upgrade.php
735 lines
| 1 | <?php |
| 2 | /** |
| 3 | * api: php |
| 4 | * title: upgrade.php |
| 5 | * description: Emulates functions from new PHP versions on older interpreters. |
| 6 | * version: 17 |
| 7 | * license: Public Domain |
| 8 | * url: http://freshmeat.net/projects/upgradephp |
| 9 | * type: functions |
| 10 | * category: library |
| 11 | * priority: auto |
| 12 | * load_if: (PHP_VERSION<5.2) |
| 13 | * sort: -255 |
| 14 | * provides: upgrade-php, api:php5, json |
| 15 | * |
| 16 | * |
| 17 | * By loading this library you get PHP version independence. It provides |
| 18 | * downwards compatibility to older PHP interpreters by emulating missing |
| 19 | * functions or constants using IDENTICAL NAMES. So this doesn't slow down |
| 20 | * script execution on setups where the native functions already exist. It |
| 21 | * is meant as quick drop-in solution. It spares you from rewriting code or |
| 22 | * using cumbersome workarounds instead of the more powerful v5 functions. |
| 23 | * |
| 24 | * It cannot mirror PHP5s extended OO-semantics and functionality into PHP4 |
| 25 | * however. A few features are added here that weren't part of PHP yet. And |
| 26 | * some other function collections are separated out into the ext/ directory. |
| 27 | * It doesn't produce many custom error messages (YAGNI), and instead leaves |
| 28 | * reporting to invoked functions or for native PHP execution. |
| 29 | * |
| 30 | * And further this is PUBLIC DOMAIN (no copyright, no license, no warranty) |
| 31 | * so therefore compatible to ALL open source licenses. You could rip this |
| 32 | * paragraph out to republish this instead only under more restrictive terms |
| 33 | * or your favorite license (GNU LGPL/GPL, BSDL, MPL/CDDL, Artistic/PHPL, ..) |
| 34 | * |
| 35 | * Any contribution is appreciated. <milky*users#sf#net> |
| 36 | * |
| 37 | */ |
| 38 | use Piwik\SettingsServer; |
| 39 | |
| 40 | /** |
| 41 | * ------------------------------ 5.2 --- |
| 42 | * @group 5_2 |
| 43 | * @since 5.2 |
| 44 | * |
| 45 | * Additions of PHP 5.2.0 |
| 46 | * - some listed here might have appeared earlier or in release candidates |
| 47 | * |
| 48 | * @emulated |
| 49 | * error_get_last |
| 50 | * preg_last_error |
| 51 | * lchown |
| 52 | * lchgrp |
| 53 | * E_RECOVERABLE_ERROR |
| 54 | * M_SQRTPI |
| 55 | * M_LNPI |
| 56 | * M_EULER |
| 57 | * M_SQRT3 |
| 58 | * |
| 59 | * @missing |
| 60 | * sys_getloadavg |
| 61 | * inet_ntop |
| 62 | * inet_pton |
| 63 | * array_fill_keys |
| 64 | * array_intersect_key |
| 65 | * array_intersect_ukey |
| 66 | * array_diff_key |
| 67 | * array_diff_ukey |
| 68 | * array_product |
| 69 | * pdo_drivers |
| 70 | * ftp_ssl_connect |
| 71 | * XmlReader |
| 72 | * XmlWriter |
| 73 | * PDO* |
| 74 | * |
| 75 | * @unimplementable |
| 76 | * stream_* |
| 77 | * |
| 78 | */ |
| 79 | |
| 80 | /** |
| 81 | * Constants for future 64-bit integer support. |
| 82 | * |
| 83 | */ |
| 84 | if (!defined("PHP_INT_SIZE")) { define("PHP_INT_SIZE", 4); } |
| 85 | if (!defined("PHP_INT_MAX")) { define("PHP_INT_MAX", 2147483647); } |
| 86 | |
| 87 | /* |
| 88 | These functions emulate the "character type" extension, which is |
| 89 | present in PHP first since version 4.3 per default. In this variant |
| 90 | only ASCII and Latin-1 characters are being handled. The first part |
