嗨，我是 php 新手，我创建了一个表单，该表单动态添加表格行，按下添加按钮我能够将其保存到我的数据库中，并且能够在用户单击编辑时保留这些值，但我的问题是当我按提交，即更新按钮，它会删除以前的记录并只保存新添加的行，或者如果我只是按更新按钮而不进行任何更改，那么它会从动态添加的表中删除所有值，我在插入我的数据库之前编写了删除命令那应该将以前的记录删除到我的数据库中并保存新的记录，但它会删除记录并只保存新添加的行 任何人都可以帮助我，这将是一个巨大的帮助我只是一个初学者，所以如果我正在做请给我这里有问题是我的代码和 javascript
<?php
session_start();
if (!isset($_SESSION["username"])) {
header("Location: unauthorize_access.php");
}
include("config.php");
/*mysql_query("LOCK TABLES `makhtab` WRITE, `makhzim` WRITE, `makhalim` WRITE, `country` WRITE, `state` WRITE, `district` WRITE, `tehsil` WRITE, `city` WRITE, `centre` WRITE, `qabiliyat` WRITE") or die(mysql_error());*/
$newsid = mysql_real_escape_string($_REQUEST['code']); // is used for both $_GET/$_POST variables
if(isset($_POST['submit']))
{
$fname = mysql_real_escape_string($_POST['name']);
$fadd1 = mysql_real_escape_string($_POST['add1']);
$fadd2 = mysql_real_escape_string($_POST['add2']);
$fadd3 = mysql_real_escape_string($_POST['add3']);
$fpin = mysql_real_escape_string($_POST['pin']);
$ftel = $_POST["contact"];
$fcenter = mysql_real_escape_string($_POST['cmbcen']);
$fcity = mysql_real_escape_string($_POST['cmbcity']);
$fteh = mysql_real_escape_string($_POST['cmbteh']);
$fdist = mysql_real_escape_string($_POST['cmbdist']);
$fstate = mysql_real_escape_string($_POST['cmbstate']);
$fcoun = mysql_real_escape_string($_POST['cmbcoun']);
$fstu = mysql_real_escape_string($_POST['stu']);
$fbatch = mysql_real_escape_string($_POST['batch']);
mysql_query("UPDATE `makhtab` SET `name`='$fname', `add1`='$fadd1', `add2`='$fadd2', `add3`='$fadd3', `pin`='$fpin',
contact='$ftel', `center`='$fcenter', `city`='$fcity', `tehsil`='$fteh', `district`='$fdist', `state`='$fstate',
`country`='$fcoun', students='$fstu', batch='$fbatch' WHERE `code`='$newsid' ") or die(mysql_error());
$num = $_POST['rr'];
mysql_query("DELETE FROM `makhalim` WHERE makhcode ='$newsid'")or die(mysql_error());
print'<script type="text/javascript">';
print"alert('alim'.$num.)";
print'</script>';
for($i=1;$i<$num;$i++)
{
$mname = $_POST["alimname_$i"];
$mmob = $_POST["alimmob_$i"];
$mqab = $_POST["qabil_$i"];
if(!empty($mname)){
mysql_query("INSERT INTO `makhalim`(makhcode, srno, `name`, mobile, `qabiliyat`) Values('$newsid', '$i', '$mname', '$mmob', '$mqab')") or die(mysql_error());
}
}
$hh = $_POST['hh'];
mysql_query("DELETE FROM makhzim WHERE makhcode ='$newsid'")or die(mysql_error());
if($hh > 0){
for($h=1;$h<$hh;$h++)
{
$m_name = $_POST["zimname_$h"];
$m_mob = $_POST["zimmob_$h"];
if(!empty($m_name)){
mysql_query("INSERT INTO `makhzim`(makhcode, srno, `name`, mobile) Values('$newsid', '$h', '$m_name','$m_mob')") or die(mysql_error());
}
}
}
/*mysql_query("UNLOCK TABLES") OR die(mysql_error());*/
print'<script type="text/javascript">';
print "alert('Records Updated Sucessfully')";
header("refresh: 2; makh_tab.php");
print'</script>';
}
elseif($newsid)
{
$result = mysql_query("SELECT `name`, `add1`, `add2`, `add3`, pin, contact, `center`, `city`, `tehsil`, `state`, `district`, `country`, students, batch FROM makhtab WHERE code='$newsid' ",$connect);
$myrow = mysql_fetch_assoc($result);
$cname = $myrow["name"];
$cadd1 = $myrow["add1"];
$cadd2 = $myrow["add2"];
$cadd3 = $myrow["add3"];
$cpin = $myrow["pin"];
$ccen = $myrow["center"];
$ccity = $myrow["city"];
$cteh = $myrow["tehsil"];
$cstate = $myrow["state"];
$cdist = $myrow["district"];
$ccoun = $myrow["country"];
$cstu = $myrow["students"];
$cbatch = $myrow["batch"];
