[SOLVED] Problem with checking require fields.

ubuntu · May 14, 2007

Dear all, can someone help me what's wrong with my code? The problem is when I send a blank (without select any field) page, no error was display. Thank you for your kind attention.

Form for user to input

table cellpadding="0" cellspacing="0" border="0" width="94%" align="center">
			<tr>
				<td valign="top"><b>From</b></td>
				<td valign="top"><b> : </b></td>
				<td valign="top"><select name="from" class="field">
				<option value="-">---------- Location ----------</option>

				<option value="66">Kuala Lumpur</option>
				<option value="67">Batu Pahat</option>
				<option value="68">Muar</option>
				</select></td>

			</tr>

			<tr>
				<td valign="top"><b>To</b></td>
				<td valign="top"><b> : </b></td>
				<td valign="top"><select name="to" class="field">
				<option value="-">---------- Location ----------</option>

				<option value="66">Kuala Lumpur</option>
				<option value="67">Batu Pahat</option>
				<option value="68">Muar</option>
				</select></td>
			</tr>

		    <tr>
				<td valign="top"><b>Month</b></td>
				<td valign="top"><b> : </b></td>
				<td valign="top"><select name="month" class="field">
				<option value="-">-----------------</option>
				<option value="jan">January</option>
				<option value="feb">February</option>
				<option value="mar">March</option>
				<option value="apr">April</option>
				<option value="may">May</option>
				<option value="jun">June</option>
				<option value="jul">July</option>
				<option value="aug">August</option>
				<option value="sep">September</option>
				<option value="oct">October</option>
				<option value="nov">November</option>
				<option value="dec">December</option>
				</select></td>

			</tr>

		    <tr>
				<td valign="top"><b>Year</b></td>
				<td valign="top"><b> : </b></td>
				<td valign="top"><select name="year" class="field">
				<option value="-">-----------------</option>
				<option value="2007">2007</option>
				<option value="2008">2008</option>
				</select></td>

			</tr>

		    <tr>
				<td valign="top"><b>Day</b></td>
				<td valign="top"><b> : </b></td>
				<td valign="top"><select name="day" class="field">
				<option value="-">-----------------</option>
				<option value="mon">Monday</option>
				<option value="tue">Tuesday</option>
				<option value="wed">Wednesday</option>
				<option value="thu">Thursday</option>
				<option value="fri">Friday</option>
				<option value="sat">Saturday</option>
				<option value="sun">Sunday</option>
				</select></td>

			</tr>

		    <tr>
				<td valign="top"><b>Date</b></td>
				<td valign="top"><b> : </b></td>
				<td valign="top"><select name="day_of_week" class="field">
				<option value="-">-----------------</option>
				<option value="1">1</option>
				<option value="2">2</option>
				<option value="3">3</option>
				<option value="4">4</option>
				<option value="5">5</option>
				<option value="6">6</option>
				<option value="7">7</option>
				<option value="8">8</option>
				<option value="9">9</option>
				<option value="10">10</option>
				<option value="11">11</option>
				<option value="12">12</option>
				<option value="13">13</option>
				<option value="14">14</option>
				<option value="15">15</option>
				<option value="16">16</option>
				<option value="17">17</option>
				<option value="18">18</option>
				<option value="19">19</option>
				<option value="20">20</option>
				<option value="21">21</option>
				<option value="22">22</option>
				<option value="23">23</option>
				<option value="24">24</option>
				<option value="25">25</option>
				<option value="26">26</option>
				<option value="27">27</option>
				<option value="28">28</option>
				<option value="29">29</option>
				<option value="30">30</option>
				<option value="31">31</option>
				</select></td>

			</tr>

		    <tr>
				<td valign="top"><b>Time</b></td>
				<td valign="top"><b> : </b></td>
				<td valign="top"><select name="time" class="field">
				<option value="-">-----------------</option>
				<option value="twelve">12:00pm</option>
				<option value="third">03:00pm</option>
				<option value="fifth">05:00pm</option>
				</select></td>