| 91 | is eventually faster. |
| 92 | */ |
| 93 | |
| 94 | |
| 95 | /** |
| 96 | * Sets the default client character set. |
| 97 | * |
| 98 | * @compat |
| 99 | * Procedural style |
| 100 | * @bugs |
| 101 | * PHP documentation says this function exists in PHP 5 >= 5.0.5, |
| 102 | * but it also depends on the versions of external libraries, e.g., |
| 103 | * php_mysqli.dll and libmysql.dll. |
| 104 | * |
| 105 | * @param $link mysqli MySQLi connection resource |
| 106 | * @param $charset string Character set |
| 107 | * @return bool TRUE on success, FALSE on failure |
| 108 | */ |
| 109 | if (in_array('mysqli', @get_loaded_extensions()) && !function_exists('mysqli_set_charset')) { |
| 110 | function mysqli_set_charset($link, $charset) |
| 111 | { |
| 112 | return mysqli_query($link, "SET NAMES '$charset'"); |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | /** |
| 117 | * parse_ini_file() replacement. |
| 118 | * Behaves like parse_ini_file($filename, $process_sections); |
| 119 | * |
| 120 | * @author Andrew Sohn <asohn (at) aircanopy (dot) net> |
| 121 | * @author anthon (dot) pang (at) gmail (dot) com |
| 122 | * |
| 123 | * @param string $filename |
| 124 | * @param bool $process_sections (defaults to false) |
| 125 | * @return array |
| 126 | */ |
| 127 | if(function_exists('parse_ini_file')) { |
| 128 | // provide a wrapper |
| 129 | function _parse_ini_file($filename, $process_sections = false) { |
| 130 | if(!file_exists($filename)) { |
| 131 | return false; |
| 132 | } |
| 133 | |
| 134 | return parse_ini_file($filename, $process_sections); |
| 135 | } |
| 136 | } else { |
| 137 | // we can't redefine parse_ini_file() if it has been disabled |
| 138 | function _parse_ini_file($filename, $process_sections = false) |
| 139 | { |
| 140 | if(!file_exists($filename)) { |
| 141 | return false; |
| 142 | } |
| 143 | |
| 144 | if(function_exists('file_get_contents')) { |
| 145 | $ini = file_get_contents($filename); |
| 146 | } else if(function_exists('file')) { |
| 147 | if($ini = file($filename)) { |
| 148 | $ini = implode("\n", $ini); |
| 149 | } |
| 150 | } else if(function_exists('fopen') && function_exists('fread')) { |
| 151 | $handle = fopen($filename, 'r'); |
| 152 | if(!$handle) { |
| 153 | return false; |
| 154 | } |
| 155 | $ini = fread($handle, filesize($filename)); |
| 156 | fclose($handle); |
| 157 | } else { |
| 158 | return false; |
| 159 | } |
| 160 | |
| 161 | if($ini === false) { |
| 162 | return false; |
| 163 | } |
| 164 | if(is_string($ini)) { $ini = explode("\n", str_replace("\r", "\n", $ini)); } |
| 165 | if (count($ini) == 0) { return array(); } |
| 166 | |
| 167 | $sections = array(); |
| 168 | $values = array(); |
| 169 | $result = array(); |
| 170 | $globals = array(); |
| 171 | $i = 0; |
| 172 | foreach ($ini as $line) { |
| 173 | $line = trim($line); |
| 174 | $line = str_replace("\t", " ", $line); |
| 175 | |
| 176 | // Comments |
| 177 | if (!preg_match('/^[a-zA-Z0-9[]/', $line)) {continue;} |
| 178 | |
| 179 | // Sections |
| 180 | if ($line[0] == '[') { |
| 181 | $tmp = explode(']', $line); |
| 182 | $sections[] = trim(substr($tmp[0], 1)); |
| 183 | $i++; |
| 184 | continue; |
| 185 | } |
| 186 | |
| 187 | // Key-value pair |
| 188 | list($key, $value) = explode('=', $line, 2); |
