Contact Form not validated by W3C checks

I have uploaded to two 'raw' sample .php files to my site to test out how they look and work. And thought it was a good idea at that early stage to check them out with the W3C online validation service. But neither of them pass the tests, and pages will not validate.

The CSS validator gives it the all clear. But not the xhtml one ... is that to do with it being a php page?

this is the validation report:

Line 191, Column 42: Attribute "name" exists, but can not be used for this element.
… <form action="" method="post" name="emailContact" id="emailContact" onsubmit
&#9993;
You have used the attribute named above in your document, but the document type you are using does not support that attribute for this element. This error is often caused by incorrect use of the "Strict" document type with a document that uses frames (e.g. you must use the "Transitional" document type to get the "target" attribute), or by using vendor proprietary extensions such as "marginheight" (this is usually fixed by using CSS to achieve the desired effect instead).

This error may also result if the element itself is not supported in the document type you are using, as an undefined element will have no supported attributes; in this case, see the element-undefined error message for further information.

How to fix: check the spelling and case of the element and attribute, (Remember XHTML is all lower-case) and/or check that they are both allowed in the chosen document type, and/or use CSS instead of this attribute. If you received this error when using the <embed> element to incorporate flash media in a Web page, see the FAQ item on valid flash.

Line 210, Column 193: required attribute "rows" not specified
…ServerError').style.display='none'" ></textarea>
&#9993;
The attribute given above is required for an element that you've used, but you have omitted it. For instance, in most HTML and XHTML document types the "type" attribute is required on the "script" element and the "alt" attribute is required for the "img" element.

Typical values for type are type="text/css" for <style> and type="text/javascript" for <script>.

Line 210, Column 193: required attribute "cols" not specified
…ServerError').style.display='none'" ></textarea>
&#9993;
The attribute given above is required for an element that you've used, but you have omitted it. For instance, in most HTML and XHTML document types the "type" attribute is required on the "script" element and the "alt" attribute is required for the "img" element.

Typical values for type are type="text/css" for <style> and type="text/javascript" for <script>.