*/
namespace xin\helper;
/**
* 字符串工具类
*
* @package xin\helper
*/
final class Str{
/**
* 驼峰转下划线缓存
*
* @var array
*/
protected static $snakeCache = [];
/**
* 下划线转驼峰(首字母小写) 缓存
*
* @var array
*/
protected static $camelCache = [];
/**
* 下划线转驼峰(首字母大写)
*
* @var array
*/
protected static $studlyCache = [];
/**
* 检查字符串中是否包含某些字符串
*
* @param string $haystack
* @param string|array $needles
* @return bool
*/
public static function contains($haystack, $needles){
foreach((array)$needles as $needle){
if($needle != '' && mb_strpos($haystack, $needle) !== false){
return true;
}
}
return false;
}
/**
* 检查字符串是否以某些字符串结尾
*
* @param string $haystack
* @param string|array $needles
* @return bool
*/
public static function endsWith($haystack, $needles){
foreach((array)$needles as $needle){
if((string)$needle === static::subString($haystack, -mb_strlen($needle))){
return true;
}
}
return false;
}
/**
* 字符串截取，支持中文和其他编码
*
* @param string $value 验证的值
* @param int $start 开始位置
* @param int $length 截取长度
* @param string $charset 字符编码
* @return string
*/
public static function subString($value, $start = 0, $length = null, $charset = null){
if(function_exists("mb_substr"))
$slice = mb_substr($value, $start, $length, $charset);
elseif(function_exists('iconv_substr')){
$length = is_null($length) ? $length = 'iconv_strlen($str, $charset)' : $length;
$charset = is_null($charset) ? $charset = 'ini_get("iconv.internal_encoding")' : $charset;
$slice = iconv_substr($value, $start, $length, $charset);
if(false === $slice){
$slice = '';
}
}else{
$re ['utf-8'] = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xff][\x80-\xbf]{3}/";
$re ['gb2312'] = "/[\x01-\x7f]|[\xb0-\xf7][\xa0-\xfe]/";
$re ['gbk'] = "/[\x01-\x7f]|[\x81-\xfe][\x40-\xfe]/";
$re ['big5'] = "/[\x01-\x7f]|[\x81-\xfe]([\x40-\x7e]|\xa1-\xfe])/";
preg_match_all($re [$charset], $value, $match);
$slice = join("", array_slice($match [0], $start, $length));
}
return $slice;
}
/**
* 检查字符串是否以某些字符串开头
*
* @param string $haystack
* @param string|array $needles
* @return bool
*/
public static function startsWith($haystack, $needles){
foreach((array)$needles as $needle){
if($needle != '' && mb_strpos($haystack, $needle) === 0){
return true;
}
}
return false;
}
/**
* 字符串转小写
*
* @param string $value
* @return string
*/
public static function lower($value){
return mb_strtolower($value, 'UTF-8');
}
/**
* 字符串转大写
*
* @param string $value
* @return string
*/
public static function upper($value){
return mb_strtoupper($value, 'UTF-8');
}
/**
* 获取字符串的长度
*
* @param string $value
* @return int
*/
public static function length($value){
return mb_strlen($value);
}
/**
* 驼峰转下划线
*
* @param string $value
* @param string $delimiter
* @param bool $isCache
* @return string
*/
public static function snake($value, $delimiter = '_', $isCache = true){
$key = $value;
if(isset(static::$snakeCache[$key][$delimiter])){
return static::$snakeCache[$key][$delimiter];
}
if(!ctype_lower($value)){
$value = preg_replace('/\s+/u', '', $value);
$value = static::lower(preg_replace('/(.)(?=[A-Z])/u', '$1'.$delimiter, $value));
}
