混合字符串函数
- PHP中文网原创
- 2016-05-23 08:39:371174浏览
1.fun.php
<?php
function utf8($str,$u=false)
{
if (substr($str, 0, 3) == chr(239) . chr(187) . chr(191)) {
$str = substr($str, 3);
} //去掉bom头
if (empty($str))
return false;
$c = $c2 = $c3 = 0;
$len = strlen($str);
for ($i = 0; $i < $len; $i++) {
$c = ord($str[$i]);
if ($c < 128){
if($u) return false; else continue;
}
elseif ($c > 127 && $c < 194)
return false;
elseif ($c > 193 && $c < 224) {
$i++;
$c = ord($str[$i]);
if ($c > 127 && $c < 192) {
continue;
} else {
return false;
}
} elseif ($c > 223 && $c < 240) {
$i++;
$c = ord($str[$i]);
$i++;
$c2 = ord($str[$i]);
if (($c > 127 && $c < 192) && ($c2 > 127 && $c2 < 192)) {
continue;
} else {
return false;
}
} elseif ($c > 239 && $c < 256) {
$i++;
$c = ord($str[$i]);
$i++;
$c2 = ord($str[$i]);
$i++;
$c3 = ord($str[$i]);
if (($c > 127 && $c < 192) && ($c2 > 127 && $c2 < 192) && ($c3 > 127 && $c3 < 192)) {
continue;
} else {
return false;
}
} elseif ($c > 255)
return false;
}
return true;
}
function gbk($str,$u=false)
{
if (empty($str))
return false;
$c = 0;
$len = strlen($str);
for ($i = 0; $i < $len; $i++) {
$c = ord($str[$i]);
if ($c < 128){
if($u) return false; else continue;}
elseif ($c == 128)
return false;
elseif ($c > 128 && $c < 255) {
$i++;
$c = ord($str[$i]);
if ($c > 63 && $c < 255) {
continue;
} else {
return false;
}
} elseif ($c > 254)
return false;
}
return true;
}
function gb2312($str,$u=false)
{
if (empty($str))
return false;
$c = 0;
$len = strlen($str);
for ($i = 0; $i < $len; $i++) {
$c = ord($str[$i]);
if ($c < 128){
if($u) return false; else continue;}
elseif ($c > 127 && $c < 176)
return false;
elseif ($c > 175 && $c < 248) {
$i++;
$c = ord($str[$i]);
if ($c > 159 && $c < 255) {
continue;
} else {
return false;
}
} elseif ($c > 247)
return false;
}
return true;
}
function big5($str,$u=false)
{
if (empty($str))
return false;
$c = 0;
$len = strlen($str);
for ($i = 0; $i < $len; $i++) {
$c = ord($str[$i]);
if ($c < 128){
if($u) return false; else continue;}
elseif ($c == 128)
return false;
elseif ($c > 128 && $c < 255) {
$i++;
$c = ord($str[$i]);
if (($c > 63 && $c < 127) || ($c > 160 && $c < 255)) {
continue;
} else {
return false;
}
} elseif ($c > 254)
return false;
}
return true;
}
function bianma($str,$enclist='')
{
if (empty($str)) {
return NULL;
}
if(empty($enclist)){
$enclist=array('utf-8','gb2312','big5','gbk');
}
foreach ((array)$enclist as $v) {
//$v = strtolower($v);
if ($v == 'utf-8') {
$v = 'utf8';
}
if ($v($str)) {
if ($v == 'utf8') {
return 'utf-8';
}
return $v;
}
}
if (function_exists('mb_detect_encoding')) {
if (!empty($enclist)) {
$return = mb_detect_encoding($str, $enclist);
if (!empty($return))
return strtolower($return);
}
}
return NULL;
}
/**
* 字符串截取，支持中文和其他编码
*/
function msubstr($str, $start=0, $length, $enclist='') {
if(empty($str))return NULL;
$charset=bianma($str,$enclist);
if(function_exists("mb_substr"))
$slice = mb_substr($str, $start, $length,$charset);
elseif(function_exists('iconv_substr')) {
$slice = iconv_substr($str,$start,$length,$charset);
}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], $str, $match);
$slice = join("",array_slice($match[0], $start, $length));
