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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 public const MB_CASE_FOLD = \PHP_INT_MAX; 71 72 private const SIMPLE_CASE_FOLD = [ 73 ['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"], 74 ['μ', 's', 'ι', 'σ', 'β', 'θ', 'φ', 'π', 'κ', 'ρ', 'ε', "\xE1\xB9\xA1", 'ι'], 75 ]; 76 77 private static $encodingList = ['ASCII', 'UTF-8']; 78 private static $language = 'neutral'; 79 private static $internalEncoding = 'UTF-8'; 80 81 public static function mb_convert_encoding($s, $toEncoding, $fromEncoding = null) 82 { 83 if (\is_array($fromEncoding) || (null !== $fromEncoding && false !== strpos($fromEncoding, ','))) { 84 $fromEncoding = self::mb_detect_encoding($s, $fromEncoding); 85 } else { 86 $fromEncoding = self::getEncoding($fromEncoding); 87 } 88 89 $toEncoding = self::getEncoding($toEncoding); 90 91 if ('BASE64' === $fromEncoding) { 92 $s = base64_decode($s); 93 $fromEncoding = $toEncoding; 94 } 95 96 if ('BASE64' === $toEncoding) { 97 return base64_encode($s); 98 } 99 100 if ('HTML-ENTITIES' === $toEncoding || 'HTML' === $toEncoding) { 101 if ('HTML-ENTITIES' === $fromEncoding || 'HTML' === $fromEncoding) { 102 $fromEncoding = 'Windows-1252'; 103 } 104 if ('UTF-8' !== $fromEncoding) { 105 $s = iconv($fromEncoding, 'UTF-8//IGNORE', $s); 106 } 107 108 return preg_replace_callback('/[\x80-\xFF]+/', [__CLASS__, 'html_encoding_callback'], $s); 109 } 110 111 if ('HTML-ENTITIES' === $fromEncoding) { 112 $s = html_entity_decode($s, \ENT_COMPAT, 'UTF-8'); 113 $fromEncoding = 'UTF-8'; 114 } 115 116 return iconv($fromEncoding, $toEncoding.'//IGNORE', $s); 117 } 118 119 public static function mb_convert_variables($toEncoding, $fromEncoding, &...$vars) 120 { 121 $ok = true; 122 array_walk_recursive($vars, function (&$v) use (&$ok, $toEncoding, $fromEncoding) { 123 if (false === $v = self::mb_convert_encoding($v, $toEncoding, $fromEncoding)) { 124 $ok = false; 125 } 126 }); 127 128 return $ok ? $fromEncoding : false; 129 } 130 131 public static function mb_decode_mimeheader($s) 132 { 133 return iconv_mime_decode($s, 2, self::$internalEncoding); 134 } 135 136 public static function mb_encode_mimeheader($s, $charset = null, $transferEncoding = null, $linefeed = null, $indent = null) 137 { 138 trigger_error('mb_encode_mimeheader() is bugged. Please use iconv_mime_encode() instead', \E_USER_WARNING); 139 } 140 141 public static function mb_decode_numericentity($s, $convmap, $encoding = null) 142 { 143 if (null !== $s && !\is_scalar($s) && !(\is_object($s) && method_exists($s, '__toString'))) { 144 trigger_error('mb_decode_numericentity() expects parameter 1 to be string, '.\gettype($s).' given', \E_USER_WARNING); 145 146 return null; 147 } 148 149 if (!\is_array($convmap) || (80000 > \PHP_VERSION_ID && !$convmap)) { 150 return false; 151 } 152 153 if (null !== $encoding && !\is_scalar($encoding)) { 154 trigger_error('mb_decode_numericentity() expects parameter 3 to be string, '.\gettype($s).' given', \E_USER_WARNING); 155 156 return ''; // Instead of null (cf. mb_encode_numericentity). 