我有一个填充数据库数据的表单，然后用户修改数据或选择不修改任何内容然后只需按下提交按钮就可以将UPDATE放入数据库。我的问题是：< / p>
如果数据已被修改，如何从表单中检索数据
我在PHP 5.3和HeidiSQL中使用XAMP。这是我的代码
$result=mysql_query("SELECT * FROM categorii_menu WHERE id=$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（{ // 常规选项 模式：“textareas”， 主题：“先进”， 插件：“拼写检查，预览，搜索，粘贴，全屏，模板”，
// 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"
}
<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>
答案 0 :(得分：2)
您可以更新数据库中表单中的所有字段。所有字段都将使用当前值进行更新。
您可以通过$ _POST ['fieldname']检索已经插入
的数据答案 1 :(得分：0)
尝试这种方法： -
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.