forms - PHP - Checkbox issues when trying to get their values -

so made simple example try , explain me problem can't understand.

the scenario this, have 5 checkboxes in 1 form , button in form. know have created button in same form checkboxes, sake of example, let's absolutely have in different forms. here code:

<?php     if(isset($_post['submit2'])){         if(isset($_post['selecao'])){             print_r($_post['selecao']);         }     } $names = array("joão", "ana", "alex", "carla", "carolina"); ?>  <form action="" method="post">     <?php         $limite = 5;         for($i=0 ; $i<$limite ; $i++){             ?><input type="checkbox"                 name="selecao[]"                 value="<?php echo $names[$i]?>"/>                 <?php         }     ?>    </form> <form action="" method="post">     <input type="submit" name="submit2" value="submit">  </form> 

with code this, "print_r($_post['selecao'])" won't executed, however, if have button created in same form checkboxes print_r show array correctly.

my question is, how can work using different forms, possible? in advance replies :)

you have double <form> tags, , submit or button or checkboxes. if want them submit together, should begin <form> before checkboxes, , end </form> after submit, like:

<?php     if(isset($_post['submit2'])){         if(isset($_post['selecao'])){             print_r($_post['selecao']);         }     } $names = array("joão", "ana", "alex", "carla", "carolina"); ?>  <form action="" method="post">     <?php         $limite = 5;         for($i=0 ; $i<$limite ; $i++){             ?><input type="checkbox"                 name="selecao[]"                 value="<?php echo $names[$i]?>"/>                 <?php         }     ?>        <input type="submit" name="submit2" value="submit">  </form>