}
return $slice;
}
//混合字符串长度
function mstrlen($str,$enclist='') {if(empty($str))return 0;
$charset=bianma($str,$enclist);
if(function_exists("mb_strlen"))
$length = mb_strlen($str,$charset);
elseif(function_exists('iconv_strlen')) {
$length = iconv_strlen($str,$charset);
}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], $str, $match);
$length =count($match[0]);
}
return $length;
}
// 自动转换字符集
function charset($string,$to='utf-8',$from='',$enclist='') {
if (empty($string)||empty($to)) {
return $string;}
if(empty($from)){
$from=bianma($string,$enclist);}
if(empty($from)||($from==$to)){return $string;}
if (function_exists('mb_convert_encoding')) {
return mb_convert_encoding($string, $to, $from);
} elseif (function_exists('iconv')) {
return iconv($from, $to, $string);
} else {
return $string;
}
}
/**
* 产生随机字串，可用来自动生成密码
*/
function randstring($len=6,$u=false,$charlist='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789') {
$str ='';$repeat=1;
if($u){$l=mstrlen($charlist);
for($i=0;$i<$len;$i++){
$str.=msubstr($charlist, floor(mt_rand(0,$l-1)),1);
}
}else{
$repeat=ceil($len/strlen($charlist));
$charlist=str_shuffle(str_repeat($charlist,$repeat));
$str = substr($charlist,0,$len);
}
return $str;
}
//10进制转为n进制
function decn($n,$base=62,$index='') {
if(empty($index))
$index = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$ret = '';
for($t = floor(log10($n) / log10($base)); $t >= 0; $t --) {
$a = floor($n / pow($base, $t));
$ret .= substr($index, $a, 1);
$n -= $a * pow($base, $t);
}
return $ret;
}
//n进制转为10进制
function dec10($s,$base=62,$index='') {
if(empty($index))
$index = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$ret = 0;
$len = strlen($s) - 1;
for($t = 0; $t <= $len; $t ++) {
$ret += strpos($index, substr($s, $t, 1)) * pow($base, $len - $t);
}
return $ret;
}
/**
* 字符串加密、解密函数
*
*
* @param string $txt 字符串
* @param string $operation ENCODE为加密，DECODE为解密，可选参数，默认为ENCODE，
* @param string $key 密钥：数字、字母、下划线
* @param string $expiry 过期时间
* @return string
*/
function sys_auth($string, $operation = 'ENCODE', $key = '', $expiry = 0) {
$ckey_length = 4;
$key = md5($key != '' ? $key : pc_base::load_config('system', 'auth_key'));
$keya = md5(substr($key, 0, 16));
$keyb = md5(substr($key, 16, 16));
$keyc = $ckey_length ? ($operation == 'DECODE' ? substr($string, 0, $ckey_length): substr(md5(microtime()), -$ckey_length)) : '';
$cryptkey = $keya.md5($keya.$keyc);
$key_length = strlen($cryptkey);
$string = $operation == 'DECODE' ? base64_decode(strtr(substr($string, $ckey_length), '-_', '+/')) : sprintf('%010d', $expiry ? $expiry + time() : 0).substr(md5($string.$keyb), 0, 16).$string;
$string_length = strlen($string);
$result = '';
$box = range(0, 255);
$rndkey = array();
for($i = 0; $i <= 255; $i++) {
$rndkey[$i] = ord($cryptkey[$i % $key_length]);
}
for($j = $i = 0; $i < 256; $i++) {
$j = ($j + $box[$i] + $rndkey[$i]) % 256;
$tmp = $box[$i];
$box[$i] = $box[$j];
$box[$j] = $tmp;
}
for($a = $j = $i = 0; $i < $string_length; $i++) {
$a = ($a + 1) % 256;
$j = ($j + $box[$a]) % 256;
$tmp = $box[$a];
$box[$a] = $box[$j];
$box[$j] = $tmp;
$result .= chr(ord($string[$i]) ^ ($box[($box[$a] + $box[$j]) % 256]));