| 189 | $key = trim($key); |
| 190 | $value = trim($value); |
| 191 | if (strstr($value, ";")) { |
| 192 | $tmp = explode(';', $value); |
| 193 | if (count($tmp) == 2) { |
| 194 | if ((($value[0] != '"') && ($value[0] != "'")) || |
| 195 | preg_match('/^".*"\s*;/', $value) || preg_match('/^".*;[^"]*$/', $value) || |
| 196 | preg_match("/^'.*'\s*;/", $value) || preg_match("/^'.*;[^']*$/", $value) ){ |
| 197 | $value = $tmp[0]; |
| 198 | } |
| 199 | } else { |
| 200 | if ($value[0] == '"') { |
| 201 | $value = preg_replace('/^"(.*)".*/', '$1', $value); |
| 202 | } elseif ($value[0] == "'") { |
| 203 | $value = preg_replace("/^'(.*)'.*/", '$1', $value); |
| 204 | } else { |
| 205 | $value = $tmp[0]; |
| 206 | } |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | $value = trim($value); |
| 211 | $value = trim($value, "'\""); |
| 212 | |
| 213 | if ($i == 0) { |
| 214 | if (substr($key, -2) == '[]') { |
| 215 | $globals[substr($key, 0, -2)][] = $value; |
| 216 | } else { |
| 217 | $globals[$key] = $value; |
| 218 | } |
| 219 | } else { |
| 220 | if (substr($key, -2) == '[]') { |
| 221 | $values[$i-1][substr($key, 0, -2)][] = $value; |
| 222 | } else { |
| 223 | $values[$i-1][$key] = $value; |
| 224 | } |
| 225 | } |
| 226 | } |
| 227 | |
| 228 | for ($j = 0; $j < $i; $j++) { |
| 229 | if (isset($values[$j])) { |
| 230 | if ($process_sections === true) { |
| 231 | $result[$sections[$j]] = $values[$j]; |
| 232 | } else { |
| 233 | $result[] = $values[$j]; |
| 234 | } |
| 235 | } else { |
| 236 | if ($process_sections === true) { |
| 237 | $result[$sections[$j]] = array(); |
| 238 | } |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | return $result + $globals; |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | /** |
| 247 | * glob() replacement. |
| 248 | * Behaves like glob($pattern, $flags) |
| 249 | * |
| 250 | * @author BigueNique AT yahoo DOT ca |
| 251 | * @author anthon (dot) pang (at) gmail (dot) com |
| 252 | * |
| 253 | * @param string $pattern |
| 254 | * @param int $flags GLOBL_ONLYDIR, GLOB_MARK, GLOB_NOSORT (other flags not supported; defaults to 0) |
| 255 | * @return array |
| 256 | */ |
| 257 | if(function_exists('glob')) { |
| 258 | // provide a wrapper |
| 259 | function _glob($pattern, $flags = 0) { |
| 260 | return glob($pattern, $flags); |
| 261 | } |
| 262 | } else if(function_exists('opendir') && function_exists('readdir')) { |
| 263 | // we can't redefine glob() if it has been disabled |
| 264 | function _glob($pattern, $flags = 0) { |
| 265 | $path = dirname($pattern); |
| 266 | $filePattern = basename($pattern); |
| 267 | if(is_dir($path) && ($handle = opendir($path)) !== false) { |
| 268 | $matches = array(); |
| 269 | while(($file = readdir($handle)) !== false) { |
| 270 | if(($file[0] != '.') |
| 271 | && fnmatch($filePattern, $file) |
| 272 | && (!($flags & GLOB_ONLYDIR) || is_dir("$path/$file"))) { |
| 273 | $matches[] = "$path/$file" . ($flags & GLOB_MARK ? '/' : ''); |
| 274 | } |
| 275 | } |
| 276 | closedir($handle); |
| 277 | if(!($flags & GLOB_NOSORT)) { |
| 278 | sort($matches); |
| 279 | } |
| 280 | return $matches; |
| 281 | } |
| 282 | return false; |
| 283 | } |
| 284 | } else { |
| 285 | function _glob($pattern, $flags = 0) { |
| 286 | return false; |
| 287 | } |
| 288 | } |
| 289 | |
| 290 | /** |
