637:(formerly Zend Cache and then Zend Accelerator) is a commercial Web Application Server product. It has a complete set of performance capabilities that includes more than a simple PHP accelerator. Features include code caching/acceleration, data caching, content (html output) caching, download optimization and off-line (asynchronous) processing capabilities that can result in significant performance improvements for most PHP applications. It also includes detailed PHP monitoring and root cause analysis support to help in tuning and debugging, session fail-over support for HA (
269:
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666:), PHP accelerator developed by Microsoft for PHP under Windows. The extension includes PHP opcode cache, file cache, resolve file path cache, object/session cache, file change notifications and lock/unlock API's. Combination of all these caches results in significant performance improvements for PHP applications hosted on Windows. The extension is primarily used with
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reading code from the disk and compiling it on future access. For further performance improvements, the stored bytecode is optimized for faster execution. Unlike Zend
Optimizer, Zend OPcache doesn't load files encoded by Zend Guard. Zend provides another component, Zend Guard Loader, in order to load encoded applications with
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is a fast, stable PHP opcode cacher that has been tested and is now running on production servers under high load. It is tested on Linux and FreeBSD and supported under
Windows, for thread-safe and non-thread-safe versions of PHP. This relatively new opcode caching software has been developed by mOo,
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was founded and at a time when the performance of PHP was regarded as lackluster when compared to other popular web programming languages, PHPA showed that PHP can compete with other languages performance-wise. Although the author of PHPA chose to keep the project closed source in response to early
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and Zend Server
Community Edition bundled with the PHP language itself. Zend OPcache speeds up PHP execution by opcode caching and optimization. It stores precompiled script bytecode in shared memory. As of version 7.0 it can store precompiled script bytecode on disk. This eliminates the stages of
402:
about the effect that an open source rival might have on their commercial alternative, the availability of PHPA on a wide variety of platforms led to its extensive adoption worldwide from small sites to Yahoo!. It also inspired the redevelopment of APC to use the shared memory execution techniques
95:
APC was originally scheduled for inclusion into the PHP core no later than PHP 6. While multiple accelerator projects were considered desirable, the focus has since moved to
Optimizer Plus, and, later, Zend OPcache that is included in the core distribution as of PHP 5.5. Since March 2013, a beta
342:
Supports PHP 4 and all PHP 5 thread-safe releases including 5.4. In older releases, the encoder will only work with PHP versions from the 4.x.x branch. eAccelerator will not work with any other versions of PHP. eAccelerator can only be used with the thread-safe version of
515:
is a free PHP opcode cache that loads both Nu-Coder (commercial) encoded and plain PHP files directly into the PHP engine, saving loading time and boosting performance of PHP applications. It's available on
Windows, Linux, FreeBSD, NetBSD, Mac OS X, and Solaris.
1739:"Benchmarking Drupal with PHP op-code caches: APC, eAccelerator and XCache compared | 2bits.com, Inc. - Drupal Performance Optimization, Development, Managed Hosting, Customization and Consulting"
323:
was born in
December 2004 as a fork of the Turck MMCache project. Turck MMCache was created by Dmitry Stogov and much of the eAccelerator code is still based on his work. eAccelerator also contained a
85:, thus reducing parsing and disk I/O overhead for later requests; and a shared memory cache for user data. For an application consisting of a large source code base such as
96:
version of APCu (APC User Cache) is available, in which all opcode caching abilities have been removed to support user caches in shared memory using the familiar APC API.
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Dormant, potentially dead (no new releases since July 2012). The last public activity was the transfer to GitHub by Hans Rakers. The master branch supports PHP 5.4.
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460:, to overcome some of the limitations of the existing solutions at that time; such as being able to use it with new PHP versions as they arrive.
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Potentially dead (no new releases since Jan 2012 and they are not responding to enquires). The last supported version of PHP was 5.3.
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that PHPA and Zend Cache had adopted instead of deserialization on each request that incurred performance penalties.
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It has been used at
Facebook and has a mature codebase thanks to numerous contributors, including Facebook itself.
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was the first freely available PHP accelerator to compete with the commercial Zend Cache product. Created before
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works with PHP 5.2 (VC6 NTS), 5.3 (VC9 NTS), 5.4 (VC9 NTS), 5.5 (VC11 NTS), 5.6 and 7.0, source code available
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and loader, but the development staff discontinued the encoder and removed this feature after
December 2006.
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Zend
Platform and Zend Core are now in 'end of life' status and are replaced with Zend Server.
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Please help update this article to reflect recent events or newly available information.