}
if($operation == 'DECODE') {
if((substr($result, 0, 10) == 0 || substr($result, 0, 10) - time() > 0) && substr($result, 10, 16) == substr(md5(substr($result, 26).$keyb), 0, 16)) {
return substr($result, 26);
} else {
return '';
}
} else {
return $keyc.rtrim(strtr(base64_encode($result), '+/', '-_'), '=');
}
}
/**
* gbk转拼音
* @param $txt
*/
function gbk_to_pinyin($txt) {
$txt=charset($txt,'gbk');
$l = strlen($txt);
$i = 0;
$pyarr = array();
$py = array();
$filename = __DIR__.'/gb-pinyin.table';
$fp = fopen($filename,'r');
while(!feof($fp)) {
$p = explode("-",fgets($fp,32));
$pyarr[intval($p[1])] = trim($p[0]);
}
fclose($fp);
ksort($pyarr);
while($i<$l) {
$tmp = ord($txt[$i]);
if($tmp>=128) {
$asc = abs($tmp*256+ord($txt[$i+1])-65536);
$i = $i+1;
} else $asc = $tmp;
$py[] = asc_to_pinyin($asc,$pyarr);
$i++;
}
return $py;
}
function asc_to_pinyin($asc,&$pyarr) {
if($asc < 128)return chr($asc);
elseif(isset($pyarr[$asc]))return $pyarr[$asc];
else {
foreach($pyarr as $id => $p) {
if($id >= $asc)return $p;
}
}
}
/**
* 繁体转简体
* @param $Text
*/
function big5_to_gbk($Text) {
$Text=charset($Text,'big5');
$BIG5_DATA = '';
$filename = __DIR__.'/big5-gb.table';
$fp = fopen($filename, 'rb');
$BIG5_DATA = fread($fp, filesize($filename));
fclose($fp);
$max = strlen($Text)-1;
for($i = 0; $i < $max; $i++) {
$h = ord($Text[$i]);
if($h >= 0x80) {
$l = ord($Text[$i+1]);
if($h==161 && $l==64) {
$gbstr = ' ';
} else {
$p = ($h-160)*510+($l-1)*2;
$gbstr = $BIG5_DATA[$p].$BIG5_DATA[$p+1];
}
$Text[$i] = $gbstr[0];
$Text[$i+1] = $gbstr[1];
$i++;
}
}
return $Text;
}
/**
* 简体转繁体
* @param $Text
*/
function gbk_to_big5($Text) { $Text=charset($Text,'gbk');
$GB_DATA='';
$filename = __DIR__.'/gb-big5.table';
$fp = fopen($filename, 'rb');
$GB_DATA = fread($fp, filesize($filename));
fclose($fp);
$max = strlen($Text)-1;
for($i = 0; $i < $max; $i++) {
$h = ord($Text[$i]);
if($h >= 0x80) {
$l = ord($Text[$i+1]);
if($h==161 && $l==64) {
$big = ' ';
} else {
$p = ($h-160)*510+($l-1)*2;
$big = $GB_DATA[$p].$GB_DATA[$p+1];
}
$Text[$i] = $big[0];
$Text[$i+1] = $big[1];
$i++;
}
}
return $Text;
}2.string.php
<?php require_once('../lib/string/fun.php'); //utf8检查 //参数 待检字符串,是否排除单字节 var_dump(utf8('的订单13052561263',1)); //gbk gb2312 big5检查 var_dump(gbk('的订单13052561263')); //检查编码 //参数 待检字符串 编码次序 var_dump(bianma('的订单13052561263')); //字符串截取，支持中文和其他编码 //参数 字符串,起始位置,长度,编码次序 echo msubstr('fg随g时bn随b地t',0,6),'<br/>'; //混合字符串长度 //参数 字符串,编码次序 echo mstrlen('fg随g时bn随b地t'),'<br/>'; //自动转换字符集 //参数 字符串,目标编码,来源编码,编码次序 echo charset('寶龍','big5'),'<br/>'; //产生随机字串 //参数 长度,是否支持中文字符,字符集 echo randstring('5',true,'宝个龙2wet'),'<br/>'; //10进制转为n进制 //参数 10进制数 ,目标进制,目标字符集 echo decn( '4340277777777777664',64,'0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!@'),'<br/>'; //n进制转为10进制 //参数 n进制数 ,目标进制,目标字符集 echo dec10('ab33',16),'<br/>'; //字符串加密、解密函数 //参数 字符串,ENCODE为加密，DECODE为解密,密钥,过期时间 $s=sys_auth('ss','ENCODE','ybl'); echo sys_auth($s,'DECODE','ybl'),'<br/>'; //gbk转拼音 var_dump(gbk_to_pinyin('订单到底')); echo '<br/>'; //繁体转简体 echo charset(big5_to_gbk('寶龍'),'gbk'),'<br/>'; //简体转繁体 echo gbk_to_big5('宝龙'),'<br/>';
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