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- 06.01.2017
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Utf8.php
001 <?php
002
003 /*
004 * Copyright (C) 2016 Nicolas Grekas - p@tchwork.com
005 *
006 * This library is free software; you can redistribute it and/or modify it
007 * under the terms of the (at your option):
008 * Apache License v2.0 (http://apache.org/licenses/LICENSE-2.0.txt), or
009 * GNU General Public License v2.0 (http://gnu.org/licenses/gpl-2.0.txt).
010 */
011
012 namespace Patchwork;
013
014 use Normalizer as n;
015
016 /**
017 * UTF-8 Grapheme Cluster aware string manipulations implementing the quasi complete
018 * set of native PHP string functions that need UTF-8 awareness and more.
019 * Missing are printf-family functions.
020 */
021 class Utf8
022 {
023 protected static $pathPrefix;
024 protected static $commonCaseFold = array(
025 array('µ','ſ',"\xCD\x85",'ς',"\xCF\x90","\xCF\x91","\xCF\x95","\xCF\x96","\xCF\xB0","\xCF\xB1","\xCF\xB5","\xE1\xBA\x9B","\xE1\xBE\xBE"),
026 array('μ','s','ι', 'σ','β', 'θ', 'φ', 'π', 'κ', 'ρ', 'ε', "\xE1\xB9\xA1",'ι'),
027 );
028 protected static $cp1252 = array('','','','','
','','','','','','','','','','','','','','','','','','','','','','');
029 protected static $utf8 = array('€','‚','ƒ','„','…','†','‡','ˆ','‰','Š','‹','Œ','Ž','‘','’','“','”','•','–','—','˜','™','š','›','œ','ž','Ÿ');
030
031 public static function isUtf8($s)
032 {
033 return (bool) preg_match('//u', $s); // Since PHP 5.2.5, this also excludes invalid five and six bytes sequences
034 }
035
036 // Generic UTF-8 to ASCII transliteration
037
038 public static function toAscii($s, $subst_chr = '?')
039 {
040 if (preg_match("/[\x80-\xFF]/", $s)) {
041 static $translitExtra = array();
042 $translitExtra or $translitExtra = static::getData('translit_extra');
043
044 $s = n::normalize($s, n::NFKC);
045
046 $glibc = 'glibc' === ICONV_IMPL;
047
048 preg_match_all('/./u', $s, $s);
049
050 foreach ($s[0] as &$c) {
051 if (!isset($c[1])) {
052 continue;
053 }
054
055 if ($glibc) {
056 $t = iconv('UTF-8', 'ASCII//TRANSLIT', $c);
057 } else {
058 $t = iconv('UTF-8', 'ASCII//IGNORE//TRANSLIT', $c);
059
060 if (!isset($t[0])) {
061 $t = '?';
062 } elseif (isset($t[1])) {
063 $t = ltrim($t, '\'`"^~');
064 }
065 }
066
067 if ('?' === $t) {
068 if (isset($translitExtra[$c])) {
069 $t = $translitExtra[$c];
070 } else {
071 $t = n::normalize($c, n::NFD);
072
073 if ($t[0] < "\x80") {
074 $t = $t[0];
075 } else {
076 $t = $subst_chr;
077 }
078 }
079 }
080
081 $c = $t;
082 }
083
084 $s = implode('', $s[0]);
085 }
086
087 return $s;
088 }
089
090 public static function wrapPath($path = '')
091 {
092 if (null === static::$pathPrefix) {
093 static $hasWfio;
094 isset($hasWfio) or $hasWfio = extension_loaded('wfio');
095
096 if ($hasWfio) {
097 static::$pathPrefix = 'wfio://';
098 } elseif ('\\' === DIRECTORY_SEPARATOR && class_exists('COM', false)) {
099 static::$pathPrefix = 'utf8'.mt_rand();
100 stream_wrapper_register(static::$pathPrefix, 'Patchwork\Utf8\WindowsStreamWrapper');
101 static::$pathPrefix .= '://';
102 } else {
103 if ('\\' === DIRECTORY_SEPARATOR) {
104 trigger_error('The `wfio` or `com_dotnet` extension is required to handle UTF-8 filesystem access on Windows');
105 }
106 static::$pathPrefix = 'file://';
107 }
108 }
109
110 return static::$pathPrefix.$path;
111 }
112
113 public static function filter($var, $normalization_form = 4 /* n::NFC */, $leading_combining = '◌')
114 {
115 switch (gettype($var)) {
116 case 'array':
117 foreach ($var as $k => $v) {
118 $var[$k] = static::filter($v, $normalization_form, $leading_combining);
119 }
120 break;
121
122 case 'object':
123 foreach ($var as $k => $v) {
124 $var->$k = static::filter($v, $normalization_form, $leading_combining);
125 }
126 break;
127
128 case 'string':
129 if (false !== strpos($var, "\r")) {
130 // Workaround https://bugs.php.net/65732
131 $var = str_replace("\r\n", "\n", $var);
132 $var = strtr($var, "\r", "\n");
133 }
134
135 if (preg_match('/[\x80-\xFF]/', $var)) {
136 if (n::isNormalized($var, $normalization_form)) {
137 $n = '-';
138 } else {
139 $n = n::normalize($var, $normalization_form);
140 if (isset($n[0])) {
141 $var = $n;
142 } else {
143 $var = static::utf8_encode($var);
144 }
145 }
146
147 if ($var[0] >= "\x80" && isset($n[0], $leading_combining[0]) && preg_match('/^\p{Mn}/u', $var)) {
148 // Prevent leading combining chars
149 // for NFC-safe concatenations.
