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. Also store the results to file we don't get slow responses from the api.

wufoo_entries_array.php

<?php

function wufoo_entries() {
	// Setup
	$account = "ACCOUNT_NAME";
	$form = "FORM_NAME";
	$api_key = "YOUR-API-KEY";
	$offset = 0;
	$limit = 100;
	$check_int = 15 * 60; // 15 minutes
	$file_time = 'time_stamp.txt';
	$file_results = 'results.txt';


	// Check for the last update
	$time = time();
	$time_stamp = file_get_contents($file_time);
	$refresh = ($check_int < ($time - $time_stamp)) ? TRUE : FALSE;

	// if true run functions and save the results and time to file else pull the results from file
	if ($refresh) {
		// Initialize our results array
		$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 as many times as needed
		for ($offset = 0; $offset <= $counted - 1; $offset = $offset + $limit) {
			$results = wufoo_api($api_key, $account, $form, $offset, $limit);
			// Limit the number of times we put results into the $all_results array to make sure we don't end up with blanks
			$limit = (($offset + $limit) > $counted) ? $limit - (($offset + $limit) - $counted) : $limit;

			// Iterate through the Entries array to push each entry into a new array
			for ($result = 0; $result <= $limit - 1; $result++) {
				array_push($all_results, $results['Entries'][$result]);
			}
		}

		// Save the new results (as json) and time to file
		$all_results_file = json_encode($all_results);
		file_put_contents($file_results, $all_results_file);
		file_put_contents($file_time, $time);
		return $all_results;
	}

	else {
		// Pull the results array from file
		$all_results = file_get_contents($file_results);
		$all_results = json_decode($all_results, true);
		return $all_results;
	}
}

function wufoo_api($api_key, $account, $form, $offset, $limit, $api_uri = NULL) {
	// Check to see if it's asking for the the entries or the total count
	$api_url = ($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;
	}
}

// Show me some results and make sure it works
echo "<pre>";
print_r(wufoo_entries());
echo "</pre>";

?>