php - simple yes or no checkbox for forms -

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i have inserted checkbox in form.

my code:

<input type="checkbox" id="checkbox" name="checkbox" value="1"/>  if($checkbox = ($_post['checkbox']) == '1')         {             $checkbox = "si";         }         else         {             $checkbox = "no";         }

i if checkbox checked receive "yes" otherwise "no". thanks.

you've written wrong if condition here, cannot use assignment in conditions.

also there no need assign value variable in checking condition, can directly use $_post['checkbox']. this,

if($_post['checkbox'] == '1') {    $checkbox = "si"; } else {    $checkbox = "no"; }

update:

a better option use isset() determine if variable set , not null. this,

if(isset($_post['checkbox'])) {    $checkbox = "si"; } else {    $checkbox = "no"; }

program go in if condition when user has checked checkbox. in above case value attribute <input> not required. html this,

<input type="checkbox" id="checkbox" name="checkbox"/>

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