150 $var = $leading_combining.$var;
151 }
152 }
153 break;
154 }
155
156 return $var;
157 }
158
159 // Unicode transformation for caseless matching
160 // see http://unicode.org/reports/tr21/tr21-5.html
161
162 public static function strtocasefold($s, $full = true)
163 {
164 $s = str_replace(self::$commonCaseFold[0], self::$commonCaseFold[1], $s);
165
166 if ($full) {
167 static $fullCaseFold = false;
168 $fullCaseFold or $fullCaseFold = static::getData('caseFolding_full');
169
170 $s = str_replace($fullCaseFold[0], $fullCaseFold[1], $s);
171 }
172
173 return static::strtolower($s);
174 }
175
176 // Generic case sensitive collation support for self::strnatcmp()
177
178 public static function strtonatfold($s)
179 {
180 $s = n::normalize($s, n::NFD);
181
182 return preg_replace('/\p{Mn}+/u', '', $s);
183 }
184
185 // PHP string functions that need UTF-8 awareness
186
187 public static function filter_input($type, $var, $filter = FILTER_DEFAULT, $option = null)
188 {
189 if (4 > func_num_args()) {
190 $var = filter_input($type, $var, $filter);
191 } else {
192 $var = filter_input($type, $var, $filter, $option);
193 }
194
195 return static::filter($var);
196 }
197
198 public static function filter_input_array($type, $def = null, $add_empty = true)
199 {
200 if (2 > func_num_args()) {
201 $a = filter_input_array($type);
202 } else {
203 $a = filter_input_array($type, $def, $add_empty);
204 }
205
206 return static::filter($a);
207 }
208
209 public static function json_decode($json, $assoc = false, $depth = 512, $options = 0)
210 {
211 if (PHP_VERSION_ID < 50400) {
212 $json = json_decode($json, $assoc, $depth);
213 } else {
214 $json = json_decode($json, $assoc, $depth, $options);
215 }
216
217 return static::filter($json);
218 }
219
220 public static function substr($s, $start, $len = 2147483647)
221 {
222 static $bug62759;
223 isset($bug62759) or $bug62759 = extension_loaded('intl') && 'à' === @grapheme_substr('éà', 1, -2);
224
225 if ($bug62759) {
226 return PHP\Shim\Intl::grapheme_substr_workaround62759($s, $start, $len);
227 } else {
228 return grapheme_substr($s, $start, $len);
229 }
230 }
231
232 public static function strlen($s)
233 {
234 return grapheme_strlen($s);
235 }
236 public static function strpos($s, $needle, $offset = 0)
237 {
238 // ignore invalid negative offset to keep compatility
239 // with php < 5.5.35, < 5.6.21, < 7.0.6
240 return grapheme_strpos($s, $needle, $offset > 0 ? $offset : 0);
241 }
242 public static function strrpos($s, $needle, $offset = 0)
243 {
244 return grapheme_strrpos($s, $needle, $offset);
245 }
246
247 public static function stripos($s, $needle, $offset = 0)
248 {
249 if (50418 > PHP_VERSION_ID || 50500 == PHP_VERSION_ID) {
250 // Don't use grapheme_stripos because of https://bugs.php.net/61860
251 if (!preg_match('//u', $s .= '')) {
252 return false;
253 }
254 if ($offset < 0) {
255 $offset = 0;
256 }
257 if (!$needle = mb_stripos($s, $needle .= '', $offset, 'UTF-8')) {
258 return $needle;
259 }
260
261 return grapheme_strlen(iconv_substr($s, 0, $needle, 'UTF-8'));
262 }
263
264 return grapheme_stripos($s, $needle, $offset);
265 }
266
267 public static function strripos($s, $needle, $offset = 0)
268 {