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Please help update this article to reflect recent events or newly available information.
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Starting with PHP 5.5 the Zend OPcache is integrated and shipped with PHP.
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641:) needs and other integration capabilities including Java integration.
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1844:"PHP :: Bug #64625 :: Segfault on PHP 5.4.13 and APC 3.1.13"
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https://web.archive.org/web/20120224193029/http://xcache.lighttpd.net/
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http://www.nusphere.ru/files/download/NuSphere-PhpExpress-3.0.zip
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works with all PHP versions up to PHP 5.4 (3.1.13 - beta release)
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http://www.nusphere.com/kb/phpexpressmanual/part1.htm#2
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http://turck-mmcache.sourceforge.net/index_old.html
1962:"Enterprise PHP Solutions | Zend by Perforce"
1688:. It does not optimize or cache PHP's byte code.
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138:(source code, required for up-to-date compilation)
487:Dormant, potentially dead (No release since 2014)
281:may be compromised due to out-of-date information
2517:
1781:"'[PHP-DEV] APC in trunk' thread - MARC"
159:; includes instructions for building on Windows)
157:sources of the PHP version it is to be used with
540:http://www.nusphere.com/products/phpexpress.htm
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606:https://github.com/zend-dev/ZendOptimizerPlus/
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1802:"'Re: [PHP-DEV] APC in trunk' - MARC"
502:http://xcache.lighttpd.net/InstallFromSource
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1684:that loads files encoded and obfuscated by
202:Learn how and when to remove these messages
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1976:"Zend Server - PHP Web Application Server"
384:
379:https://eaccelerator.net/InstallFromSource
729:
494:http://xcache.lighttpd.net/ReleaseArchive
364:Download link: (look for latest versions)
308:Learn how and when to remove this message
251:Learn how and when to remove this message
716:http://www.iis.net/expand/WinCacheForPhp
682:http://www.iis.net/expand/WinCacheForPHP
598:http://pecl.php.net/package/ZendOpcache
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2037:"Zend Optimizer and Zend Guard Loader"
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670:and non-thread-safe build of PHP via
649:http://www.zend.com/products/platform
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708:http://pecl.php.net/package/WinCache
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2017:"Zend Platform 3.6.3 Release Notes"
1891:"PECL :: Package :: APCu"
1484:Zend OPcache (ex. Zend Optimizer+)
941:Zend OPcache (ex. Zend Optimizer+)
587:to Zend OPcache mid of March 2013.
580:and Zend Server Community Edition.
398:concerns raised by Zeev Suraski of
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564:Zend OPcache (ex. Zend Optimizer+)
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183:This article has multiple issues.
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571:is an open source component of
191:or discuss these issues on the
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149:http://php.net/apc.installation
136:http://pecl.php.net/package/APC
104:http://pecl.php.net/package/APC
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481:3.2.0 (Released on 2014-9-18)
475:full support for up to PHP 5.6
391:ionCube PHP Accelerator (PHPA)
222:This section needs editing to
1:
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701:released, actively developed.
668:Internet Information Services
1936:"ZendOptimizerPlus - GitHub"
434:is a fork of Turck MMCache.
371:download page on SourceForge
7:
1706:Computer programming portal
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724:http://www.php.net/wincache
529:Official installation help:
499:Official installation help:
376:Official installation help:
142:Official installation help:
62:Alternative PHP Cache (APC)
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721:Help and API documentation
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662:A free, open source (New
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456:one of the developers of
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31:This article needs to be
1823:"PHP: rfc:optimizerplus"
1721:(HipHop Virtual Machine)
750:Resolve file path cache
367:http://eaccelerator.net/
335:http://eaccelerator.net/
224:comply with Knowledge's
155:be compiled against the
145:http://php.net/apc.setup
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825:PHP Accelerator (PHPA)
713:Download link (binary):
705:Download link (source):
385:ionCube PHP Accelerator
730:Comparison of features
693:Latest stable version:
617:Latest stable version:
551:Latest stable version:
479:Latest stable version:
415:http://www.ioncube.com
347:Latest stable version:
121:Latest stable version:
753:Object/session cache
430:is now discontinued.
