checkbox state checked php -

how check checkbox when toggled other checkbox?

my code looks this:

<form method="post"><input type="checkbox" name="checkall" value = "post" /> </form>  <?php     foreach($records $r){         if(isset($_post["checkall"]) == 'post'){             $chc = "checked = 'checked'";         }         else{             $chc = "";         }     } ?>  <form method="post">     <input type="checkbox" name="<?php echo escape($r->id); ?>" class="check" value="post" <?php echo $chc ;?> /> </form> 

the code doesn't work can me please.

thanks lot!

job

...    foreach($records $r){                       if($_post["checkall"] == 'post')                       {                           ... 

isset() function tell $_post['checkall'] there or not , checks has value in or not.

if want comapare $_post['checkall'] value, have compare example above. if want both, use 2 if conditions below

...    foreach($records $r)    {                   if(isset($_post['checkall'])               {                   if($_post["checkall"] == 'post')                       {                           ...                           ...                       }               } 

that you. first of all, before putting codes, plan structure of page, have , visitors have do. without plan, end reaching , stuck. code have presented not recommended.

if put more codes in questions, extent.