269 if (50418 > PHP_VERSION_ID || 50500 == PHP_VERSION_ID) {
270 // Don't use grapheme_strripos because of https://bugs.php.net/61860
271 if (!preg_match('//u', $s .= '')) {
272 return false;
273 }
274 if ($offset < 0) {
275 $offset = 0;
276 }
277 if (!$needle = mb_strripos($s, $needle .= '', $offset, 'UTF-8')) {
278 return $needle;
279 }
280
281 return grapheme_strlen(iconv_substr($s, 0, $needle, 'UTF-8'));
282 }
283
284 return grapheme_strripos($s, $needle, $offset);
285 }
286
287 public static function stristr($s, $needle, $before_needle = false)
288 {
289 if ('' === $needle .= '') {
290 return false;
291 }
292
293 return mb_stristr($s, $needle, $before_needle, 'UTF-8');
294 }
295
296 public static function strstr($s, $needle, $before_needle = false)
297 {
298 return grapheme_strstr($s, $needle, $before_needle);
299 }
300 public static function strrchr($s, $needle, $before_needle = false)
301 {
302 return mb_strrchr($s, $needle, $before_needle, 'UTF-8');
303 }
304 public static function strrichr($s, $needle, $before_needle = false)
305 {
306 return mb_strrichr($s, $needle, $before_needle, 'UTF-8');
307 }
308
309 public static function strtolower($s)
310 {
311 return mb_strtolower($s, 'UTF-8');
312 }
313 public static function strtoupper($s)
314 {
315 return mb_strtoupper($s, 'UTF-8');
316 }
317
318 public static function wordwrap($s, $width = 75, $break = "\n", $cut = false)
319 {
320 if (false === wordwrap('-', $width, $break, $cut)) {
321 return false;
322 }
323
324 is_string($break) or $break = (string) $break;
325
326 $w = '';
327 $s = explode($break, $s);
328 $iLen = count($s);
329 $chars = array();
330
331 if (1 === $iLen && '' === $s[0]) {
332 return '';
333 }
334
335 for ($i = 0; $i < $iLen; ++$i) {
336 if ($i) {
337 $chars[] = $break;
338 $w .= '#';
339 }
340
341 $c = $s[$i];
342 unset($s[$i]);
343
344 foreach (self::str_split($c) as $c) {
345 $chars[] = $c;
346 $w .= ' ' === $c ? ' ' : '?';
347 }
348 }
349
350 $s = '';
351 $j = 0;
352 $b = $i = -1;
353 $w = wordwrap($w, $width, '#', $cut);
354
355 while (false !== $b = strpos($w, '#', $b + 1)) {
356 for (++$i; $i < $b; ++$i) {
357 $s .= $chars[$j];
358 unset($chars[$j++]);
359 }
360
361 if ($break === $chars[$j] || ' ' === $chars[$j]) {
362 unset($chars[$j++]);
363 }
364 $s .= $break;
365 }
366
367 return $s.implode('', $chars);
368 }
369
370 public static function chr($c)
371 {
372 if (0x80 > $c %= 0x200000) {
373 return chr($c);
374 }
375 if (0x800 > $c) {
376 return chr(0xC0 | $c >> 6).chr(0x80 | $c & 0x3F);
377 }
378 if (0x10000 > $c) {
379 return chr(0xE0 | $c >> 12).chr(0x80 | $c >> 6 & 0x3F).chr(0x80 | $c & 0x3F);
380 }
381
382 return chr(0xF0 | $c >> 18).chr(0x80 | $c >> 12 & 0x3F).chr(0x80 | $c >> 6 & 0x3F).chr(0x80 | $c & 0x3F);
383 }
384
385 public static function count_chars($s, $mode = 0)
386 {
387 if (1 != $mode) {
388 user_error(__METHOD__.'(): the only allowed $mode is 1', E_USER_WARNING);
389 }
390 $s = self::str_split($s);
391
392 return array_count_values($s);
393 }
394
395 public static function ltrim($s, $charlist = null)
396 {
397 $charlist = null === $charlist ? '\s' : self::rxClass($charlist);
398
399 return preg_replace("/^{$charlist}+/u", '', $s);
400 }
401
