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我有這段代碼來驗證html文本框是否爲空。但我無法弄清楚入場時間和地址有什麼共同之處，他們似乎並不奏效。該代碼是不讀它們，即使我已經輸入對他們的數據：試圖檢查如果html文本框是空的使用php
<html>
<head>
<title>Admission Information Sheet</title>
<meta http-equiv="Content-Type" content="text/html; Western (ISO-8859-1)">
<meta name="author" content=" ">
<title>
<style>
input { font-size: 16px;}
</style>
<?php include('header.php'); ?>
<div id="main_content">
</div>
<?php include('footer.php'); ?>
<table border="1" width="900" border="0" align="left" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<form name="form1.1" method="POST" action="aisaction.php">
<?php
$TELNUM = $_POST[telnum];
$HOSPNUM = $_POST[hnum];
$ROOMNUM = $_POST[rnum];
$LASTNAME = $_POST[lname];
$FIRSTNAME = $_POST[fname];
$MIDNAME = $_POST[mname];
$ADDRESS = $_POST[address];
$NURSE = $_POST[nurse];
$ADATE = $_POST[adate];
$ADTIME = $_POST[adtym];
$CSTAT = $_POST[cs];
$AGE = $_POST[age];
$BDAY = $_POST[bday];
$SEX = $_POST[sex];
?>
<td>
<table width="100%" border="0" cellpadding="2" cellspacing="1" bgcolor="#FFFFFF">
<tr>
<td colspan="12" style="background:#9ACD32; color:white; border:white 1px solid; text-align: center"><strong><font size="3">ADMISSION INFORMATION SHEET</strong></td>
</tr>
<tr>
</td><br>
<td width="54"><font size="3">Hospital #</td>
<td width="3">:</td>
<td width="168"><input type="display" name="hnum" disabled="true" value= "<?php print "$HOSPNUM";?>"><br>
<font color="red">
<?php
if(empty($HOSPNUM))
print "* Hospital Number required!<br>";
?>
</td>
<td width="41"><font size="3">Room #</td>
<td width="3">:</td>
<td width="168"><input type="display" name="rnum" disabled="true" value= "<?php print "$ROOMNUM";?>"><br>
<font color="red">
<?php
if(empty($ROOMNUM))
print "* Room Number required!<br>";
?>
</td>
<td width="67"><font size="3">Admission Date</td>
<td width="3">:</td>
<td width="168"><input type="display" name="adate" disabled="true" value= "<?php print "$ADATE";?>"><br>
<font color="red">
<?php
if(empty($ADATE))
print "* Admission Date required!<br>";
?>
</td>
</tr>
<tr>
<td><font size="3">Last Name</td>
<td>:</td>
<td><input type="display" name="lname" disabled="true" value= "<?php print "$LASTNAME";?>"><br>
<font color="red">
<?php
if(empty($LASTNAME))
print "* Last Name required!<br>";
?>
</td>
<td><font size="3">First Name</td>
<td>:</td>
<td><input type="display" name="fname" disabled="true" value= "<?php print "$FIRSTNAME";?>"><br>
<font color="red">
<?php
if(empty($FIRSTNAME))
print "* First Name required!<br>";
?>
</td>
<td><font size="3">Middle Name</td>
<td>:</td>
<td><input type="display" name="mname" disabled="true" value= "<?php print "$MIDNAME";?>"><br>
<font color="red">
<?php
if(empty($MIDNAME))
print "* Middle Name required!<br>";
?>
</td>
<td width="67"><font size="3">Admission Time</td>
<td width="3">:</td>
<td width="168"><input type="display" name="adtym" disabled="true" value= "<?php print "$ADTIME";?>"><br>
<font color="red">
<?php
if(empty($ADTIME))
print "* Admission Time required!<br>";
?>
</td>
</tr>
<tr>
<td><font size="3">Civil Status</td>
<td>:</td>
<td><input type="display" name="cs" disabled="true" value= "<?php print "$CSTAT";?>"><br>
<font color="red">
<?php
if(empty($CSTAT))
print "* Civil Status required!<br>";
?>
</td>
<td><font size="3">Age</td>
<td>:</td>
<td><input type="display" name="age" disabled="true" value= "<?php print "$AGE";?>"><br>
<font color="red">
<?php
if(empty($AGE))
print "* Age required!<br>";
?>
</td>
<td><font size="3">Birthday</td>
<td>:</td>
<td><input type="display" name="bday" disabled="true" value= "<?php print "$BDAY";?>"><br>
<font color="red">
<?php
if(empty($BDAY))
print "* Birthday required!<br>";
?>
</td>
</tr>
<tr>
<td><font size="3">Address</td>
<td>:</td>
<td><input type="display" name="address" disabled="true" value= "<?php print "$ADDRESS";?>"><br>
<font color="red">
<?php
if(empty($ADDRESS))
print "* Address required!<br>";
?>
</td>
<td><font size="3">Telephone #</td>
<td>:</td>
<td><input type="display" name="telnum" disabled="true" value= "<?php print "$TELNUM";?>"></td>
<font color="red">
<?php
if(empty($TELNUM))
print "* Address required!<br>";
?>
<td width="23"><font size="3">Sex</td>
<td width="3">:</td>
<td width="174"><input type="display" name="sex" disabled="true" value= "<?php print "$SEX";?>"><br>
<font color="red">
<?php
if(empty($SEX))
print "* Gender required!<br>";
?>
</td>
</tr>
<tr>
<td><font size="3">Pls. Check</td>
<td>:</td>
<td><input name="stats1" type="checkbox" id="SSS" value="SSS">SSS</td>
<td><font size="3"></td>
<td>:</td>
<td><input name="stats1" type="checkbox" id="nonmed" value="NonMedicare">Non Medicare</td>
<td><font size="3"></td>
<td>:</td>
<td><input name="stats1" type="checkbox" id="sh" value="stockholder">Stockholder</td>
</tr>
<tr>
<td><font size="3"></td>
<td></td>
<td><input name="stats1" type="checkbox" id="gsis" value="GSIS">GSIS</td>
<td><font size="3"></td>
<td></td>
<td><input name="stats1" type="checkbox" id="senior" value="seniorcitizen">Senior-Citizen</td>
<tr>
<td><font size="3"></td>
<td></td>
<td><input name="stats1" type="checkbox" id="dep" value="dependent">Dependent</td>
<td><font size="3"></td>
<td></td>
<td><input name="stats1" type="checkbox" id="emp" value="employee">Employee</td>
</tr>
<tr>
<td><font size="3">Attending Nurse</td>
<td>:</td>
<td><input type="display" name="nurse" disabled="true" value= "<?php print "$NURSE";?>"><br>
<font color="red">
<?php
if(empty($NURSE))
print "* Admitting/Attending Nurse required!<br>";
?>
</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td><input type="button" value="Back" onClick="history.go(-1);return true;">
<?php
$val1 = $_POST['NURSE'];
if($_POST['NURSE'] != "")
{
?>
<form action="aisaction.php" method="POST" target="_window">
<input type="hidden" name="submit" value="yes">
<input type="submit" value="submit">
</form>
<?php
}
?>
</td>
</td>
</tr>
</table>
</td>
</form>
</tr>
</table>
</head>
</html>
如果你'的print_r（$ _ POST） '，你會得到什麼？還要將鍵名放在引號中，即'$ _POST ['telnum']'而不是'$ _POST [telnum]'。 – 2010-02-27 08:45:19