复选框条件无法正常工作

Question

I'm getting data from this function, now I want checked checkboxes based on my condition and my condition is if I got value roro from db no will be checked if I got Vessel, Containerized yes will be checked.

$getDataForPDF = getDataForPDF($bookingsId, $bookingsLettersDockReceiptId);
if($getDataForPDF["typeOfMove"] == "Vessel, Containerized") {
     $checkedYes = "checked";
} if($getDataForPDF["typeOfMove"] == "roro") {
     $checkedNo = "checked";
}

and I'm using this condition in checkboxes

$html .= '<tr>';
     $html .= '<td colspan="3">';
          $html .= '<small>11. TYPE OF MOVE</small> <br />';
          $html .= $getDataForPDF["typeOfMove"];
     $html .= '</td>';

     $html .= '<td colspan="2">';
          $html .= '<small>11a. CONTAINERIZED &nbsp;&nbsp;&nbsp; (Vessel only)</small> <br/>';
          $html .= '<input type="checkbox" checked="'.$checkedYes.'" name="yes"> Yes &nbsp;&nbsp;&nbsp; <input type="checkbox" checked="'.$checkedNo.'" name="no"> No';
      $html .= '</td>';
$html .= '</tr>';

my condition is right but not working on checked="checked" condition. What is wrong in my code?

Answer 1

The checked property is as simple as adding checked at the end of the tag. For example <input type="checkbox" name="yes" checked> would be a checked box where the absence of checked would be unchecked.

The following code should solve the problem for you:

$checkedYes = '';
$checkedNo = '';
$getDataForPDF = getDataForPDF($bookingsId, $bookingsLettersDockReceiptId);
if($getDataForPDF["typeOfMove"] == "Vessel, Containerized") {
     $checkedYes = " checked";// note the space before checked
} if($getDataForPDF["typeOfMove"] == "roro") {
     $checkedNo = " checked";// note the space before checked
}


$html .= '<tr>';
     $html .= '<td colspan="3">';
          $html .= '<small>11. TYPE OF MOVE</small> <br />';
          $html .= $getDataForPDF["typeOfMove"];
     $html .= '</td>';

     $html .= '<td colspan="2">';
          $html .= '<small>11a. CONTAINERIZED &nbsp;&nbsp;&nbsp; (Vessel only)</small> <br/>';
          $html .= '<input type="checkbox" name="yes"'.$checkedYes.'> Yes &nbsp;&nbsp;&nbsp; <input type="checkbox"  name="no"'.$checkedNo.'> No';
      $html .= '</td>';
$html .= '</tr>';

JSFiddle: http://jsfiddle.net/o984L61e/

Edit

Try changing the top code block to:

$checkedYes = '';
$checkedNo = '';
$getDataForPDF = getDataForPDF($bookingsId, $bookingsLettersDockReceiptId);
if($getDataForPDF["typeOfMove"] == "Vessel, Containerized") {
     $checkedYes = " checked='checked'";// note the space before checked
} 
if($getDataForPDF["typeOfMove"] == "roro") {
     $checkedNo = " checked='checked'";// note the space before checked
}

The examples on tcpdf use the checked='checked' property just like the other answers had, but you must initialize the variables before you try to concatenate in the html string. As written in the question, either $checkedYes or $checkedNo will be undefined since they are being initialized in mutually exclusive if blocks. Not sure if this will make a difference but it seems plausible.