Example 1

$form->addInput('text', 'input-a', '', 'Default tooltip', 'required, data-tooltip=I\'m a default tooltip');
$form->addInput('text', 'input-z', '', 'Tooltip with animation', 'required, data-tooltip=I\'m a default tooltip with a perspective animation, data-animation=perspective');
$form->addInput('text', 'input-e', '', 'Delayed Tooltip', 'required, data-tooltip=I appear after a delay of 2000 milliseconds, data-delay=2000');
$form->addInput('text', 'input-r', '', 'Positioned tooltip', 'required, data-tooltip=I\'m positionned on the left start, data-placement=left-start');
$form->addInput('text', 'input-t', '', 'Light theme', 'required, data-tooltip=Light theme, data-theme=light');
$form->addInput('text', 'input-t', '', 'Light Border theme', 'required, data-tooltip=Light Border theme, data-theme=light-border');
$form->addInput('text', 'input-t', '', 'Material theme', 'required, data-tooltip=Material theme, data-theme=material');
$form->addInput('text', 'input-t', '', 'Translucent theme', 'required, data-tooltip=Translucent theme, data-theme=translucent');
$form->addInput('text', 'input-u', '', 'Tooltip on click', 'required, data-tooltip=Click to show / hide, data-trigger=click');

$form->addPlugin('tooltip', '[data-tooltip]');

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<div class="bs5-form-stacked-element mb-3">
	<label for="input-a" class="form-label">
		Default tooltip <sup class="text-danger">* </sup>
	</label>
	<input id="input-a" name="input-a" type="text" value="" required data-tooltip="I'm a default tooltip" class="form-control">
</div>
<div class="bs5-form-stacked-element mb-3">
	<label for="input-z" class="form-label">
		Tooltip with animation <sup class="text-danger">* </sup>
	</label>
	<input id="input-z" name="input-z" type="text" value="" required data-tooltip="I'm a default tooltip with a perspective animation" data-animation="perspective" class="form-control">
</div>
<div class="bs5-form-stacked-element mb-3">
	<label for="input-e" class="form-label">
		Delayed Tooltip <sup class="text-danger">* </sup>
	</label>
	<input id="input-e" name="input-e" type="text" value="" required data-tooltip="I appear after a delay of 2000 milliseconds" data-delay="2000" class="form-control">
</div>
<div class="bs5-form-stacked-element mb-3">
	<label for="input-r" class="form-label">
		Positioned tooltip <sup class="text-danger">* </sup>
	</label>
	<input id="input-r" name="input-r" type="text" value="" required data-tooltip="I'm positionned on the left start" data-placement="left-start" class="form-control">
</div>
<div class="bs5-form-stacked-element mb-3">
	<label for="input-t" class="form-label">
		Light theme <sup class="text-danger">* </sup>
	</label>
	<input id="input-t" name="input-t" type="text" value="" required data-tooltip="Light theme" data-theme="light" class="form-control">
</div>
<div class="bs5-form-stacked-element mb-3">
	<label for="input-t" class="form-label">
		Light Border theme <sup class="text-danger">* </sup>
	</label>
	<input id="input-t" name="input-t" type="text" value="" required data-tooltip="Light Border theme" data-theme="light-border" class="form-control">
</div>
<div class="bs5-form-stacked-element mb-3">
	<label for="input-t" class="form-label">
		Material theme <sup class="text-danger">* </sup>
	</label>
	<input id="input-t" name="input-t" type="text" value="" required data-tooltip="Material theme" data-theme="material" class="form-control">
</div>
<div class="bs5-form-stacked-element mb-3">
	<label for="input-t" class="form-label">
		Translucent theme <sup class="text-danger">* </sup>
	</label>
	<input id="input-t" name="input-t" type="text" value="" required data-tooltip="Translucent theme" data-theme="translucent" class="form-control">
</div>
<div class="bs5-form-stacked-element mb-3">
	<label for="input-u" class="form-label">
		Tooltip on click <sup class="text-danger">* </sup>
	</label>
	<input id="input-u" name="input-u" type="text" value="" required data-tooltip="Click to show / hide" data-trigger="click" class="form-control">
</div>

Example 2 - Tooltip with HTML content

$form = new Form('plugins-tooltip-form-2', 'vertical');

// create a HTML template with the tooltip HTML content inside
$form->addHtml('<template id="tooltip-html-content"><h5 class="px-3 py-2 bg-warning">Tooltip title</h5><p>You can add any HTML content here</p></template>');
$form->addInput('text', 'input-u', '', 'Tooltip with HTML content', 'required, data-tooltip=true, data-content-src=#tooltip-html-content, data-allow-html=true');

$form->addPlugin('tooltip', '[data-tooltip]');

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<template id="tooltip-html-content">
	<h5 class="px-3 py-2 bg-warning">
		Tooltip title
	</h5>
	<p>
		You can add any HTML content here
	</p>
</template>
<div class="bs5-form-stacked-element mb-3">
	<label for="input-u" class="form-label">
		Tooltip with HTML content <sup class="text-danger">* </sup>
	</label>
	<input id="input-u" name="input-u" type="text" value="" required data-tooltip="true" data-content-src="#tooltip-html-content" data-allow-html="true" class="form-control">
</div>