?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Makhtab</title>
<link rel="stylesheet" type="text/css" href="form2/view.css" media="all">
<script type="text/javascript" src="form2/view.js"></script>
<script type="text/javascript" src="form2/calendar.js"></script>
<meta http-equiv="Content-Script-Type" content="text/javascript">
<script language="javascript" type="text/javascript">
var jj=1;
function addRow()
{
//alert(jj)
var tbl = document.getElementById('zimtable');
var lastRow = tbl.rows.length;
var iteration = lastRow - 1;
var row = tbl.insertRow(lastRow);
var firstCell = row.insertCell(0);
var el = document.createElement('input');
el.type = 'text';
el.name = 'zimname_' + jj;
el.id = 'zimname_' + jj;
el.size = 40;
el.maxlength = 40;
firstCell.appendChild(el);
var secondCell = row.insertCell(1);
var el2 = document.createElement('input');
el2.type = 'text';
el2.name = 'zimmob_' + jj;
el2.id = 'zimmob_' + jj;
el2.size = 13;
el2.maxlength = 13;
secondCell.appendChild(el2);
// alert(i);
jj++;
makhtab.hh.value=jj;
alert(jj);
}
</script>
<script language="javascript" type="text/javascript">
var ii=1;
function addalRow()
{
// alert(ii);
var tbl = document.getElementById('alimtable');
var lastRow = tbl.rows.length;
var iteration = lastRow - 1;
var row = tbl.insertRow(lastRow);
var firstCell = row.insertCell(0);
var el = document.createElement('input');
el.type = 'text';
el.name = 'alimname_' + ii;
el.id = 'alimname_' + ii;
el.size = 40;
el.maxlength = 40;
firstCell.appendChild(el);
var secondCell = row.insertCell(1);
var el2 = document.createElement('input');
el2.type = 'text';
el2.name = 'alimmob_' + ii;
el2.id = 'alimmob_' + ii;
el2.size = 13;
el2.maxlength = 13;
secondCell.appendChild(el2);
var thirdCell = row.insertCell(2);
var element4 = document.createElement("select");
element4.name ='qabil_'+ii;
var option1 = document.createElement("option");
option1.value='';
option1.innerHTML='';
element4.appendChild(option1);
var option2 = document.createElement("option");
option1.value='MUFTI';
option1.innerHTML='MUFTI';
element4.appendChild(option1);
var option3 = document.createElement("option");
option2.value='AALIM';
option2.innerHTML='AALIM';
element4.appendChild(option2);
var option4 = document.createElement("option");
option3.value='QARI';
option3.innerHTML='QARI';
element4.appendChild(option3);
var option5 = document.createElement("option");
option4.value='HAFIZ';
option4.innerHTML='HAFIZ';
element4.appendChild(option3);
thirdCell.appendChild(element4);
// alert(i);
ii++;
makhtab.rr.value=ii;
alert(ii);
}
</script>
<script type="text/javascript" src="tran/js/jquery-1.6.1.min.js"></script>
<script type="text/javascript" src="tran/js/jquery-ui-1.8.14.custom.min.js"></script>
<script type="text/javascript" src="tran/js/jq-ac-script.js"></script>
<SCRIPT language=Javascript>
<!--
function isNumberKey(evt)
{
var charCode = (evt.which) ? evt.which : event.keyCode
if (charCode > 31 && (charCode < 48 || charCode > 57))
return false;
return true;
}
//-->
</SCRIPT>
</head>
<body id="main_body" >
<div id="form_container">
<form id="makhtab" class="appnitro" enctype="multipart/form-data" method="POST" onsubmit="return checkForm()">
<div class="form_description">
<br />
<h2>Makhtab Details</h2>
</div>
<table border="0px" width="100%">
<tr>
<td align="right"><label class="description" for="element_1">Code</label></td><td><input name="code" type="text" maxlength="11" size="11" Placeholder="Please enter a code" value="<?php echo $newsid; ?>" disabled="disabled"/></td>