157 } 158 159 $s = (string) $s; 160 if ('' === $s) { 161 return ''; 162 } 163 164 $encoding = self::getEncoding($encoding); 165 166 if ('UTF-8' === $encoding) { 167 $encoding = null; 168 if (!preg_match('//u', $s)) { 169 $s = @iconv('UTF-8', 'UTF-8//IGNORE', $s); 170 } 171 } else { 172 $s = iconv($encoding, 'UTF-8//IGNORE', $s); 173 } 174 175 $cnt = floor(\count($convmap) / 4) * 4; 176 177 for ($i = 0; $i < $cnt; $i += 4) { 178 // collector_decode_htmlnumericentity ignores $convmap[$i + 3] 179 $convmap[$i] += $convmap[$i + 2]; 180 $convmap[$i + 1] += $convmap[$i + 2]; 181 } 182 183 $s = preg_replace_callback('/&#(?:0*([0-9]+)|x0*([0-9a-fA-F]+))(?!&);?/', function (array $m) use ($cnt, $convmap) { 184 $c = isset($m[2]) ? (int) hexdec($m[2]) : $m[1]; 185 for ($i = 0; $i < $cnt; $i += 4) { 186 if ($c >= $convmap[$i] && $c <= $convmap[$i + 1]) { 187 return self::mb_chr($c - $convmap[$i + 2]); 188 } 189 } 190 191 return $m[0]; 192 }, $s); 193 194 if (null === $encoding) { 195 return $s; 196 } 197 198 return iconv('UTF-8', $encoding.'//IGNORE', $s); 199 } 200 201 public static function mb_encode_numericentity($s, $convmap, $encoding = null, $is_hex = false) 202 { 203 if (null !== $s && !\is_scalar($s) && !(\is_object($s) && method_exists($s, '__toString'))) { 204 trigger_error('mb_encode_numericentity() expects parameter 1 to be string, '.\gettype($s).' given', \E_USER_WARNING); 205 206 return null; 207 } 208 209 if (!\is_array($convmap) || (80000 > \PHP_VERSION_ID && !$convmap)) { 210 return false; 211 } 212 213 if (null !== $encoding && !\is_scalar($encoding)) { 214 trigger_error('mb_encode_numericentity() expects parameter 3 to be string, '.\gettype($s).' given', \E_USER_WARNING); 215 216 return null; // Instead of '' (cf. mb_decode_numericentity). 217 } 218 219 if (null !== $is_hex && !\is_scalar($is_hex)) { 220 trigger_error('mb_encode_numericentity() expects parameter 4 to be boolean, '.\gettype($s).' given', \E_USER_WARNING); 221 222 return null; 223 } 224 225 $s = (string) $s; 226 if ('' === $s) { 227 return ''; 228 } 229 230 $encoding = self::getEncoding($encoding); 231 232 if ('UTF-8' === $encoding) { 233 $encoding = null; 234 if (!preg_match('//u', $s)) { 235 $s = @iconv('UTF-8', 'UTF-8//IGNORE', $s); 236 } 237 } else { 238 $s = iconv($encoding, 'UTF-8//IGNORE', $s); 239 } 240 241 static $ulenMask = ["\xC0" => 2, "\xD0" => 2, "\xE0" => 3, "\xF0" => 4]; 242 243 $cnt = floor(\count($convmap) / 4) * 4; 244 $i = 0; 245 $len = \strlen($s); 246 $result = ''; 247 248 while ($i < $len) { 249 $ulen = $s[$i] < "\x80" ? 1 : $ulenMask[$s[$i] & "\xF0"]; 250 $uchr = substr($s, $i, $ulen); 251 $i += $ulen; 252 $c = self::mb_ord($uchr); 253 254 for ($j = 0; $j < $cnt; $j += 4) { 255 if ($c >= $convmap[$j] && $c <= $convmap[$j + 1]) { 256 $cOffset = ($c + $convmap[$j + 2]) & $convmap[$j + 3]; 257 $result .= $is_hex ? sprintf('&#x%X;', $cOffset) : '&#'.$cOffset.';'; 258 continue 2; 259 } 260 } 261 $result .= $uchr; 262 } 263 264 if (null === $encoding) { 265 return $result; 266 } 267 268 return iconv('UTF-8', $encoding.'