return $isCache ? static::$snakeCache[$key][$delimiter] = $value : $value;
}
/**
* 清除驼峰转下划线缓存
*/
public static function clearSnakeCache(){
self::$snakeCache = [];
}
/**
* 下划线转驼峰(首字母小写)
*
* @param string $value
* @param bool $isCache
* @return string
*/
public static function camel($value, $isCache = true){
if(isset(static::$camelCache[$value])){
return static::$camelCache[$value];
}
$value = lcfirst(static::studly($value));
return $isCache ? static::$camelCache[$value] = $value : $value;
}
/**
* 清除下划线转驼峰(首字母小写)缓存
*/
public static function clearCamelCache(){
self::$snakeCache = [];
}
/**
* 下划线转驼峰(首字母大写)
*
* @param string $value
* @param bool $isCache
* @return string
*/
public static function studly($value, $isCache = true){
$key = $value;
if(isset(static::$studlyCache[$key])){
return static::$studlyCache[$key];
}
$value = ucwords(str_replace(['-', '_'], ' ', $value));
$value = str_replace(' ', '', $value);
return $isCache ? static::$studlyCache[$key] = $value : $value;
}
/**
* 清除下划线转驼峰(首字母大写)缓存
*/
public static function clearStudlyCache(){
self::$snakeCache = [];
}
/**
* 转为首字母大写的标题格式
*
* @param string $value
* @return string
*/
public static function title($value){
return mb_convert_case($value, MB_CASE_TITLE, 'UTF-8');
}
/**
* 实现多种字符编码方式
*
* @param string $input 数据源
* @param string $_output_charset 输出的字符编码
* @param string $_input_charset 输入的字符编码
* @return string
*/
public static function charsetEncode($input, $_output_charset, $_input_charset){
if(!isset ($_output_charset))
$_output_charset = $_input_charset;
if($_input_charset == $_output_charset || $input == null){
$output = $input;
}elseif(function_exists("mb_convert_encoding")){
$output = mb_convert_encoding($input, $_output_charset, $_input_charset);
}elseif(function_exists("iconv")){
$output = iconv($_input_charset, $_output_charset, $input);
}else{
throw new \RuntimeException("不支持 $_input_charset 到 $_output_charset 编码！");
}
return $output;
}
/**
* 实现多种字符解码方式
*
* @param string $input 数据源
* @param string $_input_charset 输入的字符编码
* @param string $_output_charset 输出的字符编码
* @return string
*/
public static function charsetDecode($input, $_input_charset, $_output_charset){
if($_input_charset == $_output_charset || $input == null){
$output = $input;
}elseif(function_exists("mb_convert_encoding")){
$output = mb_convert_encoding($input, $_output_charset, $_input_charset);
}elseif(function_exists("iconv")){
$output = iconv($_input_charset, $_output_charset, $input);
}else{
throw new \RuntimeException("不支持 $_input_charset 到 $_output_charset 解码！");
}
return $output;
}
/**
* 获取随机字符串
*
* @param int $length
* @param int $type
* @return string
*/
public static function random($length = 16, $type = 5){
$pool = [
0 => '0123456789',
1 => 'abcdefghijklmnopqrstuvwxyz',
2 => 'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
];
$poolStr = '';
if(0 == $type) $poolStr = $pool[0];
if(1 == $type) $poolStr = $pool[1];
if(2 == $type) $poolStr = $pool[2];
if(3 == $type) $poolStr = $pool[0].$pool[1];
if(4 == $type) $poolStr = $pool[1].$pool[2];
if(5 == $type) $poolStr = $pool[0].$pool[1].$pool[2];
