Using the v3 of the Wufoo API to retrieve all entries and store in a single array ($all_results). This is necessary because of the limit 100 entries limit that Wufoo has.

All_wufoo_results.php

<?php

// Setup
$account = "YOUR_ACCOUNT_NAME";
$form = "FORM_ID";
$api_key = "API_KEY";
$offset = 0;
$limit = 100;
$all_results = array();


// How many entries are there?
$api_uri = "https://$account.wufoo.com/api/v3/forms/$form/entries/count.json";
$count = wufoo_api($api_key, $account, $form, $offset, $limit, $api_uri);
$counted = $count['EntryCount'];


// Call the api and push results to $all_results array
for ($offset = 0; $offset <= $counted - 1; $offset = $offset + $limit) {
	$results = wufoo_api($api_key, $account, $form, $offset, $limit);

	$limit = (($offset + $limit) > $counted) ? $limit - (($offset + $limit) - $counted) : $limit;

	for ($result = 0; $result <= $limit - 1; $result++) {
		array_push($all_results, $results['Entries'][$result]);
	}
}


// Get the entries
function wufoo_api($api_key, $account, $form, $offset, $limit, $api_uri = NULL) {
	$api_url = ($api_uri) ? $api_uri : 'https://' . $account . '.wufoo.com/api/v3/forms/' . $form . '/entries.json?pageStart=' . $offset . '&pageSize=' . $limit;

	$curl = curl_init($api_url);
	curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($curl, CURLOPT_USERPWD, $api_key . ':footastic');
	curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
	curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); curl_setopt($curl, CURLOPT_USERAGENT, 'Wufoo Sample Code');
	$response = curl_exec($curl);
	$resultStatus = curl_getinfo($curl);

	if ($resultStatus['http_code'] == 200) {
		$results = json_decode($response, true);
		return $results;
	} else {
		$results = 'Call Failed '.print_r($resultStatus, true);
		return $results;
	}
}

?>