//IGNORE', $result); 269 } 270 271 public static function mb_convert_case($s, $mode, $encoding = null) 272 { 273 $s = (string) $s; 274 if ('' === $s) { 275 return ''; 276 } 277 278 $encoding = self::getEncoding($encoding); 279 280 if ('UTF-8' === $encoding) { 281 $encoding = null; 282 if (!preg_match('//u', $s)) { 283 $s = @iconv('UTF-8', 'UTF-8//IGNORE', $s); 284 } 285 } else { 286 $s = iconv($encoding, 'UTF-8//IGNORE', $s); 287 } 288 289 if (\MB_CASE_TITLE == $mode) { 290 static $titleRegexp = null; 291 if (null === $titleRegexp) { 292 $titleRegexp = self::getData('titleCaseRegexp'); 293 } 294 $s = preg_replace_callback($titleRegexp, [__CLASS__, 'title_case'], $s); 295 } else { 296 if (\MB_CASE_UPPER == $mode) { 297 static $upper = null; 298 if (null === $upper) { 299 $upper = self::getData('upperCase'); 300 } 301 $map = $upper; 302 } else { 303 if (self::MB_CASE_FOLD === $mode) { 304 static $caseFolding = null; 305 if (null === $caseFolding) { 306 $caseFolding = self::getData('caseFolding'); 307 } 308 $s = strtr($s, $caseFolding); 309 } 310 311 static $lower = null; 312 if (null === $lower) { 313 $lower = self::getData('lowerCase'); 314 } 315 $map = $lower; 316 } 317 318 static $ulenMask = ["\xC0" => 2, "\xD0" => 2, "\xE0" => 3, "\xF0" => 4]; 319 320 $i = 0; 321 $len = \strlen($s); 322 323 while ($i < $len) { 324 $ulen = $s[$i] < "\x80" ? 1 : $ulenMask[$s[$i] & "\xF0"]; 325 $uchr = substr($s, $i, $ulen); 326 $i += $ulen; 327 328 if (isset($map[$uchr])) { 329 $uchr = $map[$uchr]; 330 $nlen = \strlen($uchr); 331 332 if ($nlen == $ulen) { 333 $nlen = $i; 334 do { 335 $s[--$nlen] = $uchr[--$ulen]; 336 } while ($ulen); 337 } else { 338 $s = substr_replace($s, $uchr, $i - $ulen, $ulen); 339 $len += $nlen - $ulen; 340 $i += $nlen - $ulen; 341 } 342 } 343 } 344 } 345 346 if (null === $encoding) { 347 return $s; 348 } 349 350 return iconv('UTF-8', $encoding.'//IGNORE', $s); 351 } 352 353 public static function mb_internal_encoding($encoding = null) 354 { 355 if (null === $encoding) { 356 return self::$internalEncoding; 357 } 358 359 $normalizedEncoding = self::getEncoding($encoding); 360 361 if ('UTF-8' === $normalizedEncoding || false !== @iconv($normalizedEncoding, $normalizedEncoding, ' ')) { 362 self::$internalEncoding = $normalizedEncoding; 363 364 return true; 365 } 366 367 if (80000 > \PHP_VERSION_ID) { 368 return false; 369 } 370 371 throw new \ValueError(sprintf('Argument #1 ($encoding) must be a valid encoding, "%s" given', $encoding)); 372 } 373 374 public static function mb_language($lang = null) 375 { 376 if (null === $lang) { 377 return self::$language; 378 } 379 380 switch ($normalizedLang = strtolower($lang)) { 381 case 'uni': 382 case 'neutral': 383 self::$language = $normalizedLang; 384 385 return true; 386 } 387 388 if (80000 > \PHP_VERSION_ID) { 389 return false; 390 } 391 392 throw new \ValueError(sprintf('Argument #1 ($language) must be a valid language, "%s" given', $lang)); 393 } 394 395 public static function mb_list_encodings() 396 { 397 return ['UTF-8']; 398 } 399 400 public static function mb_encoding_aliases($encoding) 401 { 402 switch (strtoupper($encoding)) { 403 case 'UTF8': 404 case 'UTF-8': 405 return ['utf8']; 406 } 407 408 return false; 409 } 410 411 public static function mb_check_encoding($var = null, $encoding = null) 412 { 413 if (PHP_VERSION_ID < 70200 && \is_array($var)) { 414 trigger_error('mb_check_encoding() expects parameter 1 to be string, array given', \E_USER_WARNING); 415 416 return null; 417 } 418 419 if (null === $encoding) { 420 if (null === $var) { 421 return false; 422 } 423 $encoding = self::$internalEncoding; 424 } 425 426 if (!\is_array($var)) { 427 return self::mb_detect_encoding($var, [$encoding]) || false !== @iconv($encoding, $encoding, $var); 428 } 429 430 foreach ($var as $key => $value) { 431 if (!self::mb_check_encoding($key, $encoding)) { 432 return false; 433 } 434 if (!self::mb_check_encoding($value, $encoding)) { 435 return false; 436 } 437 } 438 439 return true; 440 441 } 442 443 public static function mb_detect_encoding($str, $encodingList = null, $strict = false) 444 { 445 if (null === $encodingList) { 446 $encodingList = self::$encodingList; 447 } else { 448 if (!\is_array($encodingList)) { 449 $encodingList = array_map('trim', explode(',', $encodingList)); 450 } 451 $encodingList = array_map('strtoupper', $encodingList); 452 } 453 454 foreach ($encodingList as $enc) { 455 switch ($enc) { 456 case 'ASCII': 457 if (!preg_match('/[\x80-\xFF]/', $str)) { 458 return $enc; 459 } 460 break; 461 462 case 'UTF8': 463 case 'UTF-8': 464 if (preg_match('//u', $str)) { 465 return 'UTF-8'; 466 } 467 break; 468 469 default: 470 if (0 === strncmp($enc, 'ISO-8859-', 9)) { 471 return $enc; 472 } 473 } 474 } 475 476 return false; 477 } 478 479 public static function mb_detect_order($encodingList = null) 480 { 481 if (null === $encodingList) { 482 return self::$encodingList; 483 } 484 485 if (!\is_array($encodingList)) { 486 $encodingList = array_map('trim', explode(',', $encodingList)); 487 } 488 $encodingList = array_map('strtoupper', $encodingList); 489 490 foreach ($encodingList as $enc) { 491 switch ($enc) { 492 default: 493 if (strncmp($enc, 'ISO-8859-', 9)) { 494 return false; 495 } 496 // no break 497 case 'ASCII': 498 case 'UTF8': 499 case 'UTF-8': 500 } 501 } 502 503 self::$encodingList = $encodingList; 504 505 return true; 506 } 507 508 public static function mb_strlen($s, $encoding = null) 509 { 510 $encoding = self::getEncoding($encoding); 511 if ('CP850' === $encoding || 'ASCII' === $encoding) { 512 return \strlen($s); 513 } 514 515 return @iconv_strlen($s, $encoding); 516 } 517 518 public static function mb_strpos($haystack, $needle, $offset = 0, $encoding = null) 519 { 520 $encoding = self::getEncoding($encoding); 521 if ('CP850' === $encoding || 'ASCII' === $encoding) { 522 return strpos($haystack, $needle, $offset); 523 } 524 525 $needle = (string) $needle; 526 if ('' === $needle) { 527 if (80000 > \PHP_VERSION_ID) { 528 trigger_error(__METHOD__.': Empty delimiter', \E_USER_WARNING); 529 530 return false; 531 } 532 533 return 0; 534 } 535 536 return iconv_strpos($haystack, $needle, $offset, $encoding); 537 } 538 539 public static