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<?php
namespace App\Common;
class Helper
{
//保留两位小数,最后一位会四舍五入
public static function formatPrice($price)
{
return sprintf("%.2f",$price);
}
//验证是否是合法的手机号码
public static function isValidMobile($mobile)
{
return preg_match('/^(13[0-9]|14[0-9]|15[0-9]|17[0-9]|18[0-9])\d{8}$/', $mobile);
}
//验证是否是合法中文
public static function isValidChinese($word, $length = 16)
{
$pattern = "/(^[\x{4e00}-\x{9fa5}]+)/u";
preg_match($pattern, $word, $match);
if (!$match)
{
return false;
}
if (mb_strlen($match[1]) > $length)
{
return false;
}
return $match[1];
}
//验证是否是合法的身份证号,简单验证
public static function isValidIdCardNo($idcard)
{
$length = strlen($idcard);
//15位老身份证
if ($length == 15)
{
if (checkdate(substr($idcard, 8, 2), substr($idcard, 10, 2), '19' . substr($idcard, 6, 2)))
{
return true;
}
}
//18位二代身份证号
if ($length == 18)
{
if (!checkdate(substr($idcard, 10, 2), substr($idcard, 12, 2), substr($idcard, 6, 4)))
{
return false;
}
$idcard = str_split($idcard);
if (strtolower($idcard[17]) == 'x')
{
$idcard[17] = '10';
}
//加权求和
$sum = 0;
//加权因子
$wi = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1];
for ($i = 0; $i < 17; $i++)
{
$sum += $wi[$i] * $idcard[$i];
}
//得到验证码所位置
$position = $sum % 11;
//身份证验证位值 10代表X
$code = [1, 0, 10, 9, 8, 7, 6, 5, 4, 3, 2];
if ($idcard[17] == $code[$position])
{
return true;
}
}
return false;
}
//验证是否是合法的银行卡,不包含信用卡
public static function isValidBankCard($card)
{
if (!is_numeric($card))
{
return false;
}
if (strlen($card) < 16 || strlen($card) > 19)
{
return false;
}
$cardHeader = [10, 18, 30, 35, 37, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 58, 60, 62, 65, 68, 69, 84, 87, 88, 94, 95, 98, 99];
if (!in_array(substr($card, 0, 2), $cardHeader))
{
return false;
}
$numShouldCheck = str_split(substr($card, 0, -1));
krsort($numShouldCheck);
$odd = $odd['gt9'] = $odd['gt9']['tens'] = $odd['gt9']['unit'] = $odd['lt9'] = $even = [];
array_walk($numShouldCheck, function ($item, $key) use (&$odd, &$even, $card){
if ((strlen($card) == 16) && (substr($card, 0, 2) == '62'))
{
$key += 1;
}
if (($key & 1))
{
$t = $item * 2;
if ($t > 9)
{
$odd['gt9']['unit'][] = intval($t % 10);
$odd['gt9']['tens'][] = intval($t / 10);
}
else
{
$odd['lt9'][] = $t;
}
}
else
{
$even[] = $item;
}
});
$total = array_sum($even);
array_walk_recursive($odd, function ($item, $key) use (&$total) {
$total += $item;
});
$luhm = 10 - ($total % 10 == 0 ? 10 : $total % 10);
$lastNumOfCard = substr($card, -1, 1);
if ($luhm != $lastNumOfCard)
{
return false;
}
return true;
}
//随机字母
public static function randLetter($len)
{
$letter = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'];
$result = '';
for ($i = 0; $i < $len; $i++)
{
$result .= $letter[array_rand($letter, 1)];
}
return $result;
}
/**
* 取得随机字符串
*
* @param int $length 生成随机数的长度
* @param int $numeric 是否只产生数字随机数 1是0否
* @return string
*/
public static function getRandomString($length, $numeric = 0)
{
$seed = base_convert(md5(microtime().$_SERVER['DOCUMENT_ROOT']), 16, $numeric ? 10 : 35);
$seed = $numeric ? (str_replace('0', '', $seed).'012340567890') : ($seed.'zZ'.strtoupper($seed));
$hash = '';
$max = strlen($seed) - 1;
for($i = 0; $i < $length; $i++)
{
$hash .= $seed{mt_rand(0, $max)};
}
return $hash;
}
//生成二维码
public static function qrcode($url,$size=150)
{
return 'data:image/png;base64,'.base64_encode(\QrCode::format('png')->encoding('UTF-8')->size($size)->margin(0)->errorCorrection('H')->generate($url));
}
//获取浏览器信息
public static function getBrowser()
{
$browser = array('name'=>'unknown', 'version'=>'unknown');
