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1 <?php 2 3 /* 4 * This file is part of the Symfony package. 5 * 6 * (c) Fabien Potencier <fabien@symfony.com> 7 * 8 * For the full copyright and license information, please view the LICENSE 9 * file that was distributed with this source code. 10 */ 11 12 namespace Symfony\Polyfill\Mbstring; 13 14 /** 15 * Partial mbstring implementation in PHP, iconv based, UTF-8 centric. 16 * 17 * Implemented: 18 * - mb_chr - Returns a specific character from its Unicode code point 19 * - mb_convert_encoding - Convert character encoding 20 * - mb_convert_variables - Convert character code in variable(s) 21 * - mb_decode_mimeheader - Decode string in MIME header field 22 * - mb_encode_mimeheader - Encode string for MIME header XXX NATIVE IMPLEMENTATION IS REALLY BUGGED 23 * - mb_decode_numericentity - Decode HTML numeric string reference to character 24 * - mb_encode_numericentity - Encode character to HTML numeric string reference 25 * - mb_convert_case - Perform case folding on a string 26 * - mb_detect_encoding - Detect character encoding 27 * - mb_get_info - Get internal settings of mbstring 28 * - mb_http_input - Detect HTTP input character encoding 29 * - mb_http_output - Set/Get HTTP output character encoding 30 * - mb_internal_encoding - Set/Get internal character encoding 31 * - mb_list_encodings - Returns an array of all supported encodings 32 * - mb_ord - Returns the Unicode code point of a character 33 * - mb_output_handler - Callback function converts character encoding in output buffer 34 * - mb_scrub - Replaces ill-formed byte sequences with substitute characters 35 * - mb_strlen - Get string length 36 * - mb_strpos - Find position of first occurrence of string in a string 37 * - mb_strrpos - Find position of last occurrence of a string in a string 38 * - mb_str_split - Convert a string to an array 39 * - mb_strtolower - Make a string lowercase 40 * - mb_strtoupper - Make a string uppercase 41 * - mb_substitute_character - Set/Get substitution character 42 * - mb_substr - Get part of string 43 * - mb_stripos - Finds position of first occurrence of a string within another, case insensitive 44 * - mb_stristr - Finds first occurrence of a string within another, case insensitive 45 * - mb_strrchr - Finds the last occurrence of a character in a string within another 46 * - mb_strrichr - Finds the last occurrence of a character in a string within another, case insensitive 47 * - mb_strripos - Finds position of last occurrence of a string within another, case insensitive 48 * - mb_strstr - Finds first occurrence of a string within another 49 * - mb_strwidth - Return width of string 50 * - mb_substr_count - Count the number of substring occurrences 51 * 52 * Not implemented: 53 * - mb_convert_kana - Convert "kana" one from another ("zen-kaku", "han-kaku" and more) 54 * - mb_ereg_* - Regular expression with multibyte support 55 * - mb_parse_str - Parse GET/POST/COOKIE data and set global variable 56 * - mb_preferred_mime_name - Get MIME charset string 57 * - mb_regex_encoding - Returns current encoding for multibyte regex as string 58 * - mb_regex_set_options - Set/Get the default options for mbregex functions 59 * - mb_send_mail - Send encoded mail 60 * - mb_split - Split multibyte string using regular expression 61 * - mb_strcut - Get part of string 62 * - mb_strimwidth - Get truncated string with specified width 63 * 64 * @author Nicolas Grekas <p@tchwork.com> 65 * 66 * @internal 67 */ 68 final class Mbstring 69 { 70 const