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Tools.php
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Tools.php
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<?php
class Tools {
const FLAG_NUMERIC = 1;
const FLAG_NO_NUMERIC = 2;
const FLAG_ALPHANUMERIC = 3;
/**
* 生成随机密码
*
* @param integer $length Desired length (optional)
* @param string $flag Output type (NUMERIC, ALPHANUMERIC, NO_NUMERIC)
*
* @return string Password
*/
public static function passwdGen($length = 8, $flag = self::FLAG_NO_NUMERIC) {
switch ($flag)
{
case self::FLAG_NUMERIC:
$str = '0123456789';
break;
case self::FLAG_NO_NUMERIC:
$str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
break;
case self::FLAG_ALPHANUMERIC:
default:
$str = 'abcdefghijkmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';
break;
}
for ($i = 0, $passwd = ''; $i < $length; $i++)
$passwd .= Tools::substr($str, mt_rand(0, Tools::strlen($str) - 1), 1);
return $passwd;
}
/**
* 替换第一次出现的字符串
*
* @param $search
* @param $replace
* @param $subject
* @param int $cur
*
* @return mixed
*/
public static function strReplaceFirst($search, $replace, $subject, $cur = 0) {
return (strpos($subject, $search, $cur)) ? substr_replace($subject, $replace, (int)strpos($subject, $search, $cur), strlen($search)) : $subject;
}
/**
* 跳转
*
* @param $url
* @param null $headers
*/
public static function redirect($url, $headers = null) {
if (!empty($url))
{
if ($headers)
{
if (!is_array($headers))
$headers = array($headers);
foreach ($headers as $header)
header($header);
}
header('Location: ' . $url);
exit;
}
}
/**
* 清理URL中的http头
*
* @param $url
* @param bool $cleanall
*
* @return mixed|string
*/
public static function cleanUrl($url, $cleanall = true) {
if (strpos($url, 'http://') !== false)
{
if ($cleanall)
{
return '/';
}
else
{
return str_replace('http://', '', $url);
}
}
return $url;
}
/**
* 获取当前域名
*
* @param bool $http
* @param bool $entities
*
* @return string
*/
public static function getHttpHost($http = false, $entities = false) {
$host = (isset($_SERVER['HTTP_X_FORWARDED_HOST']) ? $_SERVER['HTTP_X_FORWARDED_HOST'] : $_SERVER['HTTP_HOST']);
if ($entities)
$host = htmlspecialchars($host, ENT_COMPAT, 'UTF-8');
if ($http)
{
$host = self::getCurrentUrlProtocolPrefix() . $host;
}
return $host;
}
/**
* 获取当前服务器名
*
* @return mixed
*/
public static function getServerName() {
if (isset($_SERVER['HTTP_X_FORWARDED_SERVER']) && $_SERVER['HTTP_X_FORWARDED_SERVER'])
return $_SERVER['HTTP_X_FORWARDED_SERVER'];
return $_SERVER['SERVER_NAME'];
}
/**
* 获取用户IP地址
*
* @return mixed
*/
public static function getRemoteAddr() {
if (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && $_SERVER['HTTP_X_FORWARDED_FOR'] && (!isset($_SERVER['REMOTE_ADDR']) || preg_match('/^127\..*/i', trim($_SERVER['REMOTE_ADDR'])) || preg_match('/^172\.16.*/i', trim($_SERVER['REMOTE_ADDR'])) || preg_match('/^192\.168\.*/i', trim($_SERVER['REMOTE_ADDR'])) || preg_match('/^10\..*/i', trim($_SERVER['REMOTE_ADDR']))))
{
if (strpos($_SERVER['HTTP_X_FORWARDED_FOR'], ','))
{
$ips = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
return $ips[0];
}
else
return $_SERVER['HTTP_X_FORWARDED_FOR'];
}
return $_SERVER['REMOTE_ADDR'];
}
/**