return self::substr(str_shuffle(str_repeat($poolStr, $length)), 0, $length);
}
/**
* 截取字符串
*
* @param string $string
* @param int $start
* @param int|null $length
* @return string
*/
public static function substr($string, $start, $length = null){
return mb_substr($string, $start, $length, 'UTF-8');
}
/**
* 生成随机字符串
*
* @param string $factor
* @return string
*/
public static function nonceHash32($factor = ''){
return md5(uniqid(md5(microtime(true).$factor), true));
}
/**
* 创建订单编号
*
* @param string $prefix
* @return string
*/
public static function makeOrderSn($prefix = ''){ // 取出订单编号
$datetime = date('YmdHis');
$microtime = explode(' ', microtime());
$microtime = intval($microtime[0] ? $microtime[0] * 100000 : 100000);
$nonceStr = substr(implode(null, array_map('ord', str_split(substr(uniqid(), 7, 13), 1))), 0, 8);
return $prefix.$datetime.$microtime.$nonceStr;
}
/**
* 创建一个随机名字
*
* @param string $firstName
* @param int $lastNameLength 名字字数
* @param string $delimiter
* @return string
*/
public static function createName($firstName = null, $lastNameLength = 2, $delimiter = ''){
static $data = null;
if(is_null($data)){
$data = require_once './name_config.php';
}
//姓氏
if(empty($firstName)){
$len = count($data['first_name_list']);
$firstName = $data['first_name_list'][rand(0, $len - 1)];
}
//名字
$len = count($data['chars']);
$lastName = '';
for($i = 0; $i < $lastNameLength; $i++){
$lastName .= $data [rand(0, $len - 1)];
}
return $firstName.$delimiter.$lastName;
}
/**
* 解析Url Query
*
* @param string $url url地址或URL query参数
* @return array
*/
public static function parseUrlQuery($url){
$index = strpos($url, "?");
$url = $index === false ? $url : substr($url, $index);
parse_str($url, $result);
return $result;
//
// //分隔数据
// $querys = explode("&", $url);
// unset($url);
// $regx = "/\\[(.*?)\\]/";
// //返回的结果
// $result = [];
// foreach($querys as $key => $val){
// list($name, $value) = explode('=', $val, 2);
// unset($querys[$key]);
//
// $name = trim($name);
// //是否为数组
// if(preg_match($regx, $name, $matches)){
// $matches = $matches[1];
// $name = substr($name, 0, strpos($name, "[") - 1);
// if(empty($matches))
// $result[$name][] = $value;
// else
// $result[$name][$matches] = $value;
// }else{
// $result[$name] = $value;
// }
// }
// return $result;
}
/**
* 把数组所有元素按照“参数=参数值”的模式用“&”字符拼接成字符串
*
* @param array $params 关联数组
* @param string $handleFunc 值处理函数
* @return string
*/
public static function buildUrlQuery($params, $handleFunc = null){
if(!is_callable($handleFunc)) $handleFunc = function($key, $val){
$type = gettype($val);
if($type == 'object' || $type == 'array') return '';
$val = urlencode($val);
return $key.'='.$val;
};
$result = '';
$i = 0;
foreach($params as $key => $val){
$str = $handleFunc($key, $val);
if($str === '') continue;
$result .= ($i === 0 ? '' : '&').$str;
$i++;
}
return $result;
}
/**
* 将XML转换成数组
*
* @param string $xml
* @return mixed
*/
public static function parseXml($xml){
//将XML转为array,禁止引用外部xml实体
libxml_disable_entity_loader(true);
$info = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);
return $info;
}
/**
* 数组转XML(微信)
*
* @param array $param 要转换的数组
