PHP Conditional Field Display Joomla - php

Question

Basically I need to call a field (wrapped in a div) if the field has a value. I do not want the field or div to display if the field has no value. My PHP knowledge is dire but here is what I have to work with.
Here are instructions provided to me on how to call a custom field by ID:
$cust_1 = $this->fields->getFieldByCaption('Custom Text'); // getFieldByCaption() allow you to get the field by the Caption. This is not the best way to get a field since changing the caption in the back-end will break the reference.
echo '<br />Field ID: ' . $cust_1->getId();
$cust_2 = $this->fields->getFieldById(29); // getFieldById() is the ideal way of getting a field. The ID can be found at 'Custom Fields' section in Mosets Tree's back-end.
echo '<br />Name: ' . $cust_2->getName();
echo '<br />Has Caption? ' . (($cust_2->hasCaption()) ? 'Yes' : 'No');
echo '<br />Caption: ' . $cust_1->getCaption();
echo '<br />Value: ' . $cust_2->getValue();
echo '<br />Output: ' . $cust_2->getOutput(1);
echo '<hr />';
$this->fields->resetPointer();
while( $this->fields->hasNext() ) {
$field = $this->fields->getField();
echo '<br /><strong>' . $field->getCaption() . '</strong>';
echo ': ';
echo $field->getOutput(1); // getOutput() returns the formatted value of the field. ie: For a youtube video, the youtube player will be loaded
// echo $field->getValue(); // getValue() returns the raw value without additional formatting. ie: When getting value from a Online Video field type, it will return the URL.
$this->fields->next();
}
Here is the code I am working with and need help to try and do what I need it to as detailed above:
<?php
if( !is_null($this->fields->getFieldById(35)) ) {
$value = $field->getValue();
$hasValue = $field->hasValue();
$field = $this->fields->getField();
if( $hasValue )
{
echo '<div class="lin" id="lphn">'; {
echo $cust_2 = $this->fields->getFieldById(35);
echo $cust_2->getOutput(1);
echo '</div>';
}
else {
// Print nothing.
}
}
}
?>