* 获取用户来源地址
*
* @return null
*/
public static function getReferer() {
if (isset($_SERVER['HTTP_REFERER']))
{
return $_SERVER['HTTP_REFERER'];
}
else
{
return null;
}
}
/**
* 判断是否使用了HTTPS
*
* @return bool
*/
public static function usingSecureMode() {
if (isset($_SERVER['HTTPS']))
return ($_SERVER['HTTPS'] == 1 || strtolower($_SERVER['HTTPS']) == 'on');
if (isset($_SERVER['SSL']))
return ($_SERVER['SSL'] == 1 || strtolower($_SERVER['SSL']) == 'on');
return false;
}
/**
* 获取当前URL协议
*
* @return string
*/
public static function getCurrentUrlProtocolPrefix() {
if (Tools::usingSecureMode())
return 'https://';
else
return 'http://';
}
/**
* 判断是否本站链接
*
* @param $referrer
*
* @return string
*/
public static function secureReferrer($referrer) {
if (preg_match('/^http[s]?:\/\/' . Tools::getServerName() . '(:443)?\/.*$/Ui', $referrer))
return $referrer;
return '/';
}
/**
* 获取POST或GET的指定字段内容
*
* @param $key
* @param bool $default_value
*
* @return bool|string
*/
public static function getValue($key, $default_value = false) {
if (!isset($key) || empty($key) || !is_string($key))
return false;
$ret = (isset($_POST[$key]) ? $_POST[$key] : (isset($_GET[$key]) ? $_GET[$key] : $default_value));
if (is_string($ret) === true)
$ret = trim(urldecode(preg_replace('/((\%5C0+)|(\%00+))/i', '', urlencode($ret))));
return !is_string($ret) ? $ret : stripslashes($ret);
}
/**
* 判断POST或GET中是否包含指定字段
*
* @param $key
*
* @return bool
*/
public static function getIsset($key) {
if (!isset($key) || empty($key) || !is_string($key))
return false;
return isset($_POST[$key]) ? true : (isset($_GET[$key]) ? true : false);
}
/**
* 判断是否为提交操作
*
* @param $submit
*
* @return bool
*/
public static function isSubmit($submit) {
return (isset($_POST[$submit]) || isset($_POST[$submit . '_x']) || isset($_POST[$submit . '_y']) || isset($_GET[$submit]) || isset($_GET[$submit . '_x']) || isset($_GET[$submit . '_y']));
}
/**
* 过滤HTML内容后返回
*
* @param $string
* @param bool $html
*
* @return array|string
*/
public static function safeOutput($string, $html = false) {
if (!$html)
$string = strip_tags($string);
return @Tools::htmlentitiesUTF8($string, ENT_QUOTES);
}
public static function htmlentitiesUTF8($string, $type = ENT_QUOTES) {
if (is_array($string))
return array_map(array('Tools', 'htmlentitiesUTF8'), $string);
return htmlentities((string)$string, $type, 'utf-8');
}
public static function htmlentitiesDecodeUTF8($string) {
if (is_array($string))
return array_map(array('Tools', 'htmlentitiesDecodeUTF8'), $string);
return html_entity_decode((string)$string, ENT_QUOTES, 'utf-8');
}
/**
* 对POST内容进行处理
*
* @return array
*/
public static function safePostVars() {
if (!is_array($_POST))
return array();
$_POST = array_map(array('Tools', 'htmlentitiesUTF8'), $_POST);
}
/**
* 删除文件夹
*
* @param $dirname
* @param bool $delete_self
*/
public static function deleteDirectory($dirname, $delete_self = true) {
$dirname = rtrim($dirname, '/') . '/';
if (is_dir($dirname))
{
$files = scandir($dirname);
foreach ($files as $file)
if ($file != '.' && $file != '..' && $file != '.svn')
{
if (is_dir($dirname . $file))
Tools::deleteDirectory($dirname . $file, true);
elseif (file_exists($dirname . $file))
unlink($dirname . $file);