function mb_strrpos($haystack, $needle, $offset = 0, $encoding = null) 540 { 541 $encoding = self::getEncoding($encoding); 542 if ('CP850' === $encoding || 'ASCII' === $encoding) { 543 return strrpos($haystack, $needle, $offset); 544 } 545 546 if ($offset != (int) $offset) { 547 $offset = 0; 548 } elseif ($offset = (int) $offset) { 549 if ($offset < 0) { 550 if (0 > $offset += self::mb_strlen($needle)) { 551 $haystack = self::mb_substr($haystack, 0, $offset, $encoding); 552 } 553 $offset = 0; 554 } else { 555 $haystack = self::mb_substr($haystack, $offset, 2147483647, $encoding); 556 } 557 } 558 559 $pos = '' !== $needle || 80000 > \PHP_VERSION_ID 560 ? iconv_strrpos($haystack, $needle, $encoding) 561 : self::mb_strlen($haystack, $encoding); 562 563 return false !== $pos ? $offset + $pos : false; 564 } 565 566 public static function mb_str_split($string, $split_length = 1, $encoding = null) 567 { 568 if (null !== $string && !\is_scalar($string) && !(\is_object($string) && method_exists($string, '__toString'))) { 569 trigger_error('mb_str_split() expects parameter 1 to be string, '.\gettype($string).' given', \E_USER_WARNING); 570 571 return null; 572 } 573 574 if (1 > $split_length = (int) $split_length) { 575 if (80000 > \PHP_VERSION_ID) { 576 trigger_error('The length of each segment must be greater than zero', \E_USER_WARNING); 577 578 return false; 579 } 580 581 throw new \ValueError('Argument #2 ($length) must be greater than 0'); 582 } 583 584 if (null === $encoding) { 585 $encoding = mb_internal_encoding(); 586 } 587 588 if ('UTF-8' === $encoding = self::getEncoding($encoding)) { 589 $rx = '/('; 590 while (65535 < $split_length) { 591 $rx .= '.{65535}'; 592 $split_length -= 65535; 593 } 594 $rx .= '.{'.$split_length.'})/us'; 595 596 return preg_split($rx, $string, -1, \PREG_SPLIT_DELIM_CAPTURE | \PREG_SPLIT_NO_EMPTY); 597 } 598 599 $result = []; 600 $length = mb_strlen($string, $encoding); 601 602 for ($i = 0; $i < $length; $i += $split_length) { 603 $result[] = mb_substr($string, $i, $split_length, $encoding); 604 } 605 606 return $result; 607 } 608 609 public static function mb_strtolower($s, $encoding = null) 610 { 611 return self::mb_convert_case($s, \MB_CASE_LOWER, $encoding); 612 } 613 614 public static function mb_strtoupper($s, $encoding = null) 615 { 616 return self::mb_convert_case($s, \MB_CASE_UPPER, $encoding); 617 } 618 619 public static function mb_substitute_character($c = null) 620 { 621 if (null === $c) { 622 return 'none'; 623 } 624 if (0 === strcasecmp($c, 'none')) { 625 return true; 626 } 627 if (80000 > \PHP_VERSION_ID) { 628 return false; 629 } 630 if (\is_int($c) || 'long' === $c || 'entity' === $c) { 631 return false; 632 } 633 634 throw new \ValueError('Argument #1 ($substitute_character) must be "none", "long", "entity" or a valid codepoint'); 635 } 636 637 public static function mb_substr($s, $start, $length = null, $encoding = null) 638 { 639 $encoding = self::getEncoding($encoding); 640 if ('CP850' === $encoding || 'ASCII' === $encoding) { 641 return (string) substr($s, $start, null === $length ? 