Giandonato Inverso
119 lines
2.9 KiB
PHP
119 lines
2.9 KiB
PHP
<?php
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/**
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* Function to generate random string.
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* The function takes an integer n as input and generates a string by concatenating n characters chosen randomly from a domain.
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N.B. In our case the integer n is randomly chosen between a range of 5 and 8. I chose this "short" range to not overdo the length of the identifier
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*/
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function randomString($n) {
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$generated_string = "";
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$domain = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
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$len = strlen($domain);
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// Loop to create random string
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for ($i = 0; $i < $n; $i++) {
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// Generate a random index to pick characters
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$index = rand(0, $len - 1);
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// Concatenating the character
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// in resultant string
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$generated_string = $generated_string . $domain[$index];
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}
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return $generated_string;
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}
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/**
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*
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*/
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function getSecureRandomToken() {
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$token = bin2hex(openssl_random_pseudo_bytes(16));
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return $token;
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}
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/**
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* Clear Auth Cookie
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*/
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function clearAuthCookie() {
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unset($_COOKIE['series_id']);
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unset($_COOKIE['remember_token']);
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setcookie('series_id', null, -1, '/');
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setcookie('remember_token', null, -1, '/');
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}
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/**
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*
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*/
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function clean_input($data) {
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$data = trim($data);
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$data = stripslashes($data);
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$data = htmlspecialchars($data);
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return $data;
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}
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function paginationLinks($current_page, $total_pages, $base_url) {
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if ($total_pages <= 1) {
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return false;
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}
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$html = '';
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if (!empty($_GET)) {
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// We must unset $_GET[page] if previously built by http_build_query function
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unset($_GET['page']);
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// To keep the query sting parameters intact while navigating to next/prev page,
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$http_query = "?" . http_build_query($_GET);
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} else {
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$http_query = "?";
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}
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$html = '<ul class="pagination pagination-sm m-0 float-right">';
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if ($current_page == 1) {
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$html .= '<li class="page-item disabled"><a class="page-link">First</a></li>';
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} else {
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$html .= '<li class="page-item"><a class="page-link" href="' . $base_url . $http_query . '&page=1">First</a></li>';
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}
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// Show pagination links
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//var i = (Number(data.page) > 5 ? Number(data.page) - 4 : 1);
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if ($current_page > 5) {
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$i = $current_page - 4;
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} else {
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$i = 1;
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}
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for (; $i <= ($current_page + 4) && ($i <= $total_pages); $i++) {
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($current_page == $i) ? $li_class = ' class="active"' : $li_class = '';
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$link = $base_url . $http_query;
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$html = $html . '<li class="page-item"' . $li_class . '><a class="page-link" href="' . $link . '&page=' . $i . '">' . $i . '</a></li>';
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if ($i == $current_page + 4 && $i < $total_pages) {
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$html = $html . '<li class="page-item disabled"><a class="page-link">...</a></li>';
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}
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}
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if ($current_page == $total_pages) {
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$html .= '<li class="page-item disabled"><a class="page-link">Last</a></li>';
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} else {
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$html .= '<li class="page-item"><a class="page-link" href="' . $base_url . $http_query . '&page=' . $total_pages . '">Last</a></li>';
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}
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$html = $html . '</ul>';
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return $html;
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}
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