Form value validation: not empty

<HTML>
<BODY>
<FORM METHOD="POST" ACTION="FormErrorCheck.php">
<H1>Contact Information</H1>
<TABLE>

<TR>
  <TD><B>Nickname:</B></TD>
  <TD><INPUT TYPE="TEXT" NAME="nickname"></TD>
</TR>

<TR>
  <TD>Title:</TD>
  <TD><INPUT TYPE="TEXT" NAME="title"></TD>
</TR>

<TR>
  <TD><B>First Name:</B></TD>
  <TD><INPUT TYPE="TEXT" NAME="firstname"></TD>
</TR>

<TR>
  <TD>Middle Name:</TD>
  <TD><INPUT TYPE="TEXT" NAME="middlename"></TD>
</TR>

<TR>
  <TD><B>Last Name:</B></TD>
  <TD><INPUT TYPE="TEXT" NAME="lastname"></TD>
</TR>

<TR>
  <TD><B>Primary Email:</B></TD>
  <TD><INPUT TYPE="TEXT" NAME="email"></TD>
  <TD WIDTH="20">&nbsp;</TD>
  <TD>Secondary Email:</TD>
  <TD><INPUT TYPE="TEXT" NAME="secondaryemail"></TD>
</TR>

<TR>
  <TD>Company Name:</TD>
  <TD><INPUT TYPE="TEXT" NAME="companyname"></TD>
</TR>

<TR>
  <TD>Office Address:</TD>
  <TD><INPUT TYPE="TEXT" NAME="officeaddres1"></TD>
  <TD WIDTH="20">&nbsp;</TD>
  <TD>Home Address:</TD>
  <TD><INPUT TYPE="TEXT" NAME="homeaddress"></TD>
</TR>

<TR>
  <TD></TD>
  <TD><INPUT TYPE="TEXT" NAME="officeaddress2"></TD>
</TR>

<TR>
  <TD>City:</TD>
  <TD><INPUT TYPE="TEXT" NAME="officecity"></TD>
  <TD WIDTH="20">&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD><INPUT TYPE="TEXT" NAME="homecity"></TD>
</TR>

<TR>
  <TD>State:</TD>
  <TD><INPUT TYPE="TEXT" NAME="officestate"></TD>
  <TD WIDTH="20">&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD><INPUT TYPE="TEXT" NAME="homestate"></TD>
</TR>

<TR>
  <TD>Zip:</TD>
  <TD><INPUT TYPE="TEXT" NAME="officezip"></TD>
  <TD WIDTH="20">&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD><INPUT TYPE="TEXT" NAME="homezip"></TD>
</TR>

<TR>
  <TD>Phone:</TD>
  <TD><INPUT TYPE="TEXT" NAME="officephone"></TD>
  <TD WIDTH="20">&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD><INPUT TYPE="TEXT" NAME="homephone"></TD>
</TR>

<TR>
  <TD>Birthday:</TD>
  <TD><INPUT TYPE="TEXT" NAME="birthday"></TD>
</TR>

<TR>
  <TD>Spouse Name:</TD>
  <TD><INPUT TYPE="TEXT" NAME="spousename"></TD>
  <TD WIDTH="20">&nbsp;</TD>
  <TD>Childrens' Names:</TD>
  <TD><INPUT TYPE="TEXT" NAME="children"></TD>
</TR>

<TR>
  <TD>Anniversary:</TD>
  <TD><INPUT TYPE="TEXT" NAME="anniversary"></TD>
</TR>

</TABLE>

<BR>
<BR>
<BR>
<INPUT TYPE="SUBMIT" VALUE="Submit">
<BR>
<BR>
<INPUT TYPE="RESET"  VALUE="Clear the Form">

</FORM>
</BODY>
</HTML>

<!-- FormErrorCheck.php
<HTML>
<BODY>
<?php

  $errors=0;
  if (!trim($nickname)) {
      echo "<BR><B>Nickname</B> is required.";
     $errors++;
  }
 
  if (!trim($firstname)) {
      echo "<BR><B>First name</B> is required.";
     $errors++;
  }
 
  if (!trim($lastname)) {
      echo "<BR><B>Last name</B> is required.";
      $errors++;
  }
 
  if (!trim($email)) {
      echo "<BR><B>Primary email address</B> is required.";
      $errors++;
  }

  if ($errors > 0)
      echo "<BR><BR><BR>Please use your browser's back button " .
        "to return to the form, and correct error(s)";
 
?>

</BODY>
</HTML>
-->

Related examples in the same category

1.	Form Data Validation With Error Count
2.	A Sample Form Element Validation Function
3.	Displaying error messages with the form
4.	Elementary Form Validation
5.	Form Example for the Form Validator Script
6.	Validating form data

Form value validation: not empty : Form Validation « Form « PHP

Related examples in the same category