if(empty($_SERVER['HTTP_USER_AGENT'])) return $browser;
$agent = $_SERVER["HTTP_USER_AGENT"];
// Chrome should checked before safari
if(strpos($agent, 'Firefox') !== false) $browser['name'] = "firefox";
if(strpos($agent, 'Opera') !== false) $browser['name'] = 'opera';
if(strpos($agent, 'Safari') !== false) $browser['name'] = 'safari';
if(strpos($agent, 'Chrome') !== false) $browser['name'] = "chrome";
// Check the name of browser
if(strpos($agent, 'MSIE') !== false || strpos($agent, 'rv:11.0')) $browser['name'] = 'ie';
if(strpos($agent, 'Edge') !== false) $browser['name'] = 'edge';
// Check the version of browser
if(preg_match('/MSIE\s(\d+)\..*/i', $agent, $regs)) $browser['version'] = $regs[1];
if(preg_match('/FireFox\/(\d+)\..*/i', $agent, $regs)) $browser['version'] = $regs[1];
if(preg_match('/Opera[\s|\/](\d+)\..*/i', $agent, $regs)) $browser['version'] = $regs[1];
if(preg_match('/Chrome\/(\d+)\..*/i', $agent, $regs)) $browser['version'] = $regs[1];
if((strpos($agent, 'Chrome') == false) && preg_match('/Safari\/(\d+)\..*$/i', $agent, $regs)) $browser['version'] = $regs[1];
if(preg_match('/rv:(\d+)\..*/i', $agent, $regs)) $browser['version'] = $regs[1];
if(preg_match('/Edge\/(\d+)\..*/i', $agent, $regs)) $browser['version'] = $regs[1];
return $browser;
}
/**
* 检查是否是AJAX请求。
* Check is ajax request.
*
* @static
* @access public
* @return bool
*/
public static function isAjaxRequest()
{
if(isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest') return true;
if(isset($_GET['HTTP_X_REQUESTED_WITH']) && $_GET['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest') return true;
return false;
}
/**
* 检查是否是POST请求
*/
public static function isPostRequest()
{
if($_SERVER['REQUEST_METHOD'] == 'POST') return true;
if($_POST) return true;
return false;
}
/**
* 是否是GET提交的
*/
public static function isGetRequest()
{
return $_SERVER['REQUEST_METHOD'] == 'GET' ? true : false;
}
/**
* 301跳转。
* Header 301 Moved Permanently.
*
* @param string $locate
* @access public
* @return void
*/
public static function header301($locate)
{
header('HTTP/1.1 301 Moved Permanently');
die(header('Location:' . $locate));
}
/**
* 获取远程IP。
* Get remote ip.
*
* @access public
* @return string
*/
public static function getRemoteIp()
{
$ip = '';
if(!empty($_SERVER["REMOTE_ADDR"])) $ip = $_SERVER["REMOTE_ADDR"];
if(!empty($_SERVER["HTTP_X_FORWARDED_FOR"])) $ip = $_SERVER["HTTP_X_FORWARDED_FOR"];
if(!empty($_SERVER['HTTP_CLIENT_IP'])) $ip = $_SERVER['HTTP_CLIENT_IP'];
return $ip;
}
/**
* 建立文件夹
*
* @param string $aimUrl
* @return viod
*/
public static function createDir($aimUrl)
{
$aimUrl = str_replace('', '/', $aimUrl);
$aimDir = '';
$arr = explode('/', $aimUrl);
$result = true;
foreach ($arr as $str)
{
$aimDir .= $str . '/';
if (!file_exists($aimDir))
{
$result = mkdir($aimDir);
}
}
return $result;
}
//判断访问终端是否是微信浏览器
public static function isWechatBrowser()
{
if (strpos($_SERVER['HTTP_USER_AGENT'], 'MicroMessenger') !== false)
{
return true;
}
return false;
}
//判断是不是https
public static function isHttpsRequest()
{
if((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') || (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https')) return true;
if($_SERVER['SERVER_PORT'] == 443) return true;
return false;
}
/**
* @name php获取中文字符拼音首字母
* @param $str
* @return null|string
*/
public function getFirstCharter($str)
{
if (empty($str))
{
return '';
}
$fchar = ord($str{0});
if ($fchar >= ord('A') && $fchar <= ord('z')) return strtoupper($str{0});
$s1 = iconv('UTF-8', 'gb2312', $str);
$s2 = iconv('gb2312', 'UTF-8', $s1);
$s = $s2 == $str ? $s1 : $str;