MB_CASE_FOLD = PHP_INT_MAX; 71 72 private static $encodingList = array('ASCII', 'UTF-8'); 73 private static $language = 'neutral'; 74 private static $internalEncoding = 'UTF-8'; 75 private static $caseFold = array( 76 array('µ', 'ſ', "\xCD\x85", 'ς', "\xCF\x90", "\xCF\x91", "\xCF\x95", "\xCF\x96", "\xCF\xB0", "\xCF\xB1", "\xCF\xB5", "\xE1\xBA\x9B", "\xE1\xBE\xBE"), 77 array('μ', 's', 'ι', 'σ', 'β', 'θ', 'φ', 'π', 'κ', 'ρ', 'ε', "\xE1\xB9\xA1", 'ι'), 78 ); 79 80 public static function mb_convert_encoding($s, $toEncoding, $fromEncoding = null) 81 { 82 if (\is_array($fromEncoding) || false !== strpos($fromEncoding, ',')) { 83 $fromEncoding = self::mb_detect_encoding($s, $fromEncoding); 84 } else { 85 $fromEncoding = self::getEncoding($fromEncoding); 86 } 87 88 $toEncoding = self::getEncoding($toEncoding); 89 90 if ('BASE64' === $fromEncoding) { 91 $s = base64_decode($s); 92 $fromEncoding = $toEncoding; 93 } 94 95 if ('BASE64' === $toEncoding) { 96 return base64_encode($s); 97 } 98 99 if ('HTML-ENTITIES' === $toEncoding || 'HTML' === $toEncoding) { 100 if ('HTML-ENTITIES' === $fromEncoding || 'HTML' === $fromEncoding) { 101 $fromEncoding = 'Windows-1252'; 102 } 103 if ('UTF-8' !== $fromEncoding) { 104 $s = iconv($fromEncoding, 'UTF-8//IGNORE', $s); 105 } 106 107 return preg_replace_callback('/[\x80-\xFF]+/', array(__CLASS__, 'html_encoding_callback'), $s); 108 } 109 110 if ('HTML-ENTITIES' === $fromEncoding) { 111 $s = html_entity_decode($s, ENT_COMPAT, 'UTF-8'); 112 $fromEncoding = 'UTF-8'; 113 } 114 115 return iconv($fromEncoding, $toEncoding.'//IGNORE', $s); 116 } 117 118 public static function mb_convert_variables($toEncoding, $fromEncoding, &$a = null, &$b = null, &$c = null, &$d = null, &$e = null, &$f = null) 119 { 120 $vars = array(&$a, &$b, &$c, &$d, &$e, &$f); 121 122 $ok = true; 123 array_walk_recursive($vars, function (&$v) use (&$ok, $toEncoding, $fromEncoding) { 124 if (false === $v = Mbstring::mb_convert_encoding($v, $toEncoding, $fromEncoding)) { 125 $ok = false; 126 } 127 }); 128 129 return $ok ? $fromEncoding : false; 130 } 131 132 public static function mb_decode_mimeheader($s) 133 { 134 return iconv_mime_decode($s, 2, self::$internalEncoding); 135 } 136 137 public static function mb_encode_mimeheader($s, $charset = null, $transferEncoding = null, $linefeed = null, $indent = null) 138 { 139 trigger_error('mb_encode_mimeheader() is bugged. Please use iconv_mime_encode() instead', E_USER_WARNING); 140 } 141 142 public static function mb_decode_numericentity($s, $convmap, $encoding = null) 143 { 144 if (null !== $s && !\is_scalar($s) && !(\is_object($s) && \method_exists($s, '__toString'))) { 145 trigger_error('mb_decode_numericentity() expects parameter 1 to be string, '.\gettype($s).' given', E_USER_WARNING); 146 147 return null; 148 } 149 150 if (!\is_array($convmap) || !$convmap) { 151 return false; 152 } 153 154 if (null !== $encoding && !\is_scalar($encoding)) { 155 trigger_error('mb_decode_numericentity() expects parameter 3 to be string, '.\gettype($s).' given', E_USER_WARNING); 156 157 return ''; // Instead of null (cf. mb_encode_numericentity). 158 } 159 160 $s = (string) $s; 161 if ('' === $s) { 162 return ''; 163 } 164 165 $encoding = self::getEncoding($encoding); 166 167 if ('UTF-8' === $encoding) { 168 $encoding = null; 169 if (!preg_match('//u', $s)) { 170 $s = @iconv('UTF-8', 'UTF-8//IGNORE', $s); 171 } 172 } else { 173 $s = iconv($encoding, 'UTF-8//IGNORE', $s); 174 } 175 176 $cnt = floor(\count($convmap) / 4) * 4; 177 178 for ($i = 0; $i < $cnt; $i += 4) { 179 // collector_decode_htmlnumericentity ignores $convmap[$i + 3] 180 $convmap[$i] += $convmap[$i + 2]; 181 $convmap[$i + 1] += $convmap[$i + 2]; 182 } 183 184 $s = preg_replace_callback('/&#(?:0*([0-9]+)|x0*([0-9a-fA-F]+))(?!