}
if ($delete_self)
rmdir($dirname);
}
}
/**
* 显示错误信息
*
* @param string $string
* @param array $error
* @param bool $htmlentities
*
* @return mixed|string
*/
public static function displayError($string = 'Fatal error', $error = array(), $htmlentities = true) {
if (DEBUG_MODE)
{
if (!is_array($error) || empty($error))
return str_replace('"', '"', $string) . ('<pre>' . print_r(debug_backtrace(), true) . '</pre>');
$key = md5(str_replace('\'', '\\\'', $string));
$str = (isset($error) AND is_array($error) AND key_exists($key, $error)) ? ($htmlentities ? htmlentities($error[$key], ENT_COMPAT, 'UTF-8') : $error[$key]) : $string;
return str_replace('"', '"', stripslashes($str));
}
else
{
return str_replace('"', '"', $string);
}
}
/**
* 打印出对象的内容
*
* @param $object
* @param bool $kill
*
* @return mixed
*/
public static function dieObject($object, $kill = true) {
echo '<pre style="text-align: left;">';
print_r($object);
echo '</pre><br />';
if ($kill)
die('END');
return ($object);
}
public static function encrypt($passwd) {
return md5(_COOKIE_KEY_ . $passwd);
}
public static function getToken($string) {
return !empty($string) ? Tools::encrypt($string) : false;
}
/**
* 截取字符串，支持中文
*
* @param $str
* @param $max_length
* @param string $suffix
*
* @return string
*/
public static function truncate($str, $max_length, $suffix = '...') {
if (Tools::strlen($str) <= $max_length)
return $str;
$str = utf8_decode($str);
return (utf8_encode(substr($str, 0, $max_length - Tools::strlen($suffix)) . $suffix));
}
public static function replaceAccentedChars($str) {
$patterns = array( /* Lowercase */
'/[\x{0105}\x{00E0}\x{00E1}\x{00E2}\x{00E3}\x{00E4}\x{00E5}]/u',
'/[\x{00E7}\x{010D}\x{0107}]/u',
'/[\x{010F}]/u',
'/[\x{00E8}\x{00E9}\x{00EA}\x{00EB}\x{011B}\x{0119}]/u',
'/[\x{00EC}\x{00ED}\x{00EE}\x{00EF}]/u',
'/[\x{0142}\x{013E}\x{013A}]/u',
'/[\x{00F1}\x{0148}]/u',
'/[\x{00F2}\x{00F3}\x{00F4}\x{00F5}\x{00F6}\x{00F8}]/u',
'/[\x{0159}\x{0155}]/u',
'/[\x{015B}\x{0161}]/u',
'/[\x{00DF}]/u',
'/[\x{0165}]/u',
'/[\x{00F9}\x{00FA}\x{00FB}\x{00FC}\x{016F}]/u',
'/[\x{00FD}\x{00FF}]/u',
'/[\x{017C}\x{017A}\x{017E}]/u',
'/[\x{00E6}]/u',
'/[\x{0153}]/u',
/* Uppercase */
'/[\x{0104}\x{00C0}\x{00C1}\x{00C2}\x{00C3}\x{00C4}\x{00C5}]/u',
'/[\x{00C7}\x{010C}\x{0106}]/u',
'/[\x{010E}]/u',
'/[\x{00C8}\x{00C9}\x{00CA}\x{00CB}\x{011A}\x{0118}]/u',
'/[\x{0141}\x{013D}\x{0139}]/u',
'/[\x{00D1}\x{0147}]/u',
'/[\x{00D3}]/u',
'/[\x{0158}\x{0154}]/u',
'/[\x{015A}\x{0160}]/u',
'/[\x{0164}]/u',
'/[\x{00D9}\x{00DA}\x{00DB}\x{00DC}\x{016E}]/u',
'/[\x{017B}\x{0179}\x{017D}]/u',
'/[\x{00C6}]/u',
'/[\x{0152}]/u'
);
$replacements = array(
'a',
'c',
'd',
'e',
'i',
'l',
'n',
'o',
'r',
's',
'ss',
't',
'u',
'y',
'z',
'ae',
'oe',
'A',
'C',
'D',
'E',
'L',
'N',
'O',
'R',
'S',
'T',
'U',
'Z',
'AE',
'OE'
);
return preg_replace($patterns, $replacements, $str);
}
public static function cleanNonUnicodeSupport($pattern) {
if (!defined('PREG_BAD_UTF8_OFFSET'))
return $pattern;
return preg_replace('/\\\[px]\{[a-z]\}{1,2}|(\/[a-z]*)u([a-z]*)$/i', "$1$2", $pattern);
}
/**
* 生成年份
*
* @return array
*/
public static function dateYears() {
$tab = array();
for ($i = date('Y') - 10; $i >= 1900; $i--)
$tab[] = $i;