67:Alternative PHP Cache
1422:Nusphere PhpExpress
912:Nusphere PhpExpress
695:2.0.0.8 (2016-11-09)
583:Zend Optimizer+ was
349:0.9.6.1 (2010-05-31)
115:Latest beta version:
1762:. Blog.facebook.com
1031:Compatibility chart
625:Actively maintained
508:Nusphere PhpExpress
233:improve the content
117:3.1.13 (2012-09-03)
1760:"PHP and Facebook"
389:Launched in 2001,
123:3.1.9 (2011-05-14)
54:This is a list of
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1912:"Zend Optimizer+"
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1678:Zend Guard Loader
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1039:PHP accelerators
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639:High Availability
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2205:
2202:
2200:
2197:
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2192:
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2182:
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2177:
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2172:
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2169:
2165:
2159:
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2141:
2138:
2134:
2131:
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2124:
2119:
2109:
2106:
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2078:
2073:
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2066:
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2058:
2055:
2038:
2032:
2018:
2012:
1998:
1992:
1977:
1971:
1963:
1957:
1943:
1942:
1937:
1931:
1917:
1913:
1907:
1892:
1886:
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1803:
1797:
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1581:
1578:
1575:
1572:
1569:
1566:
1563:
1560:
1557:
1554:
1551:
1549:Discontinued
1548:
1545:
1544:
1540:
1537:
1534:
1531:
1528:
1525:
1522:
1519:
1516:
1513:
1510:
1507:
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1498:
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1489:
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1460:
1457:
1454:
1451:
1448:
1445:
1442:
1439:
1436:
1433:
1430:
1427:
1425:Discontinued
1424:
1421:
1420:
1416:
1413:
1410:
1407:
1404:
1401:
1398:
1395:
1392:
1389:
1386:
1383:
1380:
1377:
1374:
1371:
1368:
1365:
1363:Discontinued
1362:
1359:
1358:
1354:
1351:
1348:
1345:
1342:
1339:
1336:
1333:
1330:
1327:
1324:
1321:
1318:
1315:
1312:
1309:
1306:
1303:
1301:Discontinued
1300:
1297:
1296:
1292:
1289:
1286:
1283:
1280:
1277:
1274:
1271:
1268:
1265:
1262:
1259:
1256:
1253:
1250:
1247:
1244:
1241:
1239:Discontinued
1238:
1235:
1234:
1230:
1227:
1224:
1221:
1218:
1215:
1212:
1209:
1206:
1203:
1200:
1197:
1194:
1191:
1188:
1185:
1182:
1179:
1177:Discontinued
1176:
1174:eAccelerator
1173:
1172:
1168:
1165:
1162:
1159:
1156:
1153:
1150:
1147:
1144:
1141:
1138:
1135:
1132:
1129:
1126:
1123:
1120:
1117:
1115:Discontinued
1114:
1111:
1110:
1106:
1103:
1100:
1097:
1094:
1091:
1088:
1085:
1082:
1079:
1076:
1073:
1070:
1067:
1064:
1061:
1058:
1055:
1054:
1042:Availability
1037:
1022:
1019:
1016:
1013:
1010:
1007:
1004:
1001:
998:
997:
993:
990:
987:
984:
981:
978:
975:
973:Discontinued
972:
969:
968:
964:
961:
958:
955:
952:
949:
946:
943:
940:
939:
935:
932:
929:
926:
923:
920:
917:
915:Discontinued
914:
911:
910:
906:
903:
900:
897:
894:
891:
888:
886:Discontinued
885:
882:
881:
877:
874:
871:
868:
865:
862:
859:
857:Discontinued
856:
853:
852:
848:
845:
842:
839:
836:
833:
830:
828:Discontinued
827:
824:
823:
819:
816:
813:
810:
807:
804:
801:
799:Discontinued
798:
796:eAccelerator
795:
794:
790:
787:
784:
781:
778:
775:
