Cannot write class attribute in php file for html element. Here is my code
echo '<div><p class="'.($value->getIsRequire() == 1) ? 'required' : ''.'">
</p> <input type="text" name="field" id="option-value" /></div>';
My output should be if the condition is true the class should be required otherwise the class should be empty but i got output as required text instead of input box.
Result I got is

($value->getIsRequire() == 1) ? 'required' : ''->($value->getIsRequire() == 1 ? 'required' : '')