&);?/', function (array $m) use ($cnt, $convmap) { 185 $c = isset($m[2]) ? (int) hexdec($m[2]) : $m[1]; 186 for ($i = 0; $i < $cnt; $i += 4) { 187 if ($c >= $convmap[$i] && $c <= $convmap[$i + 1]) { 188 return Mbstring::mb_chr($c - $convmap[$i + 2]); 189 } 190 } 191 192 return $m[0]; 193 }, $s); 194 195 if (null === $encoding) { 196 return $s; 197 } 198 199 return iconv('UTF-8', $encoding.'//IGNORE', $s); 200 } 201 202 public static function mb_encode_numericentity($s, $convmap, $encoding = null, $is_hex = false) 203 { 204 if (null !== $s && !\is_scalar($s) && !(\is_object($s) && \method_exists($s, '__toString'))) { 205 trigger_error('mb_encode_numericentity() expects parameter 1 to be string, '.\gettype($s).' given', E_USER_WARNING); 206 207 return null; 208 } 209 210 if (!\is_array($convmap) || !$convmap) { 211 return false; 212 } 213 214 if (null !== $encoding && !\is_scalar($encoding)) { 215 trigger_error('mb_encode_numericentity() expects parameter 3 to be string, '.\gettype($s).' given', E_USER_WARNING); 216 217 return null; // Instead of '' (cf. mb_decode_numericentity). 218 } 219 220 if (null !== $is_hex && !\is_scalar($is_hex)) { 221 trigger_error('mb_encode_numericentity() expects parameter 4 to be boolean, '.\gettype($s).' given', E_USER_WARNING); 222 223 return null; 224 } 225 226 $s = (string) $s; 227 if ('' === $s) { 228 return ''; 229 } 230 231 $encoding = self::getEncoding($encoding); 232 233 if ('UTF-8' === $encoding) { 234 $encoding = null; 235 if (!preg_match('//u', $s)) { 236 $s = @iconv('UTF-8', 'UTF-8//IGNORE', $s); 237 } 238 } else { 239 $s = iconv($encoding, 'UTF-8//IGNORE', $s); 240 } 241 242 static $ulenMask = array("\xC0" => 2, "\xD0" => 2, "\xE0" => 3, "\xF0" => 4); 243 244 $cnt = floor(\count($convmap) / 4) * 4; 245 $i = 0; 246 $len = \strlen($s); 247 $result = ''; 248 249 while ($i < $len) { 250 $ulen = $s[$i] < "\x80" ? 1 : $ulenMask[$s[$i] & "\xF0"]; 251 $uchr = substr($s, $i, $ulen); 252 $i += $ulen; 253 $c = self::mb_ord($uchr); 254 255 for ($j = 0; $j < $cnt; $j += 4) { 256 if ($c >= $convmap[$j] && $c <= $convmap[$j + 1]) { 257 $cOffset = ($c + $convmap[$j + 2]) & $convmap[$j + 3]; 258 $result .= $is_hex ? sprintf('&#x%X;', $cOffset) : '&#'.$cOffset.';'; 259 continue 2; 260 } 261 } 262 $result .= $uchr; 263 } 264 265 if (null === $encoding) { 266 return $result; 267 } 268 269 return iconv('UTF-8', $encoding.'//IGNORE', $result); 270 } 271 272 public static function mb_convert_case($s, $mode, $encoding = null) 273 { 274 $s = (string) $s; 275 if ('' === $s) { 276 return ''; 277 } 278 279 $encoding = self::getEncoding($encoding); 280 281 if ('UTF-8' === $encoding) { 282 $encoding = null; 283 if (!preg_match('//u', $s)) { 284 $s = @iconv('UTF-8', 'UTF-8//IGNORE', $s); 285 } 286 } else { 287 $s = iconv($encoding, 'UTF-8//IGNORE', $s); 288 } 289 290 if (MB_CASE_TITLE == $mode) { 291 static $titleRegexp = null; 292 if (null === $titleRegexp) { 293 $titleRegexp = self::getData('titleCaseRegexp'); 294 } 295 $s = preg_replace_callback($titleRegexp, array(__CLASS__, 'title_case'), $s); 296 } else { 297 if (MB_CASE_UPPER == $mode) { 298 static $upper = null; 299 if (null === $upper) { 300 $upper = self::getData('upperCase'); 301 } 302 $map = $upper; 303 } else { 304 if (self::MB_CASE_FOLD === $mode) { 305 $s = str_replace(self::$caseFold[0], self::$caseFold[1], $s); 306 } 307 308 static $lower = null; 309 if (null === $lower) { 310 $lower = self::getData('lowerCase'); 311 } 312 $map = $lower; 313 } 314 315 static $ulenMask = array("\xC0" => 2, "\xD0" => 2, "\xE0" => 3, "\xF0" => 4); 316 317 $i = 0; 318 $len = \strlen($s); 319 320 while ($i < $len) { 321 $ulen = $s[$i] < "\x80" ? 