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PHP 基础疑问，请各位高手帮帮我
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嗨！各位PHP高手，请帮帮我这位新手，好吗？谢谢！！！我的Code如下：
<?php
session_start();
$_SESSION['Name'] = $_POST['Name'];
$_SESSION['sex'] = $_POST['sex'];
$_SESSION['Code'] = $_POST['Code'];
$_SESSION['good'] = $_POST['good'];
?>
<html>
<head>
<title>Testing</title>
<meta http-equiv="Content-Type" c>
<head>
<body>
<?php
function CheckBoxValue($chekboxvalue) {
if (isset($_POST["hobby1"])) {
$ArrayOfSelection = $_POST["hobby1"];
for ($x = 0; $x < count($ArrayOfSelection); $x++) {
if ($ArrayOfSelection[$x] == $chekboxvalue) {
echo ("CHECKED");
break;
}
}
}
}
?>
<?php
if ($_POST['change'] == 'change') {
if (isset($_POST['Hobby']) && !empty($_POST['Hobby'])) {
$hobby = stripslashes($_POST['Hobby']);
$hobby = unserialize($hobby);
for($i=0;$i<3;$i++) {
if ($hobby[$i]=='Gaming') {
$temp = $hobby[$i];
$hobby[$i] = $hobby[0];
$hobby[0] = $temp;
}
if ($hobby[$i]=='Cooking') {
$temp = $hobby[$i];
$hobby[$i] = $hobby[1];
$hobby[1] = $temp;
}
if ($hobby[$i]=='Swimming') {
$temp = $hobby[$i];
$hobby[$i] = $hobby[2];
$hobby[2] = $temp;
}
}
foreach($hobby as $key => $val) {
if (empty($val)) {
unset($hobby[$key]);
}
}
}
}
if (isset($_POST['Code'])) {
$Code= $_POST['Code'];
settype($Code,integer);
}
if ($_POST['submit'] == 'submit')
{
if (($_POST["Name"]!="")&&($_POST["hobby1"]!="")&&($_POST["sex"]!="")&&($_POST["good"]!=""))
{
if(($_POST["Code"]!="")&&(ereg ("(^[1-9])",$Code)))
{
$Name=$_POST['Name'];
$sex=$_POST['sex'];
$good=$_POST['good'];
if($_POST["hobby1"])
{
foreach($_POST['hobby1'] as $value)
{
$hobby2=join (', ', $_POST['hobby1']);
$test=count($_POST['hobby1']);
}
$serializeHobbies = serialize($_POST["hobby1"]);
}
echo
("
<fieldset style='border: 1px ridge #0000ff; background: #ffffff; width: 350px;'>
<b>Name:</b>$Name <br>
<b>Hobby:</b> $hobby2<br>
<b>Sex:</b> $sex <br>
<b>Goods Name</b> <b>Quantity</b><br>
<I>A.</I> $good $Code
</fieldset></br>");
echo
("<form name='frmtest' method = 'post' action='test.php'>
<input type = 'hidden' name = 'Name' value = '$Name'>
<input type = 'hidden' name = 'sex' value = '$sex'>
<input type = 'hidden' name = 'Code' value = '$Code'>
<input type = 'hidden' name = 'good' value = '$good'>
<input type = 'hidden' name = 'Hobby' value = '$serializeHobbies'>
<br>
<input type = 'submit' name = 'change' value = 'change'><br><br>
<input type = 'submit' name = 'submit' value = 'submit'>
</form>");
exit;
}
else
{
$error1="Quantity Cannot Empty/Only Number!!!";
}
}
else
{$error="Cannot Empty!!!";}
}
if ($_POST['submit'] == 'submit')
{
}
?>
<?php echo $error;?><?php echo $error1;?>
<form name="frmtest" method="post" action="test.php">
<p>
<strong>Name:</strong>
<input type="text" name="Name" value="<?php echo $_SESSION['Name'] ?>">
<br>
<br>
<strong>Hobby:</strong><br>
<input name="hobby1[]" type="checkbox" value="Gaming" <?php CheckBoxValue("Gaming"); ?><?php if (isset($hobby[0])) echo "checked"; ?>>
Gaming
<br>
<input name="hobby1[]" type="checkbox" value="Cooking" id="hobby1" <?php CheckBoxValue("Cooking"); ?><?php if (isset($hobby[1])) echo "checked"; ?>>
Cooking
<br>
<input name="hobby1[]" type="checkbox" value="Swimming"<?php CheckBoxValue("Swimming"); ?> <?php if (isset($hobby[2])) echo "checked"; ?>>
Swimming
<p><strong>Sex:</strong><br>
<input type="radio" name="sex" value="M"<?php echo (($_SESSION['sex'] == "M")?"CHECKED":""); ?>>
Male
<input type="radio" name="sex" value="F"<?php echo (($_SESSION['sex'] == "F")?"CHECKED":""); ?>>
Female
<table width="293" border="1">
<tr>
<td width="180" bgcolor="#FFFF00"><div align="center"><strong>Goods</strong></div></td>
<td width="97" bgcolor="#FFFF00"><div align="center"><strong>Quantity</strong></div></td>
</tr>
<tr>
<td>A.
<input name="good" type="text" size="10" value="<?php echo $_SESSION['good'] ?>"></td>
<td><input name="Code" type="text" size="3" maxlength="3" value="<?php echo $_SESSION['Code'] ?>"></td>
</tr>
<tr>
<td>B.