402 public static function ord($s)
403 {
404 $a = ($s = unpack('C*', substr($s, 0, 4))) ? $s[1] : 0;
405 if (0xF0 <= $a) {
406 return (($a - 0xF0) << 18) + (($s[2] - 0x80) << 12) + (($s[3] - 0x80) << 6) + $s[4] - 0x80;
407 }
408 if (0xE0 <= $a) {
409 return (($a - 0xE0) << 12) + (($s[2] - 0x80) << 6) + $s[3] - 0x80;
410 }
411 if (0xC0 <= $a) {
412 return (($a - 0xC0) << 6) + $s[2] - 0x80;
413 }
414
415 return $a;
416 }
417
418 public static function rtrim($s, $charlist = null)
419 {
420 $charlist = null === $charlist ? '\s' : self::rxClass($charlist);
421
422 return preg_replace("/{$charlist}+$/u", '', $s);
423 }
424
425 public static function trim($s, $charlist = null)
426 {
427 return self::rtrim(self::ltrim($s, $charlist), $charlist);
428 }
429
430 public static function str_ireplace($search, $replace, $subject, &$count = null)
431 {
432 $search = (array) $search;
433
434 foreach ($search as $i => $s) {
435 if ('' === $s .= '') {
436 $s = '/^(?<=.)$/';
437 } else {
438 $s = '/'.preg_quote($s, '/').'/ui';
439 }
440
441 $search[$i] = $s;
442 }
443
444 $subject = preg_replace($search, $replace, $subject, -1, $replace);
445 $count = $replace;
446
447 return $subject;
448 }
449
450 public static function str_pad($s, $len, $pad = ' ', $type = STR_PAD_RIGHT)
451 {
452 $slen = grapheme_strlen($s);
453 if ($len <= $slen) {
454 return $s;
455 }
456
457 $padlen = grapheme_strlen($pad);
458 $freelen = $len - $slen;
459 $len = $freelen % $padlen;
460
461 if (STR_PAD_RIGHT == $type) {
462 return $s.str_repeat($pad, $freelen / $padlen).($len ? grapheme_substr($pad, 0, $len) : '');
463 }
464 if (STR_PAD_LEFT == $type) {
465 return str_repeat($pad, $freelen / $padlen).($len ? grapheme_substr($pad, 0, $len) : '').$s;
466 }
467 if (STR_PAD_BOTH == $type) {
468 $freelen /= 2;
469
470 $type = ceil($freelen);
471 $len = $type % $padlen;
472 $s .= str_repeat($pad, $type / $padlen).($len ? grapheme_substr($pad, 0, $len) : '');
473
474 $type = floor($freelen);
475 $len = $type % $padlen;
476
477 return str_repeat($pad, $type / $padlen).($len ? grapheme_substr($pad, 0, $len) : '').$s;
478 }
479
480 user_error(__METHOD__.'(): Padding type has to be STR_PAD_LEFT, STR_PAD_RIGHT, or STR_PAD_BOTH', E_USER_WARNING);
481 }
482
483 public static function str_shuffle($s)
484 {
485 $s = self::str_split($s);
486 shuffle($s);
487
488 return implode('', $s);
489 }
490
491 public static function str_split($s, $len = 1)
492 {
493 if (1 > $len = (int) $len) {
494 $len = func_get_arg(1);
495
496 return str_split($s, $len);
497 }
498
499 static $hasIntl;
500 isset($hasIntl) or $hasIntl = extension_loaded('intl');
501
502 if ($hasIntl) {
503 $a = array();
504 $p = 0;
505 $l = strlen($s);
506
507 while ($p < $l) {
508 $a[] = grapheme_extract($s, 1, GRAPHEME_EXTR_COUNT, $p, $p);
509 }
510 } else {
511 preg_match_all('/'.GRAPHEME_CLUSTER_RX.'/u', $s, $a);
512 $a = $a[0];
513 }
514
515 if (1 == $len) {
516 return $a;
517 }
518
519 $s = array();
520 $p = -1;
521
522 foreach ($a as $l => $a) {
523 if ($l % $len) {
524 $s[$p] .= $a;
525 } else {
526 $s[++$p] = $a;
527 }
528 }
529
530 return $s;
531 }
532
533 public static function str_word_count($s, $format = 0, $charlist = '')
534 {