1 : $ulenMask[$s[$i] & "\xF0"]; 322 $uchr = substr($s, $i, $ulen); 323 $i += $ulen; 324 325 if (isset($map[$uchr])) { 326 $uchr = $map[$uchr]; 327 $nlen = \strlen($uchr); 328 329 if ($nlen == $ulen) { 330 $nlen = $i; 331 do { 332 $s[--$nlen] = $uchr[--$ulen]; 333 } while ($ulen); 334 } else { 335 $s = substr_replace($s, $uchr, $i - $ulen, $ulen); 336 $len += $nlen - $ulen; 337 $i += $nlen - $ulen; 338 } 339 } 340 } 341 } 342 343 if (null === $encoding) { 344 return $s; 345 } 346 347 return iconv('UTF-8', $encoding.'//IGNORE', $s); 348 } 349 350 public static function mb_internal_encoding($encoding = null) 351 { 352 if (null === $encoding) { 353 return self::$internalEncoding; 354 } 355 356 $encoding = self::getEncoding($encoding); 357 358 if ('UTF-8' === $encoding || false !== @iconv($encoding, $encoding, ' ')) { 359 self::$internalEncoding = $encoding; 360 361 return true; 362 } 363 364 return false; 365 } 366 367 public static function mb_language($lang = null) 368 { 369 if (null === $lang) { 370 return self::$language; 371 } 372 373 switch ($lang = strtolower($lang)) { 374 case 'uni': 375 case 'neutral': 376 self::$language = $lang; 377 378 return true; 379 } 380 381 return false; 382 } 383 384 public static function mb_list_encodings() 385 { 386 return array('UTF-8'); 387 } 388 389 public static function mb_encoding_aliases($encoding) 390 { 391 switch (strtoupper($encoding)) { 392 case 'UTF8': 393 case 'UTF-8': 394 return array('utf8'); 395 } 396 397 return false; 398 } 399 400 public static function mb_check_encoding($var = null, $encoding = null) 401 { 402 if (null === $encoding) { 403 if (null === $var) { 404 return false; 405 } 406 $encoding = self::$internalEncoding; 407 } 408 409 return self::mb_detect_encoding($var, array($encoding)) || false !== @iconv($encoding, $encoding, $var); 410 } 411 412 public static function mb_detect_encoding($str, $encodingList = null, $strict = false) 413 { 414 if (null === $encodingList) { 415 $encodingList = self::$encodingList; 416 } else { 417 if (!\is_array($encodingList)) { 418 $encodingList = array_map('trim', explode(',', $encodingList)); 419 } 420 $encodingList = array_map('strtoupper', $encodingList); 421 } 422 423 foreach ($encodingList as $enc) { 424 switch ($enc) { 425 case 'ASCII': 426 if (!preg_match('/[\x80-\xFF]/', $str)) { 427 return $enc; 428 } 429 break; 430 431 case 'UTF8': 432 case 'UTF-8': 433 if (preg_match('//u', $str)) { 434 return 'UTF-8'; 435 } 436 break; 437 438 default: 439 if (0 === strncmp($enc, 'ISO-8859-', 9)) { 440 return $enc; 441 } 442 } 443 } 444 445 return false; 446 } 447 448 public static function mb_detect_order($encodingList = null) 449 { 450 if (null === $encodingList) { 451 return self::$encodingList; 452 } 453 454 if (!