</tr>
<tr>
<td align="right"><label class="description" for="element_1">Name</label></td><td><input id="name" name="name" onkeypress="" tabindex="1"type="text" maxlength="40" size="40" value="<?php echo $cname; ?>"/></td></td>
</tr>
<tr>
<td align="right"><label class="description" for="element_1">Address</label></td><td><input id="add1" name="add1" type="text" maxlength="80" size="80" value="<?php echo $cadd1; ?>"/></td></td>
</tr>
<tr>
<td align="right"></td><td><input id="add2" name="add2" type="text" maxlength="80" size="80" value="<?php echo $cadd2; ?>"/></td>
</tr>
<tr>
<td align="right"></td><td><input id="add3" name="add3" type="text" maxlength="80" size="80" value="<?php echo $cadd3; ?>"/></td></td>
</tr>
<tr>
<td align="right"><label class="description" for="element_1">Pin</label></td><td><input id="pin" name="pin" type="text" maxlength="10" size="10" value="<?php echo $cpin; ?>"/></td>
</tr>
<tr>
<td align="right"><label class="description" for="element_1">Telephone</label></td><td><input id="contact" name="contact" type="text" maxlength="10" size="10" value="8082034771"/></td>
</tr>
<tr>
<td align="right"><label class="description" for="element_1">Center</label></td><td><select name="cmbcen" class="element text medium" />
<option value="<?php echo $ccen; ?>"><?php echo $ccen; ?></option>
<?php
$result = mysql_query("SELECT code, `name` FROM centre") or die(mysql_error());
while ($coun = mysql_fetch_array($result)) {
echo "<option value='$coun[name]'>$coun[name]</option>";
}
?>
</select>
</tr>
<tr>
<td align="right"><label class="description" for="element_1">City</label></td><td><select id="cmbcity" name="cmbcity" class="element text medium" style="font-size:14px;">
<option value="<?php echo $ccity; ?>"><?php echo $ccity; ?></option>
<?php
$result = mysql_query("SELECT `name` FROM city ") or die(mysql_error());
while ($coun = mysql_fetch_array($result)) {
echo "<option value=".$coun['name'].">".$coun['name']."</option>";
}
?></select>
</td>
</tr>
<tr>
<td align="right"><label class="description" for="element_1">Tehsil</label></td><td><select id="cmbteh" name="cmbteh" class="element text medium" style="font-size:14px;">
<option value="<?php echo$cteh; ?>"><?php echo$cteh; ?></option>
<?php
$result = mysql_query("SELECT `name` FROM tehsil ") or die(mysql_error());
while($coun = mysql_fetch_array($result)) {
echo "<option value=".$coun['name'].">".$coun['name']."</option>";
}
?></select>
</td></tr>
<tr>
<td align="right"><label class="description" for="element_1">District</label></td><td><select id="cmbdist" name="cmbdist" class="element text medium" style="font-size:14px;">
<option value="<?php echo $cdist; ?>"><?php echo $cdist; ?></option>
<?php
$result = mysql_query("SELECT `name` FROM district ") or die(mysql_error());
while($coun = mysql_fetch_array($result)) {
echo "<option value=".$coun['name'].">".$coun['name']."</option>";
}
?></select>
</td></tr>
<tr>
<td align="right"><label class="description" for="element_1">State</label></td><td><select id="cmbstate" name="cmbstate" class="element text medium" style="font-size:14px;">
<option value="<?php echo $cstate; ?>"><?php echo $cstate; ?></option>
<?php
$result = mysql_query("SELECT `name` FROM state ") or die(mysql_error());
while ($coun = mysql_fetch_array($result)) {
echo "<option value=".$coun['name'].">".$coun['name']."</option>";
}
?></select>
</td></tr>
<tr>