| 291 | * Reads entire file into a string. |
| 292 | * This function is not 100% compatible with the native function. |
| 293 | * |
| 294 | * @see http://php.net/file_get_contents |
| 295 | * @since PHP 4.3.0 |
| 296 | * |
| 297 | * @param string $filename Name of the file to read. |
| 298 | * @return string The read data or false on failure. |
| 299 | */ |
| 300 | if (!function_exists('file_get_contents')) |
| 301 | { |
| 302 | function file_get_contents($filename) |
| 303 | { |
| 304 | $fhandle = fopen($filename, "r"); |
| 305 | $fcontents = fread($fhandle, filesize($filename)); |
| 306 | fclose($fhandle); |
| 307 | return $fcontents; |
| 308 | } |
| 309 | } |
| 310 | |
| 311 | /** |
| 312 | * Safe serialize() and unserialize() replacements |
| 313 | * |
| 314 | * @license Public Domain |
| 315 | * |
| 316 | * @author anthon (dot) pang (at) gmail (dot) com |
| 317 | */ |
| 318 | |
| 319 | /* |
| 320 | * Arbitrary limits for safe_unserialize() |
| 321 | */ |
| 322 | define('MAX_SERIALIZED_INPUT_LENGTH', 4096); |
| 323 | define('MAX_SERIALIZED_ARRAY_LENGTH', 256); |
| 324 | define('MAX_SERIALIZED_ARRAY_DEPTH', 3); |
| 325 | |
| 326 | |
| 327 | /** |
| 328 | * Safe serialize() replacement |
| 329 | * - output a strict subset of PHP's native serialized representation |
| 330 | * - does not serialize objects |
| 331 | * |
| 332 | * @param mixed $value |
| 333 | * @return string |
| 334 | * @throw Exception if $value is malformed or contains unsupported types (e.g., resources, objects) |
| 335 | */ |
| 336 | function _safe_serialize( $value ) |
| 337 | { |
| 338 | if(is_null($value)) |
| 339 | { |
| 340 | return 'N;'; |
| 341 | } |
| 342 | if(is_bool($value)) |
| 343 | { |
| 344 | return 'b:'.(int)$value.';'; |
| 345 | } |
| 346 | if(is_int($value)) |
| 347 | { |
| 348 | return 'i:'.$value.';'; |
| 349 | } |
| 350 | if(is_float($value)) |
| 351 | { |
| 352 | return 'd:'.str_replace(',', '.', $value).';'; |
| 353 | } |
| 354 | if(is_string($value)) |
| 355 | { |
| 356 | return 's:'.strlen($value).':"'.$value.'";'; |
| 357 | } |
| 358 | if(is_array($value)) |
| 359 | { |
| 360 | $out = ''; |
| 361 | foreach($value as $k => $v) |
| 362 | { |
| 363 | $out .= _safe_serialize($k) . _safe_serialize($v); |
| 364 | } |
| 365 | |
| 366 | return 'a:'.count($value).':{'.$out.'}'; |
| 367 | } |
| 368 | |
| 369 | // safe_serialize cannot serialize resources or objects |
| 370 | return false; |
| 371 | } |
| 372 | |
| 373 | /** |
| 374 | * Wrapper for _safe_serialize() that handles exceptions and multibyte encoding issue |
| 375 | * |
| 376 | * @param mixed $value |
| 377 | * @return string |
| 378 | */ |
| 379 | function safe_serialize( $value ) |
| 380 | { |
| 381 | // ensure we use the byte count for strings even when strlen() is overloaded by mb_strlen() |
| 382 | if (function_exists('mb_internal_encoding') && |
| 383 | (((int) ini_get('mbstring.func_overload')) & 2)) |
| 384 | { |
| 385 | $mbIntEnc = mb_internal_encoding(); |
| 386 | mb_internal_encoding('ASCII'); |
| 387 | } |
| 388 | |
| 389 | $out = _safe_serialize($value); |
| 390 | |
| 391 | if (isset($mbIntEnc)) |
| 392 | { |
| 393 | mb_internal_encoding($mbIntEnc); |
| 394 | } |
| 395 | return $out; |
| 396 | } |
| 397 | |
| 398 | /** |
| 399 | * Safe unserialize() replacement |
| 400 | * - accepts a strict subset of PHP's native serialized representation |
