Display form validation errors next to each field - php

Question

I am working on a simple contact form written in php and have almost everything setup as I would like for it to be except right now, all validation errors are displaying in a div on the top of my form, and I would like to change the code below so they are displayed next to the form field that caused the error, but I am not sure how to accomplish this so I have come to the experts for some advise.
PHP Validation Routine
$frm_valid = new Validate();
if(isset($_POST['submit'])){
$rules=array(
array('Type'=>'Required','Var'=>$_POST['name'],'Msg'=>'Name field is required.'),
array('Type'=>'Required','Var'=>$_POST['email'],'Msg'=>'Email address field is required.'),
array('Type'=>'Email','Var'=>$_POST['email'],'Msg'=>'Your email address format is invalid.'),
array('Type'=>'Required','Var'=>$_POST['subject'],'Msg'=>'Subject field is required.'),
array('Type'=>'Required','Var'=>$_POST['message'],'Msg'=>'Message field is required.'),
);
$result = $frm_valid->Valid($rules);
if(is_array($result)){
// Print validation errors (if any)
echo('<div"><b>The form cannot be submitted until the following errors are corrected.</b><ul>');
foreach($result as $key=>$val){
echo '<li>'.$val.'</li>';
}
echo('</ul></div><br />');
}
else {
// Do something else.
}
}
Forms HTML
<form action="<? echo htmlentities($_SERVER['PHP_SELF']); ?>" method="post">
<input type="text" name="name" value="" /> <br />
<input type="text" name="email" value="" /> <br />
<input type="text" name="subject" value="" /> <br />
<textarea name="message" cols="80" rows="7"></textarea> <br />
<input type="submit" name="submit" value="Send" />
</form>

Answer 1

You need to change the whole code for this!!! The structure, perhaps this way:
<form action="<?php echo htmlentities($_SERVER['PHP_SELF']); ?>">
<ul>
<li>
<label>
<span>Name</span>
<input type="text" name="name" />
<small class="errorText"><?php echo ($_POST["name"] == "") ? "This field is required" : ""; ?></small>
</label>
</li>
<li>
<label>
<span>Email</span>
<input type="text" name="email" />
<small class="errorText"><?php echo ($_POST["email"] == "") ? "This field is required" : ""; ?></small>
</label>
</li>
<li>
<label>
<span>Subject</span>
<input type="text" name="subject" />
<small class="errorText"><?php echo ($_POST["subject"] == "") ? "This field is required" : ""; ?></small>
</label>
</li>
<li>
<label>
<span>Message</span>
<textarea name="message" cols="80" rows="7"></textarea>
<small class="errorText"><?php echo ($_POST["message"] == "") ? "This field is required" : ""; ?></small>
</label>
</li>
<li>
<input type="submit" name="submit" value="Send" />
</li>
</ul>
</form>
And the CSS for the same:
* {font-family: Segoe UI, Tahoma;}
h1 {font-weight: bold; font-size: 14pt; padding: 5px 0; margin: 5px 0; border: 1px solid #999; border-width: 1px 0;}
input[type='submit'] {padding: 5px 20px; cursor: pointer;}
ul, li {display: block; list-style: none; margin: 0; padding: 0;}
ul li {padding: 5px 0;}
ul li label span {display: block; cursor: pointer;}
ul li label .errorText {color: #f00; font-weight: bold; vertical-align: top;}
ul li label textarea {width: 300px;}
You can see a live demo here: Demo
Error Handling in PHP
Keep an error variable for each field. Say,
<?php
$error = array(
"name" => "",
"email" => "",
"subject" => "",
"message" => ""
);
?>
Update them with the errors and display them below.
<?php
if (empty()$_POST["email"])
$error["email"] = "Email is required!";
elseif (!isEmail($_POST["email"]))
$error["email"] = "Not a Valid Email!";
?>
If there are no errors, it would be empty and the user doesn't see the error message. In your Forms Code, you need to just update this way:
<small class="errorText"><?php echo $error["name"]; ?></small>
<small class="errorText"><?php echo $error["email"]; ?></small>
where in the backend, the $error["email"] would have either "This field is required" or "Not a valid email address!".

Answer 2

You can use the following way if your every field has a single error :
<input name='myfield'>
#if ($errors->has('myfield'))
<span style="color:red;">
{{ $errors->first('myfield') }}
</span>
#endif