\is_array($encodingList)) { 455 $encodingList = array_map('trim', explode(',', $encodingList)); 456 } 457 $encodingList = array_map('strtoupper', $encodingList); 458 459 foreach ($encodingList as $enc) { 460 switch ($enc) { 461 default: 462 if (strncmp($enc, 'ISO-8859-', 9)) { 463 return false; 464 } 465 // no break 466 case 'ASCII': 467 case 'UTF8': 468 case 'UTF-8': 469 } 470 } 471 472 self::$encodingList = $encodingList; 473 474 return true; 475 } 476 477 public static function mb_strlen($s, $encoding = null) 478 { 479 $encoding = self::getEncoding($encoding); 480 if ('CP850' === $encoding || 'ASCII' === $encoding) { 481 return \strlen($s); 482 } 483 484 return @iconv_strlen($s, $encoding); 485 } 486 487 public static function mb_strpos($haystack, $needle, $offset = 0, $encoding = null) 488 { 489 $encoding = self::getEncoding($encoding); 490 if ('CP850' === $encoding || 'ASCII' === $encoding) { 491 return strpos($haystack, $needle, $offset); 492 } 493 494 $needle = (string) $needle; 495 if ('' === $needle) { 496 trigger_error(__METHOD__.': Empty delimiter', E_USER_WARNING); 497 498 return false; 499 } 500 501 return iconv_strpos($haystack, $needle, $offset, $encoding); 502 } 503 504 public static function mb_strrpos($haystack, $needle, $offset = 0, $encoding = null) 505 { 506 $encoding = self::getEncoding($encoding); 507 if ('CP850' === $encoding || 'ASCII' === $encoding) { 508 return strrpos($haystack, $needle, $offset); 509 } 510 511 if ($offset != (int) $offset) { 512 $offset = 0; 513 } elseif ($offset = (int) $offset) { 514 if ($offset < 0) { 515 if (0 > $offset += self::mb_strlen($needle)) { 516 $haystack = self::mb_substr($haystack, 0, $offset, $encoding); 517 } 518 $offset = 0; 519 } else { 520 $haystack = self::mb_substr($haystack, $offset, 2147483647, $encoding); 521 } 522 } 523 524 $pos = iconv_strrpos($haystack, $needle, $encoding); 525 526 return false !== $pos ? $offset + $pos : false; 527 } 528 529 public static function mb_str_split($string, $split_length = 1, $encoding = null) 530 { 531 if (null !== $string && !\is_scalar($string) && !(\is_object($string) && \method_exists($string, '__toString'))) { 532 trigger_error('mb_str_split() expects parameter 1 to be string, '.\gettype($string).' given', E_USER_WARNING); 533 534 return null; 535 } 536 537 if (1 > $split_length = (int) $split_length) { 538 trigger_error('The length of each segment must be greater than zero', E_USER_WARNING); 539 540 return false; 541 } 542 543 if (null === $encoding) { 544 $encoding = mb_internal_encoding(); 545 } 546 547 if ('UTF-8' === $encoding = self::getEncoding($encoding)) { 548 $rx = '/('; 549 while (65535 < $split_length) { 550 $rx .= '.{65535}'; 551 $split_length -= 65535; 552 } 553 $rx .= '.{'.$split_length.'})/us'; 554 555 return preg_split($rx, $string, null, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY); 556 } 557 558 $result = array(); 559 $length = mb_strlen($string, $encoding); 560 561 for ($i = 0; $i < $length; $i += $split_length) { 562 $result[] = mb_substr($string, $i, $split_length, $encoding); 563 } 564 565 return $result; 566 } 567 568 public static function mb_strtolower($s, $encoding = null) 569 { 570 return self::mb_convert_case($s, MB_CASE_LOWER, $encoding); 571 } 572 573 public static function mb_strtoupper($s, $encoding = null) 574 { 575 return self::mb_convert_case($s, MB_CASE_UPPER, $encoding); 576 } 577 578 public static function mb_substitute_character($c = null) 579 { 580 if (0 === strcasecmp($c, 'none')) { 581 return true; 582 } 583 584 return null !== $c ? false : 'none'; 585 } 586 587 public static function mb_substr($s, $start, $length = null, $encoding = null) 588 { 589 $encoding = self::getEncoding($encoding); 590 if ('CP850' === $encoding || 'ASCII' === $encoding) { 591 return (string) substr($s, $start, null === $length ? 