PHP Syntax error: Unexpected for after string "</div>" - php

Question

I been trying to figure out if I can add a for loop in this situation:
$g = '<td id="'.$this->currentDate.'" class=" td-top-text '.($cellNumber%7==1?' start ':($cellNumber%7==0?' end ':' ')).
($cellContent==null?'mask':'').'">'
//if statement
.($this->currentDate === $tutor_date ?
'<div class="inside">'//open inside
.'<div class="inside-content">' //open inside-content
. '<div class="inside-date">'.$cellContent.'</div>'//open and close inside-date
for($i =0; $i < count($appt_date['date']); $i++) {
'<div class="inside-event '.$bkg_color.' ck-button btn-xs" title="Group Session">'//open inside-event
. '<label class="label-for-text">'//open label
. '<input type="radio" data-toggle="modal" data-target="#myModal" name="appt_selected" value="'.$tutor_shedule_id.'" >'//open input
. '<span>'.$tutor_info.'</span>' //open and close span
.'</input>'// close input
. '</label>'// close label
. '</div>';//close inside-event
}
'</div>'//close inside-content
. '</div>'//close inside
. '</td>' //close td
//else
: '<div class="inside">'.$cellContent.'</div>'
. '</td>' );
return $g;
I tried so many things such as added a ; at the end of </div> and before the for loop, I also added a . before the for loop and after.
EDIT:
Instead of down-vote this question, please provide some feedback and let me know what is wrong. For me this code is "fine" until you tell me a better way to do it. So, please I really appreciated your feedback.
Thanks.

Answer 1

I recommend you to do the if-else statement rather than this approach as this process is very difficult to debug. So, go with the following code:
$g = '<td id="'.$this->currentDate.'" class=" td-top-text '.($cellNumber%7==1?' start ':($cellNumber%7==0?' end ':' ')).
($cellContent==null?'mask':'').'">';
if ($this->currentDate === $tutor_date){
$g.='<div class="inside">'//open inside
.'<div class="inside-content">' //open inside-content
. '<div class="inside-date">'.$cellContent.'</div>';//open and close inside-date
for($i =0; $i < count($appt_date['date']); $i++) {
$g.='<div class="inside-event '.$bkg_color.' ck-button btn-xs" title="Group Session">'//open inside-event
. '<label class="label-for-text">'//open label
. '<input type="radio" data-toggle="modal" data-target="#myModal" name="appt_selected" value="'.$tutor_shedule_id.'" >'//open input
. '<span>'.$tutor_info.'</span>' //open and close span
.'</input>'// close input
. '</label>'// close label
. '</div>';//close inside-event
}
$g.= '</div>'//close inside-content
. '</div>'//close inside
. '</td>' ;//close td
}else{
$g.='<div class="inside">'.$cellContent.'</div>'
. '</td>'; }
return $g;

Answer 2

Well that was painful, I've tried to fix it up a little and at least make it more readable. Have a try of this... also I should point out I'm pretty sure this code is vulnerable to XSS attacks.
// Work out the Class names.
$classNameOne = ($cellNumber % 7) == 1 ? ' start '
: ($cellNumber % 7) == 0 ? ' end'
: ' ';
$classNameTwo = ($cellContent == null) ? 'mask'
: '';
// Build up the html.
$html = '<td id="' . $this->currentDate . '" class="td-top-text ' . $classNameOne . $classNameTwo . '">';
if ($this->currentDate === $tutor_date) {
$html .= '<div class="inside">';
$html .= '<div class="inside-content">';
$html .= '<div class="inside-date">' . $cellContent . '</div>';
$dateInstances = count($appt_date['date']);
for ($i = 0; $i < $dateInstances; $i++) {
$html .= '<div class="inside-event ' . $bkg_color . ' ck-button btn-xs" title="Group Session">';
$html .= '<label class="label-for-text">';
$html .= '<input type="radio" data-toggle="modal" data-target="#myModal~ name="appt_selected" value="'. $tutor_shedule_id .'">';
$html .= '<span>' . $tutor_info . '</span>';
$html .= '</input>';
$html .= '</label>';
$html .= '</div>';
}
$html .= '</div>';
$html .= '</div>';
$html .= '</td>';
} else {
$html .= '<div class="inside">' . $cellContent . '</div>';
$html .= '</td>';
}
return $html;