return $tab;
}
/**
* 生成日
*
* @return array
*/
public static function dateDays() {
$tab = array();
for ($i = 1; $i != 32; $i++)
$tab[] = $i;
return $tab;
}
/**
* 生成月
*
* @return array
*/
public static function dateMonths() {
$tab = array();
for ($i = 1; $i != 13; $i++)
$tab[$i] = date('F', mktime(0, 0, 0, $i, date('m'), date('Y')));
return $tab;
}
/**
* 根据时分秒生成时间字符串
*
* @param $hours
* @param $minutes
* @param $seconds
*
* @return string
*/
public static function hourGenerate($hours, $minutes, $seconds) {
return implode(':', array($hours, $minutes, $seconds));
}
/**
* 一日之初
*
* @param $date
*
* @return string
*/
public static function dateFrom($date) {
$tab = explode(' ', $date);
if (!isset($tab[1]))
$date .= ' ' . self::hourGenerate(0, 0, 0);
return $date;
}
/**
* 一日之终
*
* @param $date
*
* @return string
*/
public static function dateTo($date) {
$tab = explode(' ', $date);
if (!isset($tab[1]))
$date .= ' ' . self::hourGenerate(23, 59, 59);
return $date;
}
/**
* 获取精准的时间
*
* @return int
*/
public static function getExactTime() {
return microtime(true);
}
/**
* 转换成小写字符，支持中文
*
* @param $str
*
* @return bool|string
*/
public static function strtolower($str) {
if (is_array($str))
return false;
if (function_exists('mb_strtolower'))
return mb_strtolower($str, 'utf-8');
return strtolower($str);
}
/**
* 转换为int类型
*
* @param $val
*
* @return int
*/
public static function intval($val) {
if (is_int($val))
return $val;
if (is_string($val))
return (int)$val;
return (int)(string)$val;
}
/**
* 计算字符串长度
*
* @param $str
* @param string $encoding
*
* @return bool|int
*/
public static function strlen($str, $encoding = 'UTF-8') {
if (is_array($str) || is_object($str))
return false;
$str = html_entity_decode($str, ENT_COMPAT, 'UTF-8');
if (function_exists('mb_strlen'))
return mb_strlen($str, $encoding);
return strlen($str);
}
public static function stripslashes($string) {
if (get_magic_quotes_gpc())
$string = stripslashes($string);
return $string;
}
/**
* 转换成大写字符串
*
* @param $str
*
* @return bool|string
*/
public static function strtoupper($str) {
if (is_array($str))
return false;
if (function_exists('mb_strtoupper'))
return mb_strtoupper($str, 'utf-8');
return strtoupper($str);
}
/**
* 截取字符串
*
* @param $str
* @param $start
* @param bool $length
* @param string $encoding
*
* @return bool|string
*/
public static function substr($str, $start, $length = false, $encoding = 'utf-8') {
if (is_array($str) || is_object($str))
return false;
if (function_exists('mb_substr'))
return mb_substr($str, intval($start), ($length === false ? self::strlen($str) : intval($length)), $encoding);
return substr($str, $start, ($length === false ? Tools::strlen($str) : intval($length)));
}
/**首字母大写
*
* @param $str
*
* @return string
*/
public static function ucfirst($str) {
return self::strtoupper(self::substr($str, 0, 1)) . self::substr($str, 1);
}
public static function nl2br($str) {
return preg_replace("/((<br ?\/?>)+)/i", "<br />", str_replace(array("\r\n", "\r", "\n"), "<br />", $str));
}
public static function br2nl($str) {
return str_replace("<br />", "\n", $str);
}
/**
* 判断是否真为空
*
* @param $field
*
* @return bool
*/
public static function isEmpty($field) {
return ($field === '' || $field === null);
