html - send only field boxes filled. if empty then do not send in email. php form to email -

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i have simple form email in php. nice thing form in send php code not have write out fields name.for example, not have write this:

$msg .= "$_post[contactname]     contact name:     contactname\n"

in code, have write is:

foreach ($_post $field=>$value) {  $body .= "$field: $value\n";

the form working perfectly. sending this:

contactname: name here businessname: business name here emailaddress: email@email.com email_confirmation:  phonenumber: 714-555-5555

however, wish happen: if field left empty or web user not fill field box, form should not send field. example: web user decides not fill in contactname , or businessname. form should send format:

emailaddress: email@email.com email_confirmation:  phonenumber: 714-555-5555

noticed no mention of contactname: , businessname:

please help! appreciate it. -michelle ha.

here php send code:

if email_confirmation field empty if(isset($_post['email_confirmation']) && $_post['email_confirmation'] == ''){      // put email address here     $youremail = 'bomandty@gmail.com';      // prepare "pretty" version of message     $body .= "thank request. soon.";     $body .= "\n";     $body .= "\n";     foreach ($_post $field=>$value) {      $body .= "$field: $value\n";      $body .= "\n";     }      $ccuser = $_post['emailaddress'];      // use submitters email if supplied 1     // (and isn't trying hack form).     // otherwise send email address.     if( $_post['emailaddress'] && !preg_match( "/[\r\n]/", $_post['emailaddress']) ) {       $headers = "from: $_post[emailaddress]";     } else {       $headers = "from: $youremail";     }      // finally, send message     mail($youremail, 'subject line here', $body, $headers, $ccuser );  }  // otherwise, let spammer think got message through 

foreach ($_post $field=>$value) {  if($value != ''){ $body .= "$field: $value\n"; } }

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