2147483647 : $length); 642 } 643 644 if ($start < 0) { 645 $start = iconv_strlen($s, $encoding) + $start; 646 if ($start < 0) { 647 $start = 0; 648 } 649 } 650 651 if (null === $length) { 652 $length = 2147483647; 653 } elseif ($length < 0) { 654 $length = iconv_strlen($s, $encoding) + $length - $start; 655 if ($length < 0) { 656 return ''; 657 } 658 } 659 660 return (string) iconv_substr($s, $start, $length, $encoding); 661 } 662 663 public static function mb_stripos($haystack, $needle, $offset = 0, $encoding = null) 664 { 665 [$haystack, $needle] = str_replace(self::SIMPLE_CASE_FOLD[0], self::SIMPLE_CASE_FOLD[1], [ 666 self::mb_convert_case($haystack, \MB_CASE_LOWER, $encoding), 667 self::mb_convert_case($needle, \MB_CASE_LOWER, $encoding), 668 ]); 669 670 return self::mb_strpos($haystack, $needle, $offset, $encoding); 671 } 672 673 public static function mb_stristr($haystack, $needle, $part = false, $encoding = null) 674 { 675 $pos = self::mb_stripos($haystack, $needle, 0, $encoding); 676 677 return self::getSubpart($pos, $part, $haystack, $encoding); 678 } 679 680 public static function mb_strrchr($haystack, $needle, $part = false, $encoding = null) 681 { 682 $encoding = self::getEncoding($encoding); 683 if ('CP850' === $encoding || 'ASCII' === $encoding) { 684 $pos = strrpos($haystack, $needle); 685 } else { 686 $needle = self::mb_substr($needle, 0, 1, $encoding); 687 $pos = iconv_strrpos($haystack, $needle, $encoding); 688 } 689 690 return self::getSubpart($pos, $part, $haystack, $encoding); 691 } 692 693 public static function mb_strrichr($haystack, $needle, $part = false, $encoding = null) 694 { 695 $needle = self::mb_substr($needle, 0, 1, $encoding); 696 $pos = self::mb_strripos($haystack, $needle, $encoding); 697 698 return self::getSubpart($pos, $part, $haystack, $encoding); 699 } 700 701 public static function mb_strripos($haystack, $needle, $offset = 0, $encoding = null) 702 { 703 $haystack = self::mb_convert_case($haystack, \MB_CASE_LOWER, $encoding); 704 $needle = self::mb_convert_case($needle, \MB_CASE_LOWER, $encoding); 705 706 $haystack = str_replace(self::SIMPLE_CASE_FOLD[0], self::SIMPLE_CASE_FOLD[1], $haystack); 707 $needle = str_replace(self::SIMPLE_CASE_FOLD[0], self::SIMPLE_CASE_FOLD[1], $needle); 708 709 return self::mb_strrpos($haystack, $needle, $offset, $encoding); 710 } 711 712 public static function mb_strstr($haystack, $needle, $part = false, $encoding = null) 713 { 714 $pos = strpos($haystack, $needle); 715 if (false === $pos) { 716 return false; 717 } 718 if ($part) { 719 return substr($haystack, 0, $pos); 720 } 721 722 return substr($haystack, $pos); 723 } 724 725 public static function mb_get_info($type = 'all') 726 { 727 $info = [ 728 'internal_encoding' => self::$internalEncoding, 729 'http_output' => 'pass', 730 'http_output_conv_mimetypes' => '^(text/|application/xhtml\+xml)', 731 'func_overload' => 0, 732 'func_overload_list' => 'no overload', 733 'mail_charset' => 'UTF-8', 734 'mail_header_encoding' => 'BASE64', 735 'mail_body_encoding' => 'BASE64', 736 'illegal_chars' => 0, 737 'encoding_translation' => 