.`data_iesire` = 
    '".$search."') OR (i.`user` LIKE '".$search."' and i.`user` = 
    e.`user_iesire`) OR (i.`dept` LIKE '".$search."' and i.`dept` = e.`dept`) OR 
    (i.`tip` LIKE '".$search."') OR (i.`COD` like '".$search."') OR (i.`SERIA` 
    LIKE '".$search."') OR (i.`NR_INV` LIKE '".$search."')");

  if(!$search){
    echo "Nu ai cautat nimic...";
  } else {

  //WHILE PT RESULTURI
  while($row = mysql_fetch_array($sql)){
    echo '<br/> Model: '.$row['model'];
      echo '<br/> ID Model: '.$row['ID_M'];
      echo '<br/> Data Intrare: '.$row['data_intrare'];
      echo '<br/> Data Iesire: '.$row['data_iesire'];
      echo '<br/> User: '.$row['user'];
      echo '<br/> User Iesire: '.$row['user_iesire'];
      echo '<br/> Departament: '.$row['dept'];
      echo '<br/> Tip Consumabil: '.$row['tip'];
      echo '<br/> Cod Produs: '.$row['cod'];
      echo '<br/> Seria: '.$row['SERIA'];
      echo '<br/> Numar Inventar: '.$row['NR_INV'];
      echo '<br/><br/>';
    }
  }
}?>
<html>
  <head><title>Search Function</title></head>
  <body>
    <form action="search.php" method=POST>
      <input type=text name="search" placeholder="Cauta"><br/><br/>
      <input type=submit value="Cauta" name="submit"><br/><br/>
      <button  name="Index"><a href="../index.php">Index</a></button>
      <button  name="Evidenta"><a href="evidenta.php">Evidenta</a></button><br/>
    </form>
  </body>
</html>

为什么这个查询返回的结果总是比我在我的数据库中实际拥有的结果多，而且还返回错误的结果？

顺便说一句，“inventar”和“evidenta”这两个表通过 ID_M 建立了关系

谢谢你的帮助:D

最佳答案

请测试此查询(我认为您必须在查询中管理'OR'):

<?php

mysql_query("SELECT * 
             FROM `inventar` i , `evidenta` e 
             WHERE ( i.`ID_M` = '" . $search . "' 
                     AND i.`ID_M` = e.`ID_M`
                   ) 
                   OR ( (i.`model` LIKE '" . $search . "') 
                        OR (e.`data_intrare` = '" . $search . "') 
                        OR (e.`data_iesire` = '" . $search . "') 
                        OR ( i.`user` LIKE '" . $search . "' 
                             AND i.`user` = e.`user_iesire`
                            ) 
                        OR ( i.`dept` LIKE '" . $search . "' 
                             AND i.`dept` = e.`dept`
                           )
                        OR (i.`tip` LIKE '" . $search . "') 
                        OR (i.`COD` like '" . $search . "') 
                        OR (i.`SERIA` LIKE '" . $search . "') 
                        OR (i.`NR_INV` LIKE '" . $search . "')
                   )"
);