772:
770:Discontinued
769:
766:
765:
761:
758:
756:Optimization
755:
752:
749:
746:
744:Opcode cache
743:
741:Availability
740:
737:
736:
725:
722:
719:
717:
714:
711:
709:
706:
703:
700:
697:
694:
691:
688:
685:
683:
680:
677:
676:
675:
673:
669:
665:
655:
650:
647:
644:
643:
642:
640:
636:
635:Zend Platform
630:Zend Platform
624:
621:
618:
615:
612:
609:
607:
604:
601:
599:
596:
593:
592:
591:
588:
586:
581:
579:
574:
570:
558:
555:
552:
549:
546:
543:
541:
538:
535:
533:
530:
527:
525:
522:
519:
518:
517:
514:
503:
500:
497:
495:
492:
489:
486:
483:
480:
477:
474:
471:
469:
466:
463:
462:
461:
459:
454:
443:
440:
437:
436:
435:
433:
429:
428:
427:Turck MMCache
421:Turck MMCache
416:
412:
409:
406:
405:
404:
401:
396:
392:
380:
377:
374:
372:
368:
365:
362:
360:
357:
354:
351:
348:
345:
341:
338:
336:
333:
330:
329:
328:
326:
322:
312:
309:
294:
291:February 2013
282:
280:
274:
265:
264:
255:
252:
244:
241:February 2013
234:
229:
227:
220:
211:
210:
205:
203:
196:
195:
190:
189:
184:
179:
170:
169:
158:
154:
150:
146:
143:
140:
137:
134:
131:
128:
125:
122:
119:
116:
113:
110:
107:
105:
102:
99:
98:
97:
93:
90:
88:
84:
83:shared memory
80:
76:
72:
68:
59:
57:
46:
43:December 2014
34:
29:
20:
19:
16:
2526:PHP software
2340:Silverstripe
2136:
2108:Zeev Suraski
2098:Andi Gutmans
2040:. Retrieved
2031:
2020:. Retrieved
2011:
2000:. Retrieved
1991:
1980:. Retrieved
1970:
1956:
1945:. Retrieved
1939:
1930:
1919:. Retrieved
1906:
1895:. Retrieved
1885:
1874:. Retrieved
1848:. Retrieved
1838:
1827:. Retrieved
1817:
1806:. Retrieved
1796:
1785:. Retrieved
1775:
1764:. Retrieved
1754:
1743:. Retrieved
1733:
1677:
1676:
1051:PHP version
1048:Web servers
720:
712:
704:
698:
692:
687:PHP version:
686:
678:
661:
653:
645:
634:
633:
622:
616:
611:PHP version:
610:
602:
594:
589:
582:
569:Zend OPcache
568:
567:
556:
550:
545:PHP version:
544:
536:
528:
520:
512:
511:
498:
490:
484:
478:
473:PHP version:
472:
464:
452:
451:
438:
432:eAccelerator
425:
424:
407:
395:ionCube Ltd.
390:
388:
375:
363:
352:
346:
340:PHP version:
339:
331:
321:eAccelerator
319:
304:
288:
277:
247:
238:
231:Please help
223:
199:
192:
186:
185:Please help
182:
164:eAccelerator
156:
152:
141:
132:
126:
120:
114:
109:PHP version:
108:
100:
94:
91:
66:
65:
53:
40:
32:
15:
2454:Zend Studio
2434:Eclipse PDT
2429:Codelobster
2330:ProcessWire
2227:CodeIgniter
2204:Zend Engine
2133:Accelerator
1804:. Marc.info
1783:. Marc.info
1741:. 2bits.com
1611:Maintained
1487:Maintained
1002:Maintained
944:Maintained
747:File cache
664:BSD License
578:Zend Server
573:Zend Server
325:PHP encoder
151:(extension
79:PHP license
2310:PHP-Fusion
2237:eZ Publish
2022:2017-01-19
2002:2017-12-01
1982:2014-02-14
1978:. Zend.com
1947:2013-02-13
1921:2011-03-09
1897:2014-02-14
1876:2013-03-08
1850:2014-02-14
1829:2014-02-14
1808:2014-02-14
1787:2014-02-14
1766:2014-02-14
1745:2014-02-14
1726:References
1686:Zend Guard
674:protocol.
513:PhpExpress
188:improve it
2355:WordPress
2262:Gyroscope
2194:Phalanger
2153:Libraries
2126:Resources
1872:. PHP.net
194:talk page
2520:Category
2495:Category
2449:PhpStorm
2439:NetBeans
2406:Doctrine
2315:PHP-Nuke
2242:Fat-Free
2189:PeachPie
2143:Composer
2042:June 22,
1692:See also
1236:ionCube
1071:Solaris
1062:FreeBSD
1056:Windows
679:Website:
646:Website:
603:Sources:
595:Website:
537:Website:
465:Website:
458:Lighttpd
439:Website:
408:Website:
332:Website:
101:Website:
2505:Commons
2472:PHP-GTK
2444:PHPEdit
2388:PHPUnit
2375:Testing
2345:Symfony
2320:Pop PHP
2305:Phalcon
2292:Midgard
2282:Laravel
2277:Laminas
2272:Joomla!
