//call Run() method iteratively to find all matching instances.
while (true) {
$searchResult = $txt_search->Run();
if ($searchResult->IsFound()) {
if ($step == 0) {
//step 0: found "John Smith"
//note that, here, 'ambient_string' and 'hlts' are not written to,
//as 'e_ambient_string' and 'e_highlight' are not set.
echo nl2br($searchResult->GetMatch() . "'s credit card number is: \n");
//now switch to using regular expressions to find John's credit card number
$mode = $txt_search->GetMode();
$mode |= TextSearch::e_reg_expression | TextSearch::e_highlight;
$txt_search->SetMode($mode);
$pattern = "\\d{4}-\\d{4}-\\d{4}-\\d{4}";
//or "(\\d{4}-){3}\\d{4}"
$txt_search->SetPattern($pattern);
++$step;
} else {
if ($step == 1) {
//step 1: found John's credit card number
echo nl2br(" " . $searchResult->GetMatch() . "\n");
//note that, here, 'hlts' is written to, as 'e_highlight' has been set.
//output the highlight info of the credit card number.
$hlts = $searchResult->GetHighlights();
$hlts->Begin($doc);
while ($hlts->HasNext()) {
echo nl2br("The current highlight is from page: " . $hlts->GetCurrentPageNumber() . "\n");
$hlts->Next();
}
//see if there is an AMEX card number
$pattern = "\\d{4}-\\d{6}-\\d{5}";
