php - Cakephp input prompt text -

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i have following input field in form:

  echo $this->form->input('website_name');

now want display prompt text when user starts type disapears

i have tried following:

  echo $this->form->input('website_name'),array('namespace'=>'hello world');    echo $this->form->input('website_name'),array('title'=>'hello world');   echo $this->form->input('website_name'),array('placeholder' =>'hello world');

but no luck. know how prompt text on these text fields?

you can use placeholder instead of name , title.

echo $this->form->input('website_name',array('placeholder'=>'hello world'));

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