}
public static function ceilf($value, $precision = 0) {
$precisionFactor = $precision == 0 ? 1 : pow(10, $precision);
$tmp = $value * $precisionFactor;
$tmp2 = (string)$tmp;
// If the current value has already the desired precision
if (strpos($tmp2, '.') === false)
return ($value);
if ($tmp2[strlen($tmp2) - 1] == 0)
return $value;
return ceil($tmp) / $precisionFactor;
}
public static function floorf($value, $precision = 0) {
$precisionFactor = $precision == 0 ? 1 : pow(10, $precision);
$tmp = $value * $precisionFactor;
$tmp2 = (string)$tmp;
// If the current value has already the desired precision
if (strpos($tmp2, '.') === false)
return ($value);
if ($tmp2[strlen($tmp2) - 1] == 0)
return $value;
return floor($tmp) / $precisionFactor;
}
public static function replaceSpace($url) {
return urlencode(strtolower(preg_replace('/[ ]+/', '-', trim($url, ' -/,.?'))));
}
/**
* 获取日期
*
* @param null $timestamp
*
* @return bool|string
*/
public static function getSimpleDate($timestamp = null) {
if ($timestamp == null)
{
return date('Y-m-d');
}
else
{
return date('Y-m-d', $timestamp);
}
}
/**
* 获取完整时间
*
* @param null $timestamp
*
* @return bool|string
*/
public static function getFullDate($timestamp = null) {
if ($timestamp == null)
{
return date('Y-m-d H:i:s');
}
else
{
return date('Y-m-d H:i:s', $timestamp);
}
}
/**
* 判断是否64位架构
*
* @return bool
*/
public static function isX86_64arch() {
return (PHP_INT_MAX == '9223372036854775807');
}
/**
* 获取服务器配置允许最大上传文件大小
*
* @param int $max_size
*
* @return mixed
*/
public static function getMaxUploadSize($max_size = 0) {
$post_max_size = Tools::convertBytes(ini_get('post_max_size'));
$upload_max_filesize = Tools::convertBytes(ini_get('upload_max_filesize'));
if ($max_size > 0)
$result = min($post_max_size, $upload_max_filesize, $max_size);
else
$result = min($post_max_size, $upload_max_filesize);
return $result;
}
public static function convertBytes($value) {
if (is_numeric($value))
return $value;
else
{
$value_length = strlen($value);
$qty = (int)substr($value, 0, $value_length - 1);
$unit = strtolower(substr($value, $value_length - 1));
switch ($unit)
{
case 'k':
$qty *= 1024;
break;
case 'm':
$qty *= 1048576;
break;
case 'g':
$qty *= 1073741824;
break;
}
return $qty;
}
}
/**
* 获取内存限制
*
* @return int
*/
public static function getMemoryLimit() {
$memory_limit = @ini_get('memory_limit');
return Tools::getOctets($memory_limit);
}
public static function getOctets($option) {
if (preg_match('/[0-9]+k/i', $option))
return 1024 * (int)$option;
if (preg_match('/[0-9]+m/i', $option))
return 1024 * 1024 * (int)$option;
if (preg_match('/[0-9]+g/i', $option))
return 1024 * 1024 * 1024 * (int)$option;
return $option;
}
/**
* 从array中取出指定字段
*
* @param $array
* @param $key
*
* @return array|null
*/
public static function simpleArray($array, $key) {
if (!empty($array) && is_array($array))
{
$result = array();
foreach ($array as $k => $item)
{
$result[$k] = $item[$key];
}
return $result;
}
return null;
}
public static function object2array(&$object) {
return json_decode(json_encode($object), true);
}
public static function getmicrotime() {
list($usec, $sec) = explode(" ", microtime());
return floor($sec + $usec * 1000000);