2252:FuelPHP
2222:CakePHP
2199:Quercus
2148:Editors
1360:XCache
1077:Apache
1068:NetBSD
883:XCache
699:Status:
672:FastCGI
623:Status:
585:renamed
557:Status:
485:Status:
353:Status:
127:Status:
33:updated
2477:wxPHP
2424:Aptana
2232:Drupal
2184:Parrot
2091:People
1941:GitHub
1080:Nginx
1065:macOS
1059:Linux
453:XCache
448:XCache
87:Drupal
2383:Behat
2360:XOOPS
2350:TYPO3
2335:Qcodo
2325:PRADO
2301:Nette
2267:Horde
2179:HPHPc
738:Name
619:7.1.6
69:is a
2416:IDEs
2398:ORMs
2297:MODX
2257:Grav
2247:Flow
2174:HHVM
2158:PEAR
2137:List
2044:2011
1719:HHVM
1662:Yes
1659:Yes
1656:Yes
1653:Yes
1650:Yes
1647:Yes
1644:Yes
1641:Yes
1632:Yes
1614:Yes
1579:Yes
1573:Yes
1567:Yes
1555:Yes
1541:Yes
1538:Yes
1535:Yes
1532:Yes
1529:Yes
1526:Yes
1523:Yes
1520:Yes
1517:Yes
1514:Yes
1511:Yes
1508:Yes
1499:Yes
1496:Yes
1493:Yes
1490:Yes
1458:Yes
1455:Yes
1443:Yes
1440:Yes
1437:Yes
1434:Yes
1431:Yes
1428:Yes
1405:Yes
1402:Yes
1399:Yes
1396:Yes
1393:Yes
1390:Yes
1387:Yes
1375:Yes
1372:Yes
1369:Yes
1366:Yes
1331:Yes
1290:Yes
1287:Yes
1284:Yes
1281:Yes
1278:Yes
1275:Yes
1272:Yes
1269:Yes
1263:Yes
1257:Yes
1251:Yes
1248:Yes
1245:Yes
1242:Yes
1213:Yes
1210:Yes
1207:Yes
1204:Yes
1201:Yes
1198:Yes
1195:Yes
1186:Yes
1183:Yes
1180:Yes
1151:Yes
1148:Yes
1145:Yes
1142:Yes
1139:Yes
1133:Yes
1127:Yes
1124:Yes
1121:Yes
1118:Yes
1112:APC
1107:7.3
1104:7.2
1101:7.1
1098:7.0
1095:5.6
1092:5.5
1089:5.4
1086:5.3
1083:5.2
1074:IIS
1020:Yes
1014:Yes
1011:Yes
1008:Yes
1005:Yes
962:Yes
959:Yes
950:Yes
947:Yes
918:Yes
904:Yes
898:Yes
892:Yes
889:Yes
846:Yes
843:Yes
834:Yes
831:Yes
817:Yes
805:Yes
802:Yes
788:Yes
785:Yes
782:Yes
776:Yes
773:Yes
767:APC
343:PHP.
153:must
147:and
75:open
73:and
71:free
2365:Yii
2287:li₃
2084:PHP
1629:No
1626:No
1623:No
1620:No
1617:No
1603:No
1600:No
1597:No
1594:No
1591:No
1588:No
1585:No
1582:No
1576:No
1570:No
1564:No
1561:No
1558:No
1552:No
1505:No
1479:No
1476:No
1473:No
1470:No
1467:No
1464:No
1461:No
1417:No
1414:No
1411:No
1408:No
1355:No
1352:No
1349:No
1346:No
1343:No
1340:No
1337:No
1334:No
1293:No
1231:No
1228:No
1225:No
1222:No
1219:No
1216:No
1169:No
1166:No
1163:No
1160:No
1157:No
1154:No
1045:OS
965:No
956:No
901:No
849:No
840:No
791:No
553:3.1
2522::
1938:.
1914:.
1859:^
1665:?
1638:?
1635:?
1502:?
1452:?
1449:?
1446:?
1384:?
1381:?
1378:?
1328:?
1325:?
1322:?
1319:?
1316:?
1313:?
1310:?
1307:?
1304:?
1266:?
1260:?
1254:?
1192:?
1189:?
1136:?
1130:?
1023:?
1017:?
994:?
991:?
988:?
985:?
982:?
979:?
976:?
953:?
936:?
933:?
930:?
927:?
924:?
921:?
907:?
895:?
878:?
875:?
872:?
869:?
866:?
863:?
860:?
837:?
820:?
814:?
811:?
808:?
779:?
413:/
369:,
197:.
58:.
2139:)
2135:(
2076:e
2069:t
2062:v
2046:.
2025:.
2005:.
1985:.
1964:.
1950:.
1924:.
1900:.
1879:.
1853:.
1832:.
1811:.
1790:.
1769:.
1748:.
311:)
305:(
293:)
289:(
283:.
254:)
248:(
243:)
239:(
235:.
228:.
204:)
200:(
77:(
45:)
41:(
35:.
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