2147483647 : $length); 592 } 593 594 if ($start < 0) { 595 $start = iconv_strlen($s, $encoding) + $start; 596 if ($start < 0) { 597 $start = 0; 598 } 599 } 600 601 if (null === $length) { 602 $length = 2147483647; 603 } elseif ($length < 0) { 604 $length = iconv_strlen($s, $encoding) + $length - $start; 605 if ($length < 0) { 606 return ''; 607 } 608 } 609 610 return (string) iconv_substr($s, $start, $length, $encoding); 611 } 612 613 public static function mb_stripos($haystack, $needle, $offset = 0, $encoding = null) 614 { 615 $haystack = self::mb_convert_case($haystack, self::MB_CASE_FOLD, $encoding); 616 $needle = self::mb_convert_case($needle, self::MB_CASE_FOLD, $encoding); 617 618 return self::mb_strpos($haystack, $needle, $offset, $encoding); 619 } 620 621 public static function mb_stristr($haystack, $needle, $part = false, $encoding = null) 622 { 623 $pos = self::mb_stripos($haystack, $needle, 0, $encoding); 624 625 return self::getSubpart($pos, $part, $haystack, $encoding); 626 } 627 628 public static function mb_strrchr($haystack, $needle, $part = false, $encoding = null) 629 { 630 $encoding = self::getEncoding($encoding); 631 if ('CP850' === $encoding || 'ASCII' === $encoding) { 632 return strrchr($haystack, $needle, $part); 633 } 634 $needle = self::mb_substr($needle, 0, 1, $encoding); 635 $pos = iconv_strrpos($haystack, $needle, $encoding); 636 637 return self::getSubpart($pos, $part, $haystack, $encoding); 638 } 639 640 public static function mb_strrichr($haystack, $needle, $part = false, $encoding = null) 641 { 642 $needle = self::mb_substr($needle, 0, 1, $encoding); 643 $pos = self::mb_strripos($haystack, $needle, $encoding); 644 645 return self::getSubpart($pos, $part, $haystack, $encoding); 646 } 647 648 public static function mb_strripos($haystack, $needle, $offset = 0, $encoding = null) 649 { 650 $haystack = self::mb_convert_case($haystack, self::MB_CASE_FOLD, $encoding); 651 $needle = self::mb_convert_case($needle, self::MB_CASE_FOLD, $encoding); 652 653 return self::mb_strrpos($haystack, $needle, $offset, $encoding); 654 } 655 656 public static function mb_strstr($haystack, $needle, $part = false, $encoding = null) 657 { 658 $pos = strpos($haystack, $needle); 659 if (false === $pos) { 660 return false; 661 } 662 if ($part) { 663 return substr($haystack, 0, $pos); 664 } 665 666 return substr($haystack, $pos); 667 } 668 669 public static function mb_get_info($type = 'all') 670 { 671 $info = array( 672 'internal_encoding' => self::$internalEncoding, 673 'http_output' => 'pass', 674 'http_output_conv_mimetypes' => '^(text/|application/xhtml\+xml)', 675 'func_overload' => 0, 676 'func_overload_list' => 'no overload', 677 'mail_charset' => 'UTF-8', 678 'mail_header_encoding' => 'BASE64', 679 'mail_body_encoding' => 'BASE64', 680 'illegal_chars' => 0, 681 'encoding_translation' => 'Off', 682 'language' => self::$language, 683 'detect_order' => self::$encodingList, 684 'substitute_character' => 'none', 685 'strict_detection' => 'Off', 686 ); 687 688 if ('all' === $type) { 689 return $info; 690 } 691 if (isset($info[$type])) { 692 return $info[$type]; 693 } 694 695 return false; 696 } 697 698 public static function mb_http_input($type = '') 699 { 700 return false; 701 } 702 703 public static function mb_http_output($encoding = null) 704 { 705 return null !== $encoding ? 'pass' === $encoding : 'pass'; 706 } 707 708 public static function mb_strwidth($s, $encoding = null) 709 { 710 $encoding = self::getEncoding($encoding); 711 712 if ('UTF-8' !