}
/**
* 根据时间生成图片名
*
* @param string $image_type
*
* @return float|string
*/
public static function getTimeImageName($image_type = "image/jpeg") {
if ($image_type == "image/jpeg" || $image_type == "image/pjpeg")
{
return self::getmicrotime() . ".jpg";
}
elseif ($image_type == "image/gif")
{
return self::getmicrotime() . ".gif";
}
elseif ($image_type == "image/png")
{
return self::getmicrotime() . ".png";
}
else
{
return self::getmicrotime();
}
}
/**
* 日期计算
*
* @param $interval
* @param $step
* @param $date
*
* @return bool|string
*/
public static function dateadd($interval, $step, $date) {
list($year, $month, $day) = explode('-', $date);
if (strtolower($interval) == 'y')
{
return date('Y-m-d', mktime(0, 0, 0, $month, $day, intval($year) + intval($step)));
}
elseif (strtolower($interval) == 'm')
{
return date('Y-m-d', mktime(0, 0, 0, intval($month) + intval($step), $day, $year));
}
elseif (strtolower($interval) == 'd')
{
return date('Y-m-d', mktime(0, 0, 0, $month, intval($day) + intval($step), $year));
}
return date('Y-m-d');
}
public static function echo_microtime($tag) {
list($usec, $sec) = explode(' ', microtime());
echo $tag . ':' . ((float)$usec + (float)$sec) . "\n";
}
public static function redirectTo($link) {
if (strpos($link, 'http') !== false)
{
header('Location: ' . $link);
}
else
{
header('Location: ' . Tools::getHttpHost(true) . '/' . $link);
}
exit;
}
public static function returnAjaxJson($array) {
if (!headers_sent())
{
header("Content-Type: application/json; charset=utf-8");
}
echo(json_encode($array));
ob_end_flush();
exit;
}
public static function cmpWord($a, $b) {
if ($a['word'] > $b['word'])
{
return 1;
}
elseif ($a['word'] == $b['word'])
{
return 0;
}
else
{
return -1;
}
}
/**
* HackNews热度计算公式
*
* @param $time
* @param $viewcount
*
* @return float|int
*/
public static function getGravity($time, $viewcount) {
$timegap = ($_SERVER['REQUEST_TIME'] - strtotime($time)) / 3600;
if ($timegap <= 24)
{
return 999999;
}
return round((pow($viewcount, 0.8) / pow(($timegap + 24), 1.2)), 3) * 1000;
}
public static function getGravityS($stime, $viewcount) {
$timegap = ($_SERVER['REQUEST_TIME'] - $stime) / 3600;
if ($timegap <= 24)
{
return 999999;
}
return round((pow($viewcount, 0.8) / pow(($timegap + 24), 1.2)), 3) * 1000;
}
/**
* 优化的file_get_contents操作，超时关闭
*
* @param $url
* @param bool $use_include_path
* @param null $stream_context
* @param int $curl_timeout
*
* @return bool|mixed|string
*/
public static function file_get_contents($url, $use_include_path = false, $stream_context = null, $curl_timeout = 8) {
if ($stream_context == null && preg_match('/^https?:\/\//', $url))
$stream_context = @stream_context_create(array('http' => array('timeout' => $curl_timeout)));
if (in_array(ini_get('allow_url_fopen'), array('On', 'on', '1')) || !preg_match('/^https?:\/\//', $url))
return @file_get_contents($url, $use_include_path, $stream_context);
elseif (function_exists('curl_init'))
{
$curl = curl_init();
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 5);
curl_setopt($curl, CURLOPT_TIMEOUT, $curl_timeout);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0);
$opts = stream_context_get_options($stream_context);