535 $charlist = self::rxClass($charlist, '\pL');
536 $s = preg_split("/({$charlist}+(?:[\p{Pd}’']{$charlist}+)*)/u", $s, -1, PREG_SPLIT_DELIM_CAPTURE);
537
538 $charlist = array();
539 $len = count($s);
540
541 if (1 == $format) {
542 for ($i = 1; $i < $len; $i += 2) {
543 $charlist[] = $s[$i];
544 }
545 } elseif (2 == $format) {
546 $offset = grapheme_strlen($s[0]);
547 for ($i = 1; $i < $len; $i += 2) {
548 $charlist[$offset] = $s[$i];
549 $offset += grapheme_strlen($s[$i]) + grapheme_strlen($s[$i + 1]);
550 }
551 } else {
552 $charlist = ($len - 1) / 2;
553 }
554
555 return $charlist;
556 }
557
558 public static function strcmp($a, $b)
559 {
560 return $a.'' === $b.'' ? 0 : strcmp(n::normalize($a, n::NFD), n::normalize($b, n::NFD));
561 }
562 public static function strnatcmp($a, $b)
563 {
564 return $a.'' === $b.'' ? 0 : strnatcmp(self::strtonatfold($a), self::strtonatfold($b));
565 }
566 public static function strcasecmp($a, $b)
567 {
568 return self::strcmp(static::strtocasefold($a), static::strtocasefold($b));
569 }
570 public static function strnatcasecmp($a, $b)
571 {
572 return self::strnatcmp(static::strtocasefold($a), static::strtocasefold($b));
573 }
574 public static function strncasecmp($a, $b, $len)
575 {
576 return self::strncmp(static::strtocasefold($a), static::strtocasefold($b), $len);
577 }
578 public static function strncmp($a, $b, $len)
579 {
580 return self::strcmp(self::substr($a, 0, $len), self::substr($b, 0, $len));
581 }
582
583 public static function strcspn($s, $charlist, $start = 0, $len = 2147483647)
584 {
585 if ('' === $charlist .= '') {
586 return;
587 }
588 if ($start || 2147483647 != $len) {
589 $s = self::substr($s, $start, $len);
590 }
591
592 return preg_match('/^(.*?)'.self::rxClass($charlist).'/us', $s, $len) ? grapheme_strlen($len[1]) : grapheme_strlen($s);
593 }
594
595 public static function strpbrk($s, $charlist)
596 {
597 if (preg_match('/'.self::rxClass($charlist).'/us', $s, $m)) {
598 return substr($s, strpos($s, $m[0]));
599 } else {
600 return false;
601 }
602 }
603
604 public static function strrev($s)
605 {
606 $s = self::str_split($s);
607
608 return implode('', array_reverse($s));
609 }
610
611 public static function strspn($s, $mask, $start = 0, $len = 2147483647)
612 {
613 if ($start || 2147483647 != $len) {
614 $s = self::substr($s, $start, $len);
615 }
616
617 return preg_match('/^'.self::rxClass($mask).'+/u', $s, $s) ? grapheme_strlen($s[0]) : 0;
618 }
619
620 public static function strtr($s, $from, $to = null)
621 {
622 if (null !== $to) {
623 $from = self::str_split($from);
624 $to = self::str_split($to);
625
626 $a = count($from);
627 $b = count($to);
628
629 if ($a > $b) {
630 $from = array_slice($from, 0, $b);
631 } elseif ($a < $b) {
632 $to = array_slice($to, 0, $a);
633 }
634
635 $from = array_combine($from, $to);
636 }
637
638 return strtr($s, $from);
639 }
640
641 public static function substr_compare($a, $b, $offset, $len = 2147483647, $i = 0)
642 {
643 $a = self::substr($a, $offset, $len);
644
645 return $i ? static::strcasecmp($a, $b) : self::strcmp($a, $b);
646 }
647
648 public static function substr_count($s, $needle, $offset = 0, $len = 2147483647)
649 {
650 return substr_count(self::substr($s, $offset, $len), $needle);