* @param string $root 根元素
* @param string $tag 指定元素标签名称，主要用于索引数组
* @return string
*/
public static function encodeXml($param, $root = 'xml', $tag = ''){
if(!is_array($param) || count($param) <= 0) return '';
$xml = '';
foreach($param as $key => $val){
$key = empty($tag) ? $key : $tag;
if(is_int($val)){
$xml .= "<".$key.">".$val."";
$root = !empty($tag) ? '' : $root;
}elseif(is_array($val)){
$tempRoot = Arr::isAssoc($param) ? $key : '';
$tempTag = (Arr::isAssoc($param) && !Arr::isAssoc($val)) ? $key : '';
$xml .= self::encodeXml($val, $tempRoot, $tempTag);
}else{
$xml .= "<".$key.">";
$root = !empty($tag) ? '' : $root;
}
}
$xml = (empty($root) ? "" : "<$root>").$xml.(empty($root) ? "" : "");
return $xml;
}
/**
* 解析UBB语法
*
* @param string $Text 要解析的文本
* @return mixed|string
*/
public static function parseUBB($Text){
$Text = trim($Text);
$Text = htmlspecialchars($Text);
$Text = preg_replace("/\\t/is", " ", $Text);
$Text = preg_replace("/\\[h1\\](.+?)\\[\\/h1\\]/is", "\\1
", $Text);
$Text = preg_replace("/\\[h2\\](.+?)\\[\\/h2\\]/is", "\\1
", $Text);
$Text = preg_replace("/\\[h3\\](.+?)\\[\\/h3\\]/is", "\\1
", $Text);
$Text = preg_replace("/\\[h4\\](.+?)\\[\\/h4\\]/is", "\\1
", $Text);
$Text = preg_replace("/\\[h5\\](.+?)\\[\\/h5\\]/is", "\\1
", $Text);
$Text = preg_replace("/\\[h6\\](.+?)\\[\\/h6\\]/is", "\\1
", $Text);
$Text = preg_replace("/\\[separator\\]/is", "", $Text);
$Text = preg_replace("/\\[center\\](.+?)\\[\\/center\\]/is", "\\1",
$Text);
$Text = preg_replace("/\\[url=http:\\/\\/([^\\[]*)\\](.+?)\\[\\/url\\]/is", "\\2", $Text);
$Text = preg_replace("/\\[url=([^\\[]*)\\](.+?)\\[\\/url\\]/is", "\\2", $Text);
$Text = preg_replace("/\\[url\\]http:\\/\\/([^\\[]*)\\[\\/url\\]/is", "\\1", $Text);
$Text = preg_replace("/\\[url\\]([^\\[]*)\\[\\/url\\]/is", "\\1", $Text);
$Text = preg_replace("/\\[img\\](.+?)\\[\\/img\\]/is", "![](\"\\1\")
", $Text);
$Text = preg_replace("/\\[color=(.+?)\\](.+?)\\[\\/color\\]/is", "\\2", $Text);
$Text = preg_replace("/\\[size=(.+?)\\](.+?)\\[\\/size\\]/is", "\\2", $Text);
$Text = preg_replace("/\\[sup\\](.+?)\\[\\/sup\\]/is", "\\1", $Text);
$Text = preg_replace("/\\[sub\\](.+?)\\[\\/sub\\]/is", "\\1", $Text);
$Text = preg_replace("/\\[pre\\](.+?)\\[\\/pre\\]/is", "\\1
", $Text);
$Text = preg_replace("/\\[email\\](.+?)\\[\\/email\\]/is", "\\1", $Text);
$Text = preg_replace("/\\[colorTxt\\](.+?)\\[\\/colorTxt\\]/eis", "color_txt('\\1')", $Text);
$Text = preg_replace("/\\[emot\\](.+?)\\[\\/emot\\]/eis", "emot('\\1')", $Text);
$Text = preg_replace("/\\[i\\](.+?)\\[\\/i\\]/is", "\\1", $Text);
$Text = preg_replace("/\\[u\\](.+?)\\[\\/u\\]/is", "\\1", $Text);
$Text = preg_replace("/\\[b\\](.+?)\\[\\/b\\]/is", "\\1", $Text);
$Text = preg_replace("/\\[quote\\](.+?)\\[\\/quote\\]/is", " ", $Text);
$Text = preg_replace("/\\[code\\](.+?)\\[\\/code\\]/eis", "highlight_code('\\1')", $Text);
$Text = preg_replace("/\\[php\\](.+?)\\[\\/php\\]/eis", "highlight_code('\\1')", $Text);
$Text = preg_replace("/\\[sig\\](.+?)\\[\\/sig\\]/is", "\\1
", $Text);
$Text = preg_replace("/\\n/is", "
", $Text);
return $Text;
}
}