== $encoding) { 713 $s = iconv($encoding, 'UTF-8//IGNORE', $s); 714 } 715 716 $s = 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, $wide); 717 718 return ($wide << 1) + iconv_strlen($s, 'UTF-8'); 719 } 720 721 public static function mb_substr_count($haystack, $needle, $encoding = null) 722 { 723 return substr_count($haystack, $needle); 724 } 725 726 public static function mb_output_handler($contents, $status) 727 { 728 return $contents; 729 } 730 731 public static function mb_chr($code, $encoding = null) 732 { 733 if (0x80 > $code %= 0x200000) { 734 $s = \chr($code); 735 } elseif (0x800 > $code) { 736 $s = \chr(0xC0 | $code >> 6).\chr(0x80 | $code & 0x3F); 737 } elseif (0x10000 > $code) { 738 $s = \chr(0xE0 | $code >> 12).\chr(0x80 | $code >> 6 & 0x3F).\chr(0x80 | $code & 0x3F); 739 } else { 740 $s = \chr(0xF0 | $code >> 18).\chr(0x80 | $code >> 12 & 0x3F).\chr(0x80 | $code >> 6 & 0x3F).\chr(0x80 | $code & 0x3F); 741 } 742 743 if ('UTF-8' !== $encoding = self::getEncoding($encoding)) { 744 $s = mb_convert_encoding($s, $encoding, 'UTF-8'); 745 } 746 747 return $s; 748 } 749 750 public static function mb_ord($s, $encoding = null) 751 { 752 if ('UTF-8' !== $encoding = self::getEncoding($encoding)) { 753 $s = mb_convert_encoding($s, 'UTF-8', $encoding); 754 } 755 756 if (1 === \strlen($s)) { 757 return \ord($s); 758 } 759 760 $code = ($s = unpack('C*', substr($s, 0, 4))) ? $s[1] : 0; 761 if (0xF0 <= $code) { 762 return (($code - 0xF0) << 18) + (($s[2] - 0x80) << 12) + (($s[3] - 0x80) << 6) + $s[4] - 0x80; 763 } 764 if (0xE0 <= $code) { 765 return (($code - 0xE0) << 12) + (($s[2] - 0x80) << 6) + $s[3] - 0x80; 766 } 767 if (0xC0 <= $code) { 768 return (($code - 0xC0) << 6) + $s[2] - 0x80; 769 } 770 771 return $code; 772 } 773 774 private static function getSubpart($pos, $part, $haystack, $encoding) 775 { 776 if (false === $pos) { 777 return false; 778 } 779 if ($part) { 780 return self::mb_substr($haystack, 0, $pos, $encoding); 781 } 782 783 return self::mb_substr($haystack, $pos, null, $encoding); 784 } 785 786 private static function html_encoding_callback(array $m) 787 { 788 $i = 1; 789 $entities = ''; 790 $m = unpack('C*', htmlentities($m[0], ENT_COMPAT, 'UTF-8')); 791 792 while (isset($m[$i])) { 793 if (0x80 > $m[$i]) { 794 $entities .= \chr($m[$i++]); 795 continue; 796 } 797 if (0xF0 <= $m[$i]) { 798 $c = (($m[$i++] - 0xF0) << 18) + (($m[$i++] - 0x80) << 12) + (($m[$i++] - 0x80) << 6) + $m[$i++] - 0x80; 799 } elseif (0xE0 <= $m[$i]) { 800 $c = (($m[$i++] - 0xE0) << 12) + (($m[$i++] - 0x80) << 6) + $m[$i++] - 0x80; 801 } else { 802 $c = (($m[$i++] - 0xC0) << 6) + $m[$i++] - 0x80; 803 } 804 805 $entities .= '&#'.$c.';'; 806 } 807 808 return $entities; 809 } 810 811 private static function title_case(array $s) 812 { 813 return self::mb_convert_case($s[1], MB_CASE_UPPER, 'UTF-8').self::mb_convert_case($s[2], MB_CASE_LOWER, 'UTF-8'); 814 } 815 816 private static function getData($file) 817 { 818 if (file_exists($file = __DIR__.'/Resources/unidata/'.$file.'.php')) { 819 return require $file; 820 } 821 822 return false; 823 } 824 825 private static function getEncoding($encoding) 826 { 827 if (null === $encoding) { 828 return self::$internalEncoding; 829 } 830 831 if ('UTF-8' === $encoding) { 832 return 'UTF-8'; 833 } 834 835 $encoding = strtoupper($encoding); 836 837 if ('8BIT' === $encoding || 'BINARY' === $encoding) { 838 return 'CP850'; 839 } 840 841 if ('UTF8' === $encoding) { 842 return 'UTF-8'; 843 } 844 845 return $encoding; 846 } 847 }
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| Generated: Wed Nov 11 20:33:01 2020 | Cross-referenced by PHPXref 0.7.1 |