| 401 | * - does not unserialize objects |
| 402 | * |
| 403 | * @param string $str |
| 404 | * @return mixed |
| 405 | * @throw Exception if $str is malformed or contains unsupported types (e.g., resources, objects) |
| 406 | */ |
| 407 | function _safe_unserialize($str) |
| 408 | { |
| 409 | if(strlen($str) > MAX_SERIALIZED_INPUT_LENGTH) |
| 410 | { |
| 411 | // input exceeds MAX_SERIALIZED_INPUT_LENGTH |
| 412 | return false; |
| 413 | } |
| 414 | |
| 415 | if(empty($str) || !is_string($str)) |
| 416 | { |
| 417 | return false; |
| 418 | } |
| 419 | |
| 420 | $stack = array(); |
| 421 | $expected = array(); |
| 422 | |
| 423 | /* |
| 424 | * states: |
| 425 | * 0 - initial state, expecting a single value or array |
| 426 | * 1 - terminal state |
| 427 | * 2 - in array, expecting end of array or a key |
| 428 | * 3 - in array, expecting value or another array |
| 429 | */ |
| 430 | $state = 0; |
| 431 | while($state != 1) |
| 432 | { |
| 433 | $type = isset($str[0]) ? $str[0] : ''; |
| 434 | |
| 435 | if($type == '}') |
| 436 | { |
| 437 | $str = substr($str, 1); |
| 438 | } |
| 439 | else if($type == 'N' && $str[1] == ';') |
| 440 | { |
| 441 | $value = null; |
| 442 | $str = substr($str, 2); |
| 443 | } |
| 444 | else if($type == 'b' && preg_match('/^b:([01]);/', $str, $matches)) |
| 445 | { |
| 446 | $value = $matches[1] == '1' ? true : false; |
| 447 | $str = substr($str, 4); |
| 448 | } |
| 449 | else if($type == 'i' && preg_match('/^i:(-?[0-9]+);(.*)/s', $str, $matches)) |
| 450 | { |
| 451 | $value = (int)$matches[1]; |
| 452 | $str = $matches[2]; |
| 453 | } |
| 454 | else if($type == 'd' && preg_match('/^d:(-?[0-9]+\.?[0-9]*(E[+-][0-9]+)?);(.*)/s', $str, $matches)) |
| 455 | { |
| 456 | $value = (float)$matches[1]; |
| 457 | $str = $matches[3]; |
| 458 | } |
| 459 | else if($type == 's' && preg_match('/^s:([0-9]+):"(.*)/s', $str, $matches) && substr($matches[2], (int)$matches[1], 2) == '";') |
| 460 | { |
| 461 | $value = substr($matches[2], 0, (int)$matches[1]); |
| 462 | $str = substr($matches[2], (int)$matches[1] + 2); |
| 463 | } |
| 464 | else if($type == 'a' && preg_match('/^a:([0-9]+):{(.*)/s', $str, $matches) && $matches[1] < MAX_SERIALIZED_ARRAY_LENGTH) |
| 465 | { |
| 466 | $expectedLength = (int)$matches[1]; |
| 467 | $str = $matches[2]; |
| 468 | } |
| 469 | else |
| 470 | { |
| 471 | // object or unknown/malformed type |
| 472 | return false; |
| 473 | } |
| 474 | |
| 475 | switch($state) |
| 476 | { |
| 477 | case 3: // in array, expecting value or another array |
| 478 | if($type == 'a') |
| 479 | { |
| 480 | if(count($stack) >= MAX_SERIALIZED_ARRAY_DEPTH) |
| 481 | { |
| 482 | // array nesting exceeds MAX_SERIALIZED_ARRAY_DEPTH |
| 483 | return false; |
| 484 | } |
| 485 | |
| 486 | $stack[] = &$list; |
| 487 | $list[$key] = array(); |
| 488 | $list = &$list[$key]; |
| 489 | $expected[] = $expectedLength; |
| 490 | $state = 2; |
| 491 | break; |
| 492 | } |
| 493 | if($type != '}') |
| 494 | { |
| 495 | $list[$key] = $value; |
| 496 | $state = 2; |
| 497 | break; |
| 498 | } |
| 499 | |
| 500 | // missing array value |
| 501 | return false; |
| 502 | |
| 503 | case 2: // in array, expecting end of array or a key |
| 504 | if($type == '}') |
| 505 | { |
| 506 | if(count($list) < end($expected)) |