			</tr>

		    <tr>
				<td valign="top"><b>Quantity</b></td>
				<td valign="top"><b> : </b></td>
				<td valign="top"><select name="quantity" class="field">
				<option value="-">-----------------</option>
				<option value="one">1</option>
				<option value="two">2</option>
				</select></td>

			</tr>

			<tr><td>
				<input type="submit" name="submit" value="Submit">
			</td></tr>
</table>

Code to check require field

<?php
$error = NULL;

if($_POST['from'] == "-"){
    $error .= "Error, you haven't select from field.<br>";
}

if($_POST['to'] == "-"){
    $error .= "Error, you haven't select to field.<br>";
}

if($_POST['month'] == "-"){
    $error .= "Error, you didn't select month.<br>";
}

if($_POST['year'] == "-"){
    $error .= "Error, you didn't select year.<br>";
}

if($_POST['day'] == "-"){
    $error .= "Error, you didn't select day.<br>";
}

if($_POST['day_of_week']  == "-"){
    $error .= "Error, you didn't select date.<br>";
}

if($_POST['time'] == "-"){
    $error .= "Error, you didn't select departure time.<br>";
}

if($_POST['quantity'] == "-"){
    $error .= "Error, you didn't select quantity.<br>";
}

if (!is_null($error)) {
    die($error);
}
?>

Garath531 · May 14, 2007

What happens when you press the submit button? Does it take you to a blank screen, or does it show you the form page again?

StormTheGates · May 14, 2007

I dont see any form around your table telling it to submit anywhere as POST style.

ubuntu · May 14, 2007

When I press the submit button without any field selected, the results page appear without display the error message.

StormTheGates · May 14, 2007

Change your code with stuff like this:

<?php
$error = NULL;

if($_POST['from'] == "-"){
    die("This is working so far!");
    $error .= "Error, you haven't select from field.<br>";
}

if($_POST['to'] == "-"){
    die("This is working so far!");
    $error .= "Error, you haven't select to field.<br>";
}

if($_POST['month'] == "-"){
    die("This is working so far!");
    $error .= "Error, you didn't select month.<br>";
}

if($_POST['year'] == "-"){
    die("This is working so far!");
    $error .= "Error, you didn't select year.<br>";
}

if($_POST['day'] == "-"){
    die("This is working so far!");
    $error .= "Error, you didn't select day.<br>";
}

if($_POST['day_of_week']  == "-"){
    die("This is working so far!");
    $error .= "Error, you didn't select date.<br>";
}

if($_POST['time'] == "-"){
    die("This is working so far!");
    $error .= "Error, you didn't select departure time.<br>";
}

if($_POST['quantity'] == "-"){
    die("This is working so far!");
    $error .= "Error, you didn't select quantity.<br>";
}

if (!is_null($error)) {
    die($error);
}
?>

Tell me what happens.

ubuntu · May 14, 2007

Bro, still the same result.

StormTheGates · May 14, 2007

Aright so its not even picking up the post variables. Two more things:

1. I see in your html you lack a <form action="page.php" method="post"> </form> element? Could that be it?

2. If you have one do this at the very top do this:

$var = $_POST['from'];
die("+$var+");

That will tell you what is being picked up if anything.

ubuntu · May 14, 2007

Bro,

1. My form didn't miss <form action="page.php" method="post"> </form> element.

2. The result display is: ++

StormTheGates · May 14, 2007

You sure? I just tested this code on my server:

<?php
if($_POST['submit']){
$test = $_POST['from'];
die("+$test+");
}
?>
<form action="v.php" method="post">
<table cellpadding="0" cellspacing="0" border="0" width="94%" align="center">
			<tr>
				<td valign="top"><b>From</b></td>
				<td valign="top"><b> : </b></td>
				<td valign="top"><select name="from" class="field">
				<option value="-">---------- Location ----------</option>

				<option value="66">Kuala Lumpur</option>
				<option value="67">Batu Pahat</option>
				<option value="68">Muar</option>
				</select></td>

			</tr>

			<tr>
				<td valign="top"><b>To</b></td>
				<td valign="top"><b> : </b></td>
				<td valign="top"><select name="to" class="field">
				<option value="-">---------- Location ----------</option>

