從表格中檢索數據

-1

我有一個填充數據庫數據的表單，然後用戶修改數據或選擇不修改任何內容，然後只需按下提交按鈕即可將UPDATE添加到數據庫中。我的問題是：從表格中檢索數據

我不知道如何確定哪些領域有數據修改

如何從表單中的數據，如果該數據已被修改
我用XAMP與PHP 5.3和HeidiSQL 。這是我的代碼

LOGIN「）;} 其他 { 包括（ '../ conect.php'）; // 增加一個條目，如果它是一個新的領域-BEGIN IF（（isset（$ _ &&（isset（$ _ GET [「nou」]））&&（！empty（$ _ POST ['content']））&&（！empty（$ _ POST ['nume']））&&（！empty（$ _POST ['cale']））&&（！empty（$ _ POST ['ordine']））） if（$ _POST ['select']！=「」）{ $ nume = stripslashes（$ _ POST [ ';'）; $ cale = $ _ POST ['cale']; $ ordine = $ _ POST ['ordine']; $ id = $ _ POST ['select']; $ content = stripslashes（$ _ POST ['content']）;

$result=mysql_query("SELECT * FROM categorii_menu WHERE id=$id"); 
    $data=mysql_fetch_row($result); 
    $grad=$data[2]; 

    $result2=mysql_query("SELECT * FROM categorii_menu WHERE grad_categorie=$grad"); 
    while($data=mysql_fetch_row($result2)) 
    { 
     if ($ordine==$data[2]) $ok=1; 
     else $ok=0; 
    } 
    $result3=mysql_query("SELECT * FROM categorii_menu "); 
    while($zata=mysql_fetch_row($result3)) 
    { 
     if($nume==$zata[1]) 
     { 
      echo "Deja se foloseste acest nume"; 
      $z=1; 
      break; 
     } 
     else $z=0; 
     if(($ok==0)&&($z==0)) 
      mysql_query("INSERT INTO categorii_menu(nume,nr_ordine,grad_categorie,cale,continut) VALUES ('$nume','$ordine','$grad','$cale','$content')"); 
     else if (($ok==1)&&($z==0)) 
      echo "Acest nr de ordine este deja luat"; 
    } 
    else{ 
     $nume=stripslashes($_POST['nume']); 
     $cale=$_POST['cale']; 
     $content = stripslashes($_POST['content']); 
     $grad=0; 
     $ok=0; 
     $nr_ordine=$_POST['ordine']; 
     $result=mysql_query("SELECT * FROM categorii_menu WHERE grad_categorie=$grad"); 
     while($data=mysql_fetch_row($result)){ 
      if($data[2]==$nr_ordine) 
      { 
       $ok=1; 
      } 
     } 
     $result3=mysql_query("SELECT * FROM categorii_menu "); 
     while($zata=mysql_fetch_row($result3)){ 
      if($nume==$zata[1]){ 
       echo "Deja se foloseste acest nume"; 
       $z=1; 
       break; 
      } 
      else $z=0; 
     } 
     if(($ok==0)&&($z==0))mysql_query("INSERT INTO categorii_menu(nume,nr_ordine,cale,grad_categorie,continut) VALUES ('$nume','$nr_ordine','$cale','$grad','$content')"); 
     else if(($ok==1)&&($z==0)) 
      echo "Acest nr de ordine este deja luat"; 
     } 
     //adds an entry if it's a new field -end 
     //retrieves the modified data from the populated form (but only if all fields are modified :( , i don't know how to overcome this inconvenience ) - begin 
     else if (($_POST) && (isset($_GET["nou"]))) echo"Nu ati completat toate campurile"; 
     if(($_POST) && (isset($_GET["id"])) && (!empty($_POST['content'])) &&(!empty($_POST['nume'])) && (!empty($_POST['cale'])) && (!empty($_POST['ordine']))) {    
      if($_POST['select']!=""){  
      $id=$_GET["id"]; 
      $nume=$_POST['nume']; 
      $cale=$_POST['cale']; 
      $ordine=$_POST['ordine']; 
                                     $select=$_POST['select']; 
                                     $content = stripslashes($_POST['content']); 
             $result=mysql_query("SELECT * FROM categorii_menu WHERE id=$select"); 
             $data=mysql_fetch_row($result); 
             $grad=$data[2]; 