| 507 | { |
| 508 | // array size less than expected |
| 509 | return false; |
| 510 | } |
| 511 | |
| 512 | unset($list); |
| 513 | $list = &$stack[count($stack)-1]; |
| 514 | array_pop($stack); |
| 515 | |
| 516 | // go to terminal state if we're at the end of the root array |
| 517 | array_pop($expected); |
| 518 | if(count($expected) == 0) { |
| 519 | $state = 1; |
| 520 | } |
| 521 | break; |
| 522 | } |
| 523 | if($type == 'i' || $type == 's') |
| 524 | { |
| 525 | if(count($list) >= MAX_SERIALIZED_ARRAY_LENGTH) |
| 526 | { |
| 527 | // array size exceeds MAX_SERIALIZED_ARRAY_LENGTH |
| 528 | return false; |
| 529 | } |
| 530 | if(count($list) >= end($expected)) |
| 531 | { |
| 532 | // array size exceeds expected length |
| 533 | return false; |
| 534 | } |
| 535 | |
| 536 | $key = $value; |
| 537 | $state = 3; |
| 538 | break; |
| 539 | } |
| 540 | |
| 541 | // illegal array index type |
| 542 | return false; |
| 543 | |
| 544 | case 0: // expecting array or value |
| 545 | if($type == 'a') |
| 546 | { |
| 547 | if(count($stack) >= MAX_SERIALIZED_ARRAY_DEPTH) |
| 548 | { |
| 549 | // array nesting exceeds MAX_SERIALIZED_ARRAY_DEPTH |
| 550 | return false; |
| 551 | } |
| 552 | |
| 553 | $data = array(); |
| 554 | $list = &$data; |
| 555 | $expected[] = $expectedLength; |
| 556 | $state = 2; |
| 557 | break; |
| 558 | } |
| 559 | if($type != '}') |
| 560 | { |
| 561 | $data = $value; |
| 562 | $state = 1; |
| 563 | break; |
| 564 | } |
| 565 | |
| 566 | // not in array |
| 567 | return false; |
| 568 | } |
| 569 | } |
| 570 | |
| 571 | if(!empty($str)) |
| 572 | { |
| 573 | // trailing data in input |
| 574 | return false; |
| 575 | } |
| 576 | return $data; |
| 577 | } |
| 578 | |
| 579 | /** |
| 580 | * Wrapper for _safe_unserialize() that handles exceptions and multibyte encoding issue |
| 581 | * |
| 582 | * @param string $str |
| 583 | * @return mixed |
| 584 | */ |
| 585 | function safe_unserialize( $str ) |
| 586 | { |
| 587 | // ensure we use the byte count for strings even when strlen() is overloaded by mb_strlen() |
| 588 | if (function_exists('mb_internal_encoding') && |
| 589 | (((int) ini_get('mbstring.func_overload')) & 2)) |
| 590 | { |
| 591 | $mbIntEnc = mb_internal_encoding(); |
| 592 | mb_internal_encoding('ASCII'); |
| 593 | } |
| 594 | |
| 595 | $out = _safe_unserialize($str); |
| 596 | |
| 597 | if (isset($mbIntEnc)) |
| 598 | { |
| 599 | mb_internal_encoding($mbIntEnc); |
| 600 | } |
| 601 | return $out; |
| 602 | } |
| 603 | |
| 604 | /** |
| 605 | * readfile() replacement. |
| 606 | * Behaves similar to readfile($filename); |
| 607 | * |
| 608 | * @author anthon (dot) pang (at) gmail (dot) com |
| 609 | * |
| 610 | * @param string $filename |
| 611 | * @param bool $useIncludePath |
| 612 | * @param resource $context |
| 613 | * @return int the number of bytes read from the file, or false if an error occurs |
| 614 | */ |
| 615 | function _readfile($filename, $byteStart, $byteEnd, $useIncludePath = false, $context = null) |
| 616 | { |
| 617 | $count = @filesize($filename); |
| 618 | |
| 619 | // built-in function has a 2 MB limit when using mmap |
| 620 | if (function_exists('readfile') |
| 621 | && $count <= (2 * 1024 * 1024) |
| 622 | && $byteStart == 0 |
| 623 | && $byteEnd == $count |
| 624 | ) { |
