Using TextInput component to send info on PHP

Hy, i whant to make a form in flash with components, but i don’t know how to set ,the of the variable’’ intro the component , because i whant to use that varabile in a PHP script ! For example when i set the name of the var of a Text Box ( INput text) it is oky ! but where is set the name for the variable into the component InputText !!!

Thank you , some tutorials will be useful

PS sorry for my english