             $result2=mysql_query("SELECT * FROM categorii_menu WHERE grad_categorie=$grad"); 
             while($data=mysql_fetch_row($result2)) 
             { if ($ordine==$data[2]) $ok=1; 
              else $ok=0; } 

             $result3=mysql_query("SELECT * FROM categorii_menu "); 
             while($zata=mysql_fetch_row($result3)){ 
              if($nume==$zata[1]){ 
               echo "Deja se foloseste acest nume"; 
               $z=1; 
               break; 
              } 

               else $z=0; 

             } 

             if(($ok==0)&&($z==0)){ 
              $result2 = mysql_query("SELECT * FROM categorii_menu"); 
              mysql_query("UPDATE categorii_menu SET nume='$nume' , nr_ordine='$ordine' , grad_categorie='$grad', cale='$cale' , continut='$content' WHERE id='$id'"); 
              header('Location:lista_linkuri.php'); 
             } 
             else if(($ok==1)&&($z==0))echo"Acest nr de ordine este deja luat";    
       } 



       else { 
             $id=$_GET["id"]; 
             $nume=$_POST['nume']; 
             $cale=$_POST['cale']; 
             $ordine=$_POST['ordine']; 
             $content = stripslashes($_POST['content']); 
             $grad=0; 
             $ok=0; 

             $result=mysql_query("SELECT * FROM categorii_menu WHERE grad_categorie=$grad"); 
             while($data=mysql_fetch_row($result)){ 
             if($data[2]==$ordine) 
              { 
               $ok=1; 

               } 
              } 
             $result3=mysql_query("SELECT * FROM categorii_menu "); 
             while($zata=mysql_fetch_row($result3)){ 
              if($nume==$zata[1]){ 
               echo "Deja se foloseste acest nume"; 
               $z=1; 
               break; 
              } 
               else $z=0; 
             } 

             if(($ok==0)&&($z==0)){ 
              mysql_query("UPDATE categorii_menu SET nume='$nume',nr_ordine='$ordine',cale='$cale',grad_categorie='$grad',continut='$continut') WHERE id='$id'"); 
              header('Location:lista_linkuri.php'); 
             } 
              else if(($ok==1)&&($z==0))echo "Acest nr de ordine este deja luat";     



       } 
     } else if((isset($_GET["id"])) &&($_POST)) echo"Nu ati completat toate campurile" ; 

     //retrieves the modified data from the populated form (but only if all fields are modified :( , i don't know how to overcome this inconvenience ) - end 



}

Editare pagina

tinyMCE.init（{// 常規選項模式：「文本域」，主題：「高級」， plugins：「spellchecker，preview，searchreplace，paste，fullscreen，template」，

 // Theme options 
    theme_advanced_buttons1 : "newdocument,|,bold,italic,underline,strikethrough,|,justifyleft,justifycenter,justifyright,justifyfull,|,formatselect,fontselect,fontsizeselect", 
    theme_advanced_buttons2 : "cut,copy,paste,pastetext,pasteword,|,search,replace,|,bullist,numlist,|,outdent,indent,|,undo,redo,preview,|,forecolor,backcolor", 
    theme_advanced_buttons3 : "removeformat,|,sub,sup,|,charmap,|,fullscreen", 
    theme_advanced_buttons4 : "spellchecker,template", 
    theme_advanced_toolbar_location : "top", 
    theme_advanced_toolbar_align : "left", 
    theme_advanced_statusbar_location : "bottom", 


    // Skin options 
    skin : "o2k7", 
    skin_variant : "silver", 



    // Drop lists for link/image/media/template dialogs 
    template_external_list_url : "js/template_list.js", 
    external_link_list_url : "js/link_list.js", 
    external_image_list_url : "js/image_list.js", 
    media_external_list_url : "js/media_list.js", 

