<code>
<?php
print "<h2>request</h2>\n";
print_r($_REQUEST);
print "<br>\n";
printf("First Name: %s<br> Last Name: %s<br>\n", 
  $_REQUEST['first_name'], $_REQUEST['last_name']);

$db = oci_connect('hr', 'hr', 'orcl');
$sql = "select * from employees where 
    last_name = '". $_REQUEST['last_name']. 
	"' and first_name = '". $_REQUEST['first_name'] ."'";

$sql2 = sprintf(
   "select * from employees where 
     last_name  = '%s' and
	 first_name = '%s'", 
	 $_REQUEST['last_name'], 
	 $_REQUEST['first_name']);
	 
$sql3 = 
   'select * from employees where 
     last_name  = :last_name and
	 first_name = :first_name';
	 	
print $sql3 . "<br>";	
$q = oci_parse($db, $sql3);
oci_bind_by_name($q, ":last_name", $_REQUEST['last_name'],-1, 
                 SQLT_CHR );

oci_bind_by_name($q, ":first_name", $_REQUEST['first_name'],-1,
                 SQLT_CHR );
			  
$r = oci_execute($q, OCI_DEFAULT);

$table[] = oci_fetch_array($q, OCI_ASSOC+OCI_RETURN_NULLS);

print_table($table);

function print_table($table) {
print "<table border=1>\n";
foreach ($table as $row) {
  print "<tr>"; 
  foreach ($row as $cell) {
    if (!isset($cell)) {$cell = 'n/a'; }  	
    print "<td> $cell </td> ";
  }
  print "</tr>\n";
  }
print "</table>\n";
}  
?>
</code>