651 }
652
653 public static function substr_replace($s, $replace, $start, $len = 2147483647)
654 {
655 $s = self::str_split($s);
656 $replace = self::str_split($replace);
657 array_splice($s, $start, $len, $replace);
658
659 return implode('', $s);
660 }
661
662 public static function ucfirst($s)
663 {
664 $c = iconv_substr($s, 0, 1, 'UTF-8');
665
666 return static::ucwords($c).substr($s, strlen($c));
667 }
668
669 public static function lcfirst($s)
670 {
671 $c = iconv_substr($s, 0, 1, 'UTF-8');
672
673 return static::strtolower($c).substr($s, strlen($c));
674 }
675
676 public static function ucwords($s)
677 {
678 return preg_replace_callback(
679 "/\b(.)/u",
680 function ($matches) {
681 return mb_convert_case($matches[1], MB_CASE_TITLE, 'UTF-8');
682 },
683 $s
684 );
685 }
686
687 public static function number_format($number, $decimals = 0, $dec_point = '.', $thousands_sep = ',')
688 {
689 if (PHP_VERSION_ID < 50400) {
690 if (isset($thousands_sep[1]) || isset($dec_point[1])) {
691 return str_replace(
692 array('.', ','),
693 array($dec_point, $thousands_sep),
694 number_format($number, $decimals, '.', ',')
695 );
696 }
697 }
698
699 return number_format($number, $decimals, $dec_point, $thousands_sep);
700 }
701
702 public static function utf8_encode($s)
703 {
704 $s = utf8_encode($s);
705 if (false === strpos($s, "\xC2")) {
706 return $s;
707 } else {
708 return str_replace(self::$cp1252, self::$utf8, $s);
709 }
710 }
711
712 public static function utf8_decode($s)
713 {
714 $s = str_replace(self::$utf8, self::$cp1252, $s);
715
716 return utf8_decode($s);
717 }
718
719 public static function strwidth($s)
720 {
721 if (false !== strpos($s, "\r")) {
722 $s = str_replace("\r\n", "\n", $s);
723 $s = strtr($s, "\r", "\n");
724 }
725 $width = 0;
726
727 foreach (explode("\n", $s) as $s) {
728 $s = preg_replace('/\x1B\[[\d;]*m/', '', $s);
729 $c = substr_count($s, "\xAD") - substr_count($s, "\x08");
730 $s = preg_replace('/[\x00\x05\x07\p{Mn}\p{Me}\p{Cf}\x{1160}-\x{11FF}\x{200B}]+/u', '', $s);
731 preg_replace('/[\x{1100}-\x{115F}\x{2329}\x{232A}\x{2E80}-\x{303E}\x{3040}-\x{A4CF}\x{AC00}-\x{D7A3}\x{F900}-\x{FAFF}\x{FE10}-\x{FE19}\x{FE30}-\x{FE6F}\x{FF00}-\x{FF60}\x{FFE0}-\x{FFE6}\x{20000}-\x{2FFFD}\x{30000}-\x{3FFFD}]/u', '', $s, -1, $wide);
732
733 if ($width < $c = iconv_strlen($s, 'UTF-8') + $wide + $c) {
734 $width = $c;
735 }
736 }
737
738 return $width;
739 }
740
741 protected static function rxClass($s, $class = '')
742 {
743 $class = array($class);
744
745 foreach (self::str_split($s) as $s) {
746 if ('-' === $s) {
747 $class[0] = '-'.$class[0];
748 } elseif (!isset($s[2])) {
749 $class[0] .= preg_quote($s, '/');
750 } elseif (1 === iconv_strlen($s, 'UTF-8')) {
751 $class[0] .= $s;
752 } else {
753 $class[] = $s;
754 }
755 }
756
757 $class[0] = '['.$class[0].']';
758
759 if (1 === count($class)) {
760 return $class[0];
761 } else {
762 return '(?:'.implode('|', $class).')';
763 }
764 }
765
766 protected static function getData($file)
767 {
768 $file = __DIR__.'/Utf8/data/'.$file.'.ser';
769 if (file_exists($file)) {
770 return unserialize(file_get_contents($file));
771 } else {
772 return false;
773 }
774 }
775 }
776