function dropColumn($tableName, $columnName)
{
// YOUR Sqlite file here
$base = new SQLite3(“myadmin.sqlite”);
$query = sprintf(“select sql from sqlite_master where tbl_name = ‘%s’”, $tableName);
$res = $base->querySingle($query,true);
$sql = $res['sql'];
$s1 = explode(‘(‘,$sql);
$s2 = explode(‘,’,rtrim($s1[1],’)'));
$count = 0;
$colpos = 0;
//
$cols = array();
$colsexpr = array();
//Recording Field
foreach($s2 as $expr)
{
if (strpos($expr,$columnName))
$colpos = $count;
$count++;
$tmp = explode(‘ ‘,trim($expr));
if ($tmp[0] != $columnName)
{
array_push($colsexpr,$expr);
array_push($cols,$tmp[0]);
}
}
// Preparing Structure
$sqlCreate = sprintf(“CREATE TABLE %s (“,$tableName);
foreach ($colsexpr as $colexpr)
$sqlCreate .= $colexpr . “,”;
$sqlCreate = rtrim($sqlCreate,’,');
$sqlCreate .= “)”;
// Preparing Data
$query2 = sprintf(“select * from %s”,$tableName);
$datas = $base->query($query2);
$inserts = array();
while($data = $datas->fetchArray())
{
$insert = sprintf(“insert into %s (“,$tableName);
foreach ($cols as$col)
$insert .= “‘”.$col.”‘,”;
$insert = rtrim($insert,’,');
$insert .= “) values (“;
foreach($cols as $col)
$insert .= “‘”.$data[$col].”‘,”;
$insert = rtrim($insert,’,');
$insert .= “)”;
array_push($inserts,$insert);
}

$sqlDrop = sprintf(“drop table %s”,$tableName);
$base->exec($sqlDrop);
$base->exec($sqlCreate);
foreach($inserts as $insert)
$base->exec($insert);
$base->close();
}