七年以来,PHP一直是第四大最流行的编程语言,驱动全球超过2亿多个网站,全球超过81.7%的公共网站在服务器端采用PHP。PHP在这个星期有了自2004年以来最大的飞跃,因为PHP 7已经发布。PHP 7最大特色是极大地改进了性能,在一些WordPress基准测试当中,性能可以达到PHP 5.6的3倍。 下载地址: PHP 7.0.2 Final for Windows 32-bit (14.59 MB) PHP 7.0.2 Final for Windows 64-bit (14.59 MB) PHP 7.0.2 Final for Linux(10.52 MB) PHP 7还有其他一些比较小的改进,比如显著减少内存使用,添加返回类型声明等等功能。PHP 7包含了一些重大安全改进,如除去PHP安全模式,添加魔术引号,有一些新的保留关键字等等。这意味着像WordPress等Web应用程序需要局部重新设计,以便为PHP 7发布做好准备,现在WordPress看起来已经完全兼容PHP 7。 虽然PHP 7已经发布,但是广泛采用还需要数年之久,Web应用,特别是针对企业的Web应用,要花费几年时间才能升级到新版本平台。然而,很多Web开发人员都认为,PHP 7巨大的性能改进对他们很有吸引力。 Version 7.0.2 07 Jan 2016 Core: Fixed bug#71165(-DGC_BENCH=1 doesn't work on PHP7). Fixed bug#71163(Segmentation Fault: cleanup_unfinished_calls). Fixed bug#71109(ZEND_MOD_CONFLICTS("xdebug") doesn't work). Fixed bug#71092(Segmentation fault with return type hinting). Fixed bug memleak in header_register_callback. Fixed bug#71067(Local object in class method stays in memory for each call). Fixed bug#66909(configure fails utf8_to_mutf7 test). Fixed bug#70781(Extension tests fail on dynamic ext dependency). Fixed bug#71089(No check to duplicate zend_extension). Fixed bug#71086(Invalid numeric literal parse error within highlight_string() function). Fixed bug#71154(Incorrect HT iterator invalidation causes iterator reuse). Fixed bug#52355(Negating zero does not produce negative zero). Fixed bug#66179(var_export() exports float as integer). Fixed bug#70804(Unary add on negative zero produces positive zero). CURL: Fixed bug#71144(Sementation fault when using cURL with ZTS). DBA: Fixed key leak with invalid resource. Filter: Fixed bug#71063(filter_input(INPUT_ENV, ..) does not work). FTP: Implemented FR#55651(Option to ignore the returned FTP PASV address). FPM: Fixed bug#70755(fpm_log.c memory leak and buffer overflow). GD: Fixed bug#70976(Memory Read via gdImageRotateInterpolated Array Index Out of Bounds). Mbstring: Fixed bug#71066(mb_send_mail: Program terminated with signal SIGSEGV, Segmentation fault). Opcache: Fixed bug#71127(Define in auto_prepend_file is overwrite). PCRE: Fixed bug#71178(preg_replace with arrays creates [0] in replace array if not already set). Readline: Fixed bug#71094(readline_completion_function corrupts static array on second TAB). Session: Fixed bug#71122(Session GC may not remove obsolete session data). SPL: Fixed bug#71077(ReflectionMethod for ArrayObject constructor returns wrong number of parameters). Fixed bug#71153(Performance Degradation in ArrayIterator with large arrays). Standard: Fixed bug#71270(Heap BufferOver Flow in escapeshell functions). WDDX: Fixed bug#70661(Use After Free Vulnerability in WDDX