    // Replace values for the template plugin 
    template_replace_values : { 
      username : "Some User", 
      staffid : "991234" 
    }

}）; // initializare megamenu ddmegamenu.docinit（{ MENUID： 'solidmenu'， DUR：200 }）

<div class="butoane_lista_articole"> 
      <a href="lista_linkuri.php">Inapoi la lista</a> 
    </div> 

    <div id="pagina_noua_link" class="camp_linkuri2" > 
     <div id="zona-date" class="titlu_pagina_noua"> 
      <form action="<?php $_PHP_SELF ?>" method="post"> 
      <span class="span_edit">Meniuri</span> 
       <select name="select"> 

         <option value="">Pagina Principala Noua</option> 
          <?php 

            $result=mysql_query("SELECT * FROM categorii_menu WHERE grad_categorie=0"); 
            while($data=mysql_fetch_assoc($result)){ ?> 
            <option value="<?php echo $data['id']; ?>" <?php if($data['id']!="") {echo "selected"; ?> > <?php echo $data['nume'];}?></option> 
         <?php  } 

            ?> 

       </select> 

     </div> 
          <?php 
          if(isset($_GET["id"])){ 
            $id=$_GET["id"]; 
            $result=mysql_query("SELECT * FROM categorii_menu WHERE id=$id;"); 
            $data=mysql_fetch_row($result); 
            echo '<label for="nume">Nume</label><input type="text" value="'.$data[1].'"name="nume" class="input_text"/>'; 
            echo '<label for="cale">Cale</label><input type="text" value="'.$data[4].'"name="cale" class="input_text"/>'; 
            echo '<label for="ordine">Nr ordine</label><input type="text" value="'.$data[2].'"name="ordine" class="input_text"/>'; 
           } 
            else {?> 

              <label for="nume">Nume</label><input type="text" name="nume" class="input_text" /> 
              <label for="cale">Cale</label><input type="text" name="cale" class="input_text"/> 
              <label for="ordine">Nr ordine</label><input type="text" name="ordine" class="input_text"/> 
            <?php }?>    
    </div> 

        <div id="articol_link"> 

          <textarea name="content" style="width :100%; height:300px;"> 
           <?php 
           if(isset($_GET["id"])){ 
           $id=$_GET["id"]; 
           $v2 = mysql_query("SELECT * FROM categorii_menu WHERE id=$id "); 
           $id2 = mysql_fetch_row($v2); 
           echo $id2[6]; 
           } 
           ?> 
          </textarea> 
        </div>      

          <input type="submit" name="submit" value="<?php if(isset($_GET["id"])) echo "Salvare Modficari "; else echo "Adauga pagina";?> " class="button2"/> 
      </form>

來源

2013-01-10 Johny

爲什麼你只覆蓋已更改的領域？這是有點難以遵循你的代碼，但更一般的你可以使用「更新表...」與所有的領域。表單中沒有更改的字段將被更新爲與之前相同。如果我誤解了問題..如果是這樣，mysql表格的描述將會有所幫助。 – EirikO

請簡化您的代碼或去直接問題/問題 – ianace

您可以更新表單中數據庫中的所有字段。所有字段將用當前值更新。

您可以檢索由$ _ POST數據[「字段名」]你已經做了插入

來源

2013-01-10 06:12:08

謝謝你，你說得對，解決方案非常明顯。當我寫代碼的時候，我覺得我很累，所以我不能直接接受 – Johny

。如果它能幫助你，就接受答案 –

試試這個方法： -

if(isset($_POST['submit_button_name'])) 
{ 
    $dbDataArray= /* get stored data from database in associative array format like  
    [ 'column_name1']=>['column_value1']*/ 
    //Now map the field name to column name accordingly 
    if($_POST['field_name1'] != $dbDataArray['column_name1']) 
    { 
     $updateArray['column_name1']=$_POST['field_name1'] 
     //put in this array to use it later to update 
    } 
} 

//Now, fire update query to update all values in $updateArray.

來源

2013-01-10 06:22:49

從表格中檢索數據

回答

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