php code not displaying well

Hi

my code is :

use Carbon\Carbon;
$year = date(“Y”,strtotime(get_userdata(get_current_user_id( ))->user_registered));
$month = date(“m”,strtotime(get_userdata(get_current_user_id( ))->user_registered));
$day = date(“d”,strtotime(get_userdata(get_current_user_id( ))->user_registered));
$date1 = strtotime(get_userdata(get_current_user_id( ))->user_registered);

$user_id = get_current_user_id();
$user_info = get_userdata( $user_id );
$user_roles = implode(‘, ‘, $user_info->roles);

$subs_date_W = Carbon::createFromTimestamp($date1)->startOfDay()->format(‘W’);
$subs_date_YW = Carbon::createFromTimestamp($date1)->startOfDay()->format(‘YW’);
$actual_date_W = Carbon::now()->format(‘W’);
$actual_date_YW = Carbon::now()->format(‘YW’);

$W_of_subs = $actual_date_YW – $subs_date_YW;
if ($user_roles == “administrator”) {
$subs_val = 53;
$W_of_subs = 53;
} elseif ($user_roles == “s2member_level2”) {
$subs_val = 4;
} elseif ($user_roles == “s2member_level3”) {
$subs_val = 12;
} elseif ($user_roles == “s2member_level4″) {
$subs_val = 36;
}

$post_grid_equiv = $subs_date_W + 888;

for ($i = 0; $i <= $W_of_subs && $i <= $subs_val ; $i++) {
$post_grid_equiv1 = $post_grid_equiv + $i.”\n” ;
echo do_shortcode(“[post_grid id=’$post_grid_equiv1′]”);
}

the result is that :

View post on imgur.com

with the shortcode in a page it gives me that (with flip layout) :

View post on imgur.com