if checkbox checked....

[speedyrudolf]

Hi. I'm making a website that includes a form, and I kind of hit a bump with the php.

PHP:
{for($i=0; $i<22; $i++)
    {if($_POST["Navs".$i]=='ON')
     {$message.=$i.", ";}}

HTML:
<tr><td width="425"><input type="checkbox" id="Navs0" onClick="Cont_pag5_3()"><img name="But_nav" src="buttons/a_la_carte_p1.jpg" onMouseOver="Nav_but(0, 0)" onMouseOut="Nav_but(1, 0)" onMouseDown="Nav_but(2, 0)" onMouseUp="Nav_but(0, 0)"></td>
<td width="425"><input type="checkbox" id="Navs1" onClick="Cont_pag5_3()"><img name="But_nav" src="buttons/artemis_p1.jpg" onMouseOver="Nav_but(0, 1)" onMouseOut="Nav_but(1, 1)" onMouseDown="Nav_but(2, 1)" onMouseUp="Nav_but(0, 1)"></td></tr>
<tr><td width="425"><input type="checkbox" id="Navs2" onClick="Cont_pag5_3()"><img name="But_nav" src="buttons/aura_p1.jpg" onMouseOver="Nav_but(0, 2)" onMouseOut="Nav_but(1, 2)" onMouseDown="Nav_but(2, 2)" onMouseUp="Nav_but(0, 2)"></td>
<td width="425"><input type="checkbox" id="Navs3" onClick="Cont_pag5_3()"><img name="But_nav" src="buttons/avail_p1.jpg" onMouseOver="Nav_but(0, 3)" onMouseOut="Nav_but(1, 3)" onMouseDown="Nav_but(2, 3)" onMouseUp="Nav_but(0, 3)"></td></tr>
ETC to Navs21

The problem is that the php doesn't "see" if the checkboxes ar checked or not, so that part of $message remains empty...What am I doing wrong? Thank you in advance. Bye.

 

[jpadie]

for($i=0; $i<22; $i++){
   if(empty($_POST["Navs".$i])){
       //checkbox is OFF
   } else {
       //checkbox is ON
   }
}

unchecked checkboxes are not submitted by browsers. so you need to test for their absence.

 

[speedyrudolf]

Yeah...still doesn't work...

 

[jpadie]

well, you might want to give the <input> elements a name value. that's considered 'necessary' in the web-design world.

 

[speedyrudolf]

so...it doesn't work with id...??
ok...be back with another post in about 5 minutes...

 

[speedyrudolf]

yep...it works now...thanks