$asc = ord($s{0}) * 256 + ord($s{1}) - 65536;
if ($asc >= -20319 && $asc <= -20284) return 'A';
if ($asc >= -20283 && $asc <= -19776) return 'B';
if ($asc >= -19775 && $asc <= -19219) return 'C';
if ($asc >= -19218 && $asc <= -18711) return 'D';
if ($asc >= -18710 && $asc <= -18527) return 'E';
if ($asc >= -18526 && $asc <= -18240) return 'F';
if ($asc >= -18239 && $asc <= -17923) return 'G';
if ($asc >= -17922 && $asc <= -17418) return 'H';
if ($asc >= -17417 && $asc <= -16475) return 'J';
if ($asc >= -16474 && $asc <= -16213) return 'K';
if ($asc >= -16212 && $asc <= -15641) return 'L';
if ($asc >= -15640 && $asc <= -15166) return 'M';
if ($asc >= -15165 && $asc <= -14923) return 'N';
if ($asc >= -14922 && $asc <= -14915) return 'O';
if ($asc >= -14914 && $asc <= -14631) return 'P';
if ($asc >= -14630 && $asc <= -14150) return 'Q';
if ($asc >= -14149 && $asc <= -14091) return 'R';
if ($asc >= -14090 && $asc <= -13319) return 'S';
if ($asc >= -13318 && $asc <= -12839) return 'T';
if ($asc >= -12838 && $asc <= -12557) return 'W';
if ($asc >= -12556 && $asc <= -11848) return 'X';
if ($asc >= -11847 && $asc <= -11056) return 'Y';
if ($asc >= -11055 && $asc <= -10247) return 'Z';
return '';
}
/**
* 图片转base64
* @param image_file String 图片路径
* @return 转为base64的图片
*/
public static function Base64EncodeImage($image_file)
{
if(file_exists($image_file) || is_file($image_file))
{
$base64_image = '';
$image_info = getimagesize($image_file);
$image_data = fread(fopen($image_file, 'r'), filesize($image_file));
$base64_image = 'data:' . $image_info['mime'] . ';base64,' . chunk_split(base64_encode($image_data));
return $base64_image;
}
return false;
}
//提取数字
public static function findNum($str='')
{
$str=trim($str);
if(empty($str)){return '';}
$reg='/(\d{3}(\.\d+)?)/is';//匹配数字的正则表达式
preg_match_all($reg,$str,$result);
if(is_array($result)&&!empty($result)&&!empty($result[1])&&!empty($result[1][0])){
return $result[1][0];
}
return '';
}
/**
* 过滤emoji
*/
public static function filterEmoji($str)
{
// preg_replace_callback执行一个正则表达式搜索并且使用一个回调进行替换
$str = preg_replace_callback('/./u', function (array $match) {
return strlen($match[0]) >= 4 ? '' : $match[0];
}, $str);
return $str;
}
//判断是移动端访问
public static function is_mobile_access()
{
// 如果有HTTP_X_WAP_PROFILE则一定是移动设备
if (isset ($_SERVER['HTTP_X_WAP_PROFILE'])) {
return true;
}
//此条摘自TPM智能切换模板引擎,适合TPM开发
if (isset ($_SERVER['HTTP_CLIENT']) && 'PhoneClient' == $_SERVER['HTTP_CLIENT']) {
return true;
}
//如果via信息含有wap则一定是移动设备,部分服务商会屏蔽该信息
if (isset ($_SERVER['HTTP_VIA'])) {
//找不到为flase,否则为true
return stristr($_SERVER['HTTP_VIA'], 'wap') ? true : false;
}
//判断手机发送的客户端标志,兼容性有待提高
if (isset ($_SERVER['HTTP_USER_AGENT'])) {
$clientkeywords = array(
'nokia', 'sony', 'ericsson', 'mot', 'samsung', 'htc', 'sgh', 'lg', 'sharp', 'sie-', 'philips', 'panasonic', 'alcatel', 'lenovo', 'iphone', 'ipod', 'blackberry', 'meizu', 'android', 'netfront', 'symbian', 'ucweb', 'windowsce', 'palm', 'operamini', 'operamobi', 'openwave', 'nexusone', 'cldc', 'midp', 'wap', 'mobile'
);
//从HTTP_USER_AGENT中查找手机浏览器的关键字
if (preg_match("/(" . implode('|', $clientkeywords) . ")/i", strtolower($_SERVER['HTTP_USER_AGENT']))) {
return true;
}
}
//协议法,因为有可能不准确,放到最后判断
if (isset ($_SERVER['HTTP_ACCEPT'])) {
// 如果只支持wml并且不支持html那一定是移动设备
// 如果支持wml和html但是wml在html之前则是移动设备
if ((strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') !== false) && (strpos($_SERVER['HTTP_ACCEPT'], 'text/html') === false || (strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') < strpos($_SERVER['HTTP_ACCEPT'], 'text/html')))) {
return true;
}
}
return false;
}
}