в 10:37, 26 мая 2010

2010-05-26T10:37:26Z

Admin: 1 версия

2010-05-26T07:04:46Z

1 версия

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==A Sample Form Element Validation Function==



<source lang="html4strict">

<?php
function phone_validate($data, $desc) {
$regex = "/^$[2-9][0-9]{2}$[2-9][0-9]{2}-[0-9]{4}/i";
if(preg_match($regex, $data) != 1) {
return "The "$desc" field isn"t valid!";
}
return true;
}
?>

</source>

==Displaying error messages with the form==



<source lang="html4strict">

<?
if ($_POST["_submit_check"]) {
if ($form_errors = validate_form()) {
show_form($form_errors);
} else {
process_form();
}
} else {
show_form();
}
function process_form() {
print "Hello, ". $_POST["my_name"];
}
function show_form($errors = "") {
if ($errors) {
print "Please correct these errors: <ul><li>";
print implode("</li><li>", $errors);
print "</li></ul>";
}
print<<<_HTML_
<form method="POST" action="$_SERVER[PHP_SELF]">
Your name: <input type="text" name="my_name">
<br/>
<input type="submit" value="Say Hello">
<input type="hidden" name="_submit_check" value="1">
</form>
_HTML_;
}
function validate_form() {
$errors = array();
if (strlen($_POST["my_name"]) < 3) {
$errors[] = "Your name must be at least 3 letters long.";
}
return $errors;
}
?>

</source>

==Elementary Form Validation==



<source lang="html4strict">

<?php
if(isset($_GET["submit"])) {
if(preg_match("/^$([2-9][0-9]{2})$[2-9][0-9]{2}-[0-9]{4}$/i",
$_GET["phone"]) != 1) {
echo "The phone field was invalid<BR>";
}
} else {
/* Code to process form here */
}
?>
<HTML>
<HEAD><TITLE>Elementary form validation</TITLE></HEAD>
<BODY>
<FORM ACTION="<?php echo $_SERVER["PHP_SELF"]; ?>" METHOD=GET>
<INPUT TYPE="hidden" NAME="submit" VALUE="1">
Phone: <INPUT TYPE="text" NAME="phone" SIZE=13 MAXLENGTH=13>
(ex. (333)555-1212)<BR>
<INPUT TYPE="submit" VALUE="Send">
</FORM>
</HTML>

</source>

==Form Data Validation With Error Count==



<source lang="html4strict">
<HTML>
<BODY>
<FORM METHOD="POST" ACTION="FormDataValidationWithErrorCount.php">
<H1>Contact Information</H1>
<TABLE>
<TR>
<TD><B>Nickname:</B></TD>
<TD><INPUT TYPE="TEXT" NAME="nickname"></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"> </TD>
<TD>Secondary Email:</TD>
<TD><INPUT TYPE="TEXT" NAME="secondaryemail"></TD>
</TR>
<TR>
<TD></TD>
<TD><INPUT TYPE="TEXT" NAME="officeaddress2"></TD>
</TR>
<BR>
<BR>
<BR>
<INPUT TYPE="SUBMIT" VALUE="Submit">
<BR>
<BR>
<INPUT TYPE="RESET" VALUE="Clear the Form">
</FORM>
</BODY>
</HTML>



</source>

==Form Example for the Form Validator Script==



<source lang="html4strict">

<?php if($form_errors): ?>
<UL>
<?php foreach($form_errorlist as $val): ?>
<LI><?php echo $val;?>
<?php endforeach; ?>
</UL>
<?php endif; ?>
Please fill out the following form (* = Required)<BR>
<FORM ACTION="<?php echo $_SERVER["PHP_SELF"]; ?>" METHOD=GET>
<INPUT TYPE="hidden" NAME="submit" VALUE="1">
<INPUT TYPE="hidden" NAME="required" VALUE="phone,email,fax">
<INPUT TYPE="hidden" NAME="phone_desc" VALUE="Phone Number">
<INPUT TYPE="hidden" NAME="email_desc" VALUE="Email Address">
<INPUT TYPE="hidden" NAME="fax_desc" VALUE="Fax Number">
Your Name: <INPUT TYPE="text" NAME="name"><BR>
* Your Phone Number:
<INPUT TYPE="text" NAME="phone" VALUE="<?php echo $_GET["phone"]; ?>"><BR>
* Your Email Address:
<INPUT TYPE="text" NAME="email" VALUE="<?php echo $_GET["email"]; ?>"><BR>
* Your Fax Number:
<INPUT TYPE="text" NAME="fax" VALUE="<?php echo $_GET["fax"]; ?>"><BR>
<INPUT TYPE="submit" VALUE="Send">
</FORM>

</source>

==Form value validation: not empty==



<source lang="html4strict">
<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"> </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"> </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"> </TD>
<TD> </TD>
<TD><INPUT TYPE="TEXT" NAME="homecity"></TD>
</TR>
<TR>
<TD>State:</TD>
<TD><INPUT TYPE="TEXT" NAME="officestate"></TD>
<TD WIDTH="20"> </TD>
<TD> </TD>
<TD><INPUT TYPE="TEXT" NAME="homestate"></TD>
</TR>
<TR>
<TD>Zip:</TD>
<TD><INPUT TYPE="TEXT" NAME="officezip"></TD>
<TD WIDTH="20"> </TD>
<TD> </TD>
<TD><INPUT TYPE="TEXT" NAME="homezip"></TD>
</TR>
<TR>
<TD>Phone:</TD>
<TD><INPUT TYPE="TEXT" NAME="officephone"></TD>
<TD WIDTH="20"> </TD>
<TD> </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"> </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>


</source>

==Validating form data==



<source lang="html4strict">

<?
if ($_POST["_submit_check"]) {
if (validate_form()) {
process_form();
} else {
show_form();
}
} else {
show_form();
}
function process_form() {
print "Hello, ". $_POST["my_name"];
}
function show_form() {
print<<<_HTML_
<form method="POST" action="$_SERVER[PHP_SELF]">
Your name: <input type="text" name="my_name">
<br/>
<input type="submit" value="Say Hello">
<input type="hidden" name="_submit_check" value="1">
</form>
_HTML_;
}
function validate_form() {
if (strlen($_POST["my_name"]) < 3) {
return false;
} else {
return true;
}
}
?>

</source>

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PHP/Form/Form Validation - История изменений

в 10:37, 26 мая 2010

Admin: 1 версия