| 625 | return @readfile($filename, $useIncludePath, $context); |
| 626 | } |
| 627 | |
| 628 | // when in doubt (or when readfile() function is disabled) |
| 629 | $handle = @fopen($filename, SettingsServer::isWindows() ? "rb" : "r"); |
| 630 | if ($handle) { |
| 631 | fseek($handle, $byteStart); |
| 632 | |
| 633 | for ($pos = $byteStart; $pos < $byteEnd && !feof($handle); $pos = ftell($handle)) { |
| 634 | echo fread($handle, min(8192, $byteEnd - $pos)); |
| 635 | |
| 636 | @ob_flush(); |
| 637 | @flush(); |
| 638 | } |
| 639 | |
| 640 | fclose($handle); |
| 641 | return $byteEnd - $byteStart; |
| 642 | } |
| 643 | return false; |
| 644 | } |
| 645 | |
| 646 | /** |
| 647 | * utf8_encode replacement |
| 648 | * |
| 649 | * @param string $data |
| 650 | * @return string |
| 651 | */ |
| 652 | if (!function_exists('utf8_encode')) { |
| 653 | function utf8_encode($data) { |
| 654 | if (function_exists('iconv')) { |
| 655 | return @iconv('ISO-8859-1', 'UTF-8', $data); |
| 656 | } |
| 657 | return $data; |
| 658 | } |
| 659 | } |
| 660 | |
| 661 | /** |
| 662 | * utf8_decode replacement |
| 663 | * |
| 664 | * @param string $data |
| 665 | * @return string |
| 666 | */ |
| 667 | if (!function_exists('utf8_decode')) { |
| 668 | function utf8_decode($data) { |
| 669 | if (function_exists('iconv')) { |
| 670 | return @iconv('UTF-8', 'ISO-8859-1', $data); |
| 671 | } |
| 672 | return $data; |
| 673 | } |
| 674 | } |
| 675 | |
| 676 | /** |
| 677 | * Use strtolower if mb_strtolower doesn't exist (i.e., php not compiled with --enable-mbstring) |
| 678 | * This is not a functional replacement for mb_strtolower. |
| 679 | * |
| 680 | * @param string $input |
| 681 | * @param string $charset |
| 682 | */ |
| 683 | if(!function_exists('mb_strtolower')) { |
| 684 | function mb_strtolower($input, $charset = '') { |
| 685 | return strtolower($input); |
| 686 | } |
| 687 | } |
| 688 | |
| 689 | /** |
| 690 | * Use strlen if mb_strlen doesn't exist (i.e., php not compiled with --enable-mbstring) |
| 691 | * This is not a functional replacement for mb_strlen. |
| 692 | * |
| 693 | * @param string $input |
| 694 | * @param string $charset |
| 695 | */ |
| 696 | if(!function_exists('mb_strlen')) { |
| 697 | function mb_strlen($input, $charset = '') { |
| 698 | return strlen($input); |
| 699 | } |
| 700 | } |
| 701 | |
| 702 | /** |
| 703 | * On ubuntu in some cases, there is a bug that gzopen does not exist and one must use gzopen64 instead |
| 704 | */ |
| 705 | if (!function_exists('gzopen') |
| 706 | && function_exists('gzopen64')) { |
| 707 | function gzopen($filename , $mode = 'r', $use_include_path = 0 ) |
| 708 | { |
| 709 | return gzopen64($filename , $mode, $use_include_path); |
| 710 | } |
| 711 | } |
| 712 | |
| 713 | if (!function_exists('dump')) { |
| 714 | function dump () { |
| 715 | |
| 716 | } |
| 717 | } |
| 718 | |
| 719 | /** |
| 720 | * Need to catch that PHP7 error object on php5 |
| 721 | */ |
| 722 | if( !class_exists('\Error')) { |
| 723 | class Error { |
| 724 | |
| 725 | } |
| 726 | } |
| 727 | |
| 728 | if(!function_exists('fnmatch')) { |
| 729 | |
| 730 | function fnmatch($pattern, $string) { |
| 731 | return preg_match("#^".strtr(preg_quote($pattern, '#'), array('\*' => '.*', '\?' => '.'))."$#i", $string); |
| 732 | } // end |
| 733 | |
| 734 | } // end if |
| 735 |