<input name="good2" type="text" id="good2" size="10"></td>
<td><input name="Code2" type="text" size="3" maxlength="3"></td>
</tr>
</table>
<p>
<input type="submit" name="submit" value="submit">
</form>
</body>
</html> |
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发表于 2-4-2008 10:16 PM
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楼主 |
发表于 2-4-2008 10:24 PM
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问题一：我要如何才能够做到“Code”栏位没有输入时，错误讯息显示的同时栏位不会出现零且栏位上只可输入数目字？
问题二：我要如何才能够做到使用户顺序的输入资料？例如不可以不输入Row A 就跑去输入Row B。
问题三：我要如何检查用户一定要完成Row A；其次Row B 可以不输入。但Row B 一旦有资料在“good2”或“code2”里，要如何检查另外一个栏位一定要输入？
问题四：我要如何才能够做到<fieldset>排列整齐。例如当所有的资料输入正确时，按Submit钮，图框底线根据有多少Row而排列整齐。 |
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发表于 3-4-2008 11:08 AM
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1) 检查$_POST['Code']。如果是Empty string ''，就不要settype($Code,integer); ，直接放empty string。
栏位只可放数字，你可以用php 的is_numeric，或用以下的function (integer only)
function is_integer($input) {
// Accept positive and negetive integer
if (ereg("^-{0,1}[0-9]+$", $input))
return true;
else
return false;
}
2) 用javascript，在Row B加 onchange event。当user 在Row B 打字时，用javascript 检查 Row A 是否empty。如是，focus on Row A，然后Alert。
3) 在submit button加onclick event。检查Row B看看是不是一个又record，一个没有record。如是，alert user，然后 return false。
4) 不明白。。。。
其实如果你不要用Javascript 也行。就是每次Submit后，你必须逐一检查每个textbox 的record，做validation。如有不复合你的要求，就show error message，如果全都对，那才继续proceed。 |
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发表于 3-4-2008 11:49 AM
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楼主 |
发表于 3-4-2008 09:08 PM
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发表于 4-4-2008 11:55 AM
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<?php
function intCheck($input) {
// Accept positive and negetive integer
if (ereg("^-{0,1}[0-9]+$", $input))
return true;
else
return false;
}
if (isset($_POST)) {
// something has been posted.
$code = $_POST['Code'];
$code2 = $_POST['Code2'];
$good = $_POST['good'];
$good2 = $_POST['good2'];
$error = '';
// Validate code
if (trim($code) == '') {
$error .= "Please enter quantity for Row A.\n";
} else {
// check if it's integer
if (!intCheck($code)) {
$error .= "Quantity 1 is not a valid integer.\n";
}
}
if (trim($good2) == '' && trim($code2) != '') {
// fill in code 2, but not good2
$error .= "Please enter quantity for Row B.\n";
}
if (trim($good2) != '' && trim($code2) == '') {
// fill in good 2, but not code 2
$error .= "Please enter good for Row B.\n";
}
}
if ($error == '') {
// No error. Proceed to process
//...
//....
}
?>
<html>
<head>
<title>Testing</title>
<meta http-equiv="Content-Type">
<script language="JavaScript" type="text/javascript">
function CheckA() {
if (document.forms['frmtest'].good.value == '') {
alert('Please enter Row A first !');
document.forms['frmtest'].Code2.value = '';
document.forms['frmtest'].good2.value = '';
document.forms['frmtest'].good.focus();
return false;
}
if (document.forms['frmtest'].Code.value == '') {
alert('Please enter Row A first !');
document.forms['frmtest'].Code2.value = '';
document.forms['frmtest'].good2.value = '';
document.forms['frmtest'].Code.focus();
return false;
}
}
function submitValidate() {
if (document.forms['frmtest'].good.value == '' || document.forms['frmtest'].Code.value == '') {
alert('Please enter Row A first !');
if (document.forms['frmtest'].good.value == '') {
document.forms['frmtest'].good.focus();
} else {
document.forms['frmtest'].Code.focus();
}
return false;
} else {
return true;
}
}
</script>
</head>
<body>
<?php echo $error;?>
<form name="frmtest" method="post" action="test.php">
<p>
<strong>Name:</strong>
<input type="text" name="Name" value="<?php echo $_POST['Name'] ?>">
<br>
<br>
<strong>Hobby:</strong><br>
<input name="hobby1[]" type="checkbox" value="Gaming">
Gaming
<br>
<input name="hobby1[]" type="checkbox" value="Cooking" id="hobby1">
Cooking
<br>
<input name="hobby1[]" type="checkbox" value="Swimming">
Swimming
<p><strong>Sex:</strong><br>
<input type="radio" name="sex" value="M">
Male
<input type="radio" name="sex" value="F">
Female
<table width="293" border="1">
<tr>
<td width="180" bgcolor="#FFFF00"><div align="center"><strong>Goods</strong></div></td>
<td width="97" bgcolor="#FFFF00"><div align="center"><strong>Quantity</strong></div></td>
</tr>
<tr>
<td>A.
<input name="good" type="text" size="10" value="<?php echo $good; ?>"></td>
<td><input name="Code" type="text" size="3" maxlength="3" value="<?php echo $code; ?>"></td>
</tr>
<tr>
<td>B.
<input name="good2" type="text" id="good2" size="10" onKeyDown="CheckA();" value="<?php echo $good2; ?>"></td>
<td><input name="Code2" type="text" size="3" maxlength="3" onKeyDown="CheckA();" value="<?php echo $Code2; ?>"></td>
</tr>
</table>
<p>
<input type="submit" name="submit" value="submit" onClick="return submitValidate();">
</form>
</body>
</html>
简化版本。看看是你要的效果吗？ |
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楼主 |
发表于 4-4-2008 08:44 PM
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回复 7# yhchan 的帖子
谢谢您！我先试试看。 |
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