<td align="right"><label class="description" for="element_1">Country</label></td><td><select id="cmbcoun" name="cmbcoun" class="element text medium" style="font-size:14px;">
<option value="<?php echo $ccoun; ?>"><?php echo $ccoun; ?></option>
<?php
$result = mysql_query("SELECT `name` FROM country ") or die(mysql_error());
while($coun = mysql_fetch_array($result)) {
echo "<option value=".$coun['name'].">".$coun['name']."</option>";a
}
?></select>
</td></tr>
</table> <br /><p style="border-bottom: 1px dotted #ccc;"></p><br />
<div class="form_description">
<h2>Zimmedar Details</h2>
</div>
<table id="zimtable" border="0px" size="100px" cellspacing="0" cellpadding="2">
<tr>
<td><strong>Zimmedar Name</strong></td>
<td><strong>Mobile</strong> </td>
</tr>
<?php
$zim = mysql_query("SELECT * FROM `makhzim` WHERE makhcode='$newsid' ORDER BY srno")or die(mysl_error());
$ctr= 0;
while ($zrow = mysql_fetch_array($zim)){
$ctr++;
echo"<tr>";
echo "<td><input name='zimname_$ctr' type='text' id='zimname_$ctr' size='40' maxlength='20' value=$zrow[name] /></td>";
echo "<td><input name='zimmob_$ctr' type='text' id='zimmob_$ctr' size='13' maxlength='20' value=$zrow[mobile] /></td>";
echo "</tr>";
}?>
</table>
<input type="button" value="Add" onclick="addRow();" /><input name="hh" type="hidden" id="hh" value="<?php echo $ctr; ?>"/>
<br /><p style="border-bottom: 1px dotted #ccc;"></p><br />
<div class="form_description">
<h2>Muallim Details</h2>
<!--<p>This is your form description. Click here to edit.</p>-->
</div>
<table id="alimtable" border="0px" size="100px" cellspacing="0" cellpadding="2">
<tr>
<td><strong>Muallim Name</strong></td>
<td><strong>Mobile</strong> </td>
<td><strong>Qabiliyat</strong> </td>
</tr>
<?php
$alim = mysql_query("SELECT * FROM `makhalim` WHERE makhcode='$newsid' ORDER BY srno") or die(mysql_error());
$mctr = 0;
while($arow = mysql_fetch_array($alim)){
$ctr++;
echo "<tr>";
echo "<td><input name='alimname_$mctr' type='text' id='alimname_$mctr' size='40' value=$arow[name] maxlength='20' /></td>";
echo "<td><input name='alimmob_$mctr' type='text' id='alimmob_$mctr' size='13' maxlength='20' value=$arow[mobile] /></td>";
echo "<td><select id='qabil' name='qabil_$mctr' class='element text large' style='font-size:14px;'/>
<option value='$arow[qabiliyat]'>$arow[qabiliyat]</option>
<option value=''></option>
<option value='MUFTI'>MUFTI</option>
<option value='AALIM'>AALIM</option>
<option value='QARI'>QARI</option>
<option value='HAFIZ'>HAFIZ</option>
</select></td>";
echo"</tr>";
}
?>
</table>
<input type="button" value="Add" onclick="addalRow();" /><input name="rr" type="hidden" id="rr" value="<?php echo $mctr; ?>" />
<br /><p style="border-bottom: 1px dotted #ccc;"></p><br />
<table border="0px" width="85%">
<tbody><tr>
<td width="105"><label class="description">No. of Students</label></td>
<td width="65"><input type="text" name="stu" onkeypress="return isNumberKey(event)" size="5" maxlength="5" value="<?php echo $cstu; ?>"></input></td>
<td width="105"><label class="description">No. of Batches</label></td><td width="14"><input type="text" name="batch" onkeypress="return isNumberKey(event)" size="5" maxlength="3" value="<?php echo $cbatch; ?>"></input></td>
</tr>
<tr>
</tr>
</tbody>
</table>
<br /><p style="border-bottom: 1px dotted #ccc;"></p><br />
<input type="submit" name="submit" value="Update"> <input type="submit" name="close" value="Exit"/>
</form>
</div>
</body>
</html>
<?php
}
if(isset($_POST['close'])){
header("Location: makh_tab.php");
}
?>