'Off', 738 'language' => self::$language, 739 'detect_order' => self::$encodingList, 740 'substitute_character' => 'none', 741 'strict_detection' => 'Off', 742 ]; 743 744 if ('all' === $type) { 745 return $info; 746 } 747 if (isset($info[$type])) { 748 return $info[$type]; 749 } 750 751 return false; 752 } 753 754 public static function mb_http_input($type = '') 755 { 756 return false; 757 } 758 759 public static function mb_http_output($encoding = null) 760 { 761 return null !== $encoding ? 'pass' === $encoding : 'pass'; 762 } 763 764 public static function mb_strwidth($s, $encoding = null) 765 { 766 $encoding = self::getEncoding($encoding); 767 768 if ('UTF-8' !== $encoding) { 769 $s = iconv($encoding, 'UTF-8//IGNORE', $s); 770 } 771 772 $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, $wide); 773 774 return ($wide << 1) + iconv_strlen($s, 'UTF-8'); 775 } 776 777 public static function mb_substr_count($haystack, $needle, $encoding = null) 778 { 779 return substr_count($haystack, $needle); 780 } 781 782 public static function mb_output_handler($contents, $status) 783 { 784 return $contents; 785 } 786 787 public static function mb_chr($code, $encoding = null) 788 { 789 if (0x80 > $code %= 0x200000) { 790 $s = \chr($code); 791 } elseif (0x800 > $code) { 792 $s = \chr(0xC0 | $code >> 6).\chr(0x80 | $code & 0x3F); 793 } elseif (0x10000 > $code) { 794 $s = \chr(0xE0 | $code >> 12).\chr(0x80 | $code >> 6 & 0x3F).\chr(0x80 | $code & 0x3F); 795 } else { 796 $s = \chr(0xF0 | $code >> 18).\chr(0x80 | $code >> 12 & 0x3F).\chr(0x80 | $code >> 6 & 0x3F).\chr(0x80 | $code & 0x3F); 797 } 798 799 if ('UTF-8' !== $encoding = self::getEncoding($encoding)) { 800 $s = mb_convert_encoding($s, $encoding, 'UTF-8'); 801 } 802 803 return $s; 804 } 805 806 public static function mb_ord($s, $encoding = null) 807 { 808 if ('UTF-8' !== $encoding = self::getEncoding($encoding)) { 809 $s = mb_convert_encoding($s, 'UTF-8', $encoding); 810 } 811 812 if (1 === \strlen($s)) { 813 return \ord($s); 814 } 815 816 $code = ($s = unpack('C*', substr($s, 0, 4))) ? $s[1] : 0; 817 if (0xF0 <= $code) { 818 return (($code - 0xF0) << 18) + (($s[2] - 0x80) << 12) + (($s[3] - 0x80) << 6) + $s[4] - 0x80; 819 } 820 if (0xE0 <= $code) { 821 return (($code - 0xE0) << 12) + (($s[2] - 0x80) << 6) + $s[3] - 0x80; 822 } 823 if (0xC0 <= $code) { 824 return (($code - 0xC0) << 6) + $s[2] - 0x80; 825 } 826 827 return $code; 828 } 829 830 public static function mb_str_pad(string $string, int $length, string $pad_string = ' ', int $pad_type = \STR_PAD_RIGHT, string $encoding = null): string 831 { 832 if (!\in_array($pad_type, [\STR_PAD_RIGHT, \STR_PAD_LEFT, \STR_PAD_BOTH], true)) { 833 throw new \ValueError('mb_str_pad(): Argument #4 ($pad_type) must be STR_PAD_LEFT, STR_PAD_RIGHT, or STR_PAD_BOTH'); 834 } 835 836 if (null === $encoding) { 837 $encoding = self::mb_internal_encoding(); 838 } 839 840 try { 841 $validEncoding = @self::mb_check_encoding('', $encoding); 842 } catch (\ValueError $e) { 843 throw new \ValueError(sprintf('mb_str_pad(): Argument #5 ($encoding) must be a valid encoding, "%s" given', $encoding)); 844 } 845 846 // BC for PHP 7.3 and lower 847 if (!