				<option value="66">Kuala Lumpur</option>
				<option value="67">Batu Pahat</option>
				<option value="68">Muar</option>
				</select></td>
			</tr>

		    <tr>
				<td valign="top"><b>Month</b></td>
				<td valign="top"><b> : </b></td>
				<td valign="top"><select name="month" class="field">
				<option value="-">-----------------</option>
				<option value="jan">January</option>
				<option value="feb">February</option>
				<option value="mar">March</option>
				<option value="apr">April</option>
				<option value="may">May</option>
				<option value="jun">June</option>
				<option value="jul">July</option>
				<option value="aug">August</option>
				<option value="sep">September</option>
				<option value="oct">October</option>
				<option value="nov">November</option>
				<option value="dec">December</option>
				</select></td>

			</tr>

		    <tr>
				<td valign="top"><b>Year</b></td>
				<td valign="top"><b> : </b></td>
				<td valign="top"><select name="year" class="field">
				<option value="-">-----------------</option>
				<option value="2007">2007</option>
				<option value="2008">2008</option>
				</select></td>

			</tr>

		    <tr>
				<td valign="top"><b>Day</b></td>
				<td valign="top"><b> : </b></td>
				<td valign="top"><select name="day" class="field">
				<option value="-">-----------------</option>
				<option value="mon">Monday</option>
				<option value="tue">Tuesday</option>
				<option value="wed">Wednesday</option>
				<option value="thu">Thursday</option>
				<option value="fri">Friday</option>
				<option value="sat">Saturday</option>
				<option value="sun">Sunday</option>
				</select></td>

			</tr>

		    <tr>
				<td valign="top"><b>Date</b></td>
				<td valign="top"><b> : </b></td>
				<td valign="top"><select name="day_of_week" class="field">
				<option value="-">-----------------</option>
				<option value="1">1</option>
				<option value="2">2</option>
				<option value="3">3</option>
				<option value="4">4</option>
				<option value="5">5</option>
				<option value="6">6</option>
				<option value="7">7</option>
				<option value="8">8</option>
				<option value="9">9</option>
				<option value="10">10</option>
				<option value="11">11</option>
				<option value="12">12</option>
				<option value="13">13</option>
				<option value="14">14</option>
				<option value="15">15</option>
				<option value="16">16</option>
				<option value="17">17</option>
				<option value="18">18</option>
				<option value="19">19</option>
				<option value="20">20</option>
				<option value="21">21</option>
				<option value="22">22</option>
				<option value="23">23</option>
				<option value="24">24</option>
				<option value="25">25</option>
				<option value="26">26</option>
				<option value="27">27</option>
				<option value="28">28</option>
				<option value="29">29</option>
				<option value="30">30</option>
				<option value="31">31</option>
				</select></td>

			</tr>

		    <tr>
				<td valign="top"><b>Time</b></td>
				<td valign="top"><b> : </b></td>
				<td valign="top"><select name="time" class="field">
				<option value="-">-----------------</option>
				<option value="twelve">12:00pm</option>
				<option value="third">03:00pm</option>
				<option value="fifth">05:00pm</option>
				</select></td>

			</tr>

		    <tr>
				<td valign="top"><b>Quantity</b></td>
				<td valign="top"><b> : </b></td>
				<td valign="top"><select name="quantity" class="field">
				<option value="-">-----------------</option>
				<option value="one">1</option>
				<option value="two">2</option>
				</select></td>

			</tr>

			<tr><td>
				<input type="submit" name="submit" value="Submit">
			</td></tr>
</table>
</form>

And it displayed fine.

Garath531 · May 14, 2007

??? This is weird. It works perfectly on my computer. About the only thing I can think of is that you are going directly to the "Pagename.php". That's the only thing I can do to get this result. ???

ubuntu · May 14, 2007

Thank you StormTheGates & Garath531, now it worked already. I wonder my pc got problem or not? After close the browser and reopen again, it worked. Regards.

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[SOLVED] Problem with checking require fields.

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