$validEncoding) { 848 throw new \ValueError(sprintf('mb_str_pad(): Argument #5 ($encoding) must be a valid encoding, "%s" given', $encoding)); 849 } 850 851 if (self::mb_strlen($pad_string, $encoding) <= 0) { 852 throw new \ValueError('mb_str_pad(): Argument #3 ($pad_string) must be a non-empty string'); 853 } 854 855 $paddingRequired = $length - self::mb_strlen($string, $encoding); 856 857 if ($paddingRequired < 1) { 858 return $string; 859 } 860 861 switch ($pad_type) { 862 case \STR_PAD_LEFT: 863 return self::mb_substr(str_repeat($pad_string, $paddingRequired), 0, $paddingRequired, $encoding).$string; 864 case \STR_PAD_RIGHT: 865 return $string.self::mb_substr(str_repeat($pad_string, $paddingRequired), 0, $paddingRequired, $encoding); 866 default: 867 $leftPaddingLength = floor($paddingRequired / 2); 868 $rightPaddingLength = $paddingRequired - $leftPaddingLength; 869 870 return self::mb_substr(str_repeat($pad_string, $leftPaddingLength), 0, $leftPaddingLength, $encoding).$string.self::mb_substr(str_repeat($pad_string, $rightPaddingLength), 0, $rightPaddingLength, $encoding); 871 } 872 } 873 874 private static function getSubpart($pos, $part, $haystack, $encoding) 875 { 876 if (false === $pos) { 877 return false; 878 } 879 if ($part) { 880 return self::mb_substr($haystack, 0, $pos, $encoding); 881 } 882 883 return self::mb_substr($haystack, $pos, null, $encoding); 884 } 885 886 private static function html_encoding_callback(array $m) 887 { 888 $i = 1; 889 $entities = ''; 890 $m = unpack('C*', htmlentities($m[0], \ENT_COMPAT, 'UTF-8')); 891 892 while (isset($m[$i])) { 893 if (0x80 > $m[$i]) { 894 $entities .= \chr($m[$i++]); 895 continue; 896 } 897 if (0xF0 <= $m[$i]) { 898 $c = (($m[$i++] - 0xF0) << 18) + (($m[$i++] - 0x80) << 12) + (($m[$i++] - 0x80) << 6) + $m[$i++] - 0x80; 899 } elseif (0xE0 <= $m[$i]) { 900 $c = (($m[$i++] - 0xE0) << 12) + (($m[$i++] - 0x80) << 6) + $m[$i++] - 0x80; 901 } else { 902 $c = (($m[$i++] - 0xC0) << 6) + $m[$i++] - 0x80; 903 } 904 905 $entities .= '&#'.$c.';'; 906 } 907 908 return $entities; 909 } 910 911 private static function title_case(array $s) 912 { 913 return self::mb_convert_case($s[1], \MB_CASE_UPPER, 'UTF-8').self::mb_convert_case($s[2], \MB_CASE_LOWER, 'UTF-8'); 914 } 915 916 private static function getData($file) 917 { 918 if (file_exists($file = __DIR__.'/Resources/unidata/'.$file.'.php')) { 919 return require $file; 920 } 921 922 return false; 923 } 924 925 private static function getEncoding($encoding) 926 { 927 if (null === $encoding) { 928 return self::$internalEncoding; 929 } 930 931 if ('UTF-8' === $encoding) { 932 return 'UTF-8'; 933 } 934 935 $encoding = strtoupper($encoding); 936 937 if ('8BIT' === $encoding || 'BINARY' === $encoding) { 938 return 'CP850'; 939 } 940 941 if ('UTF8' === $encoding) { 942 return 'UTF-8'; 943 } 944 945 return $encoding; 946 } 947 }
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| Generated: Mon Nov 25 19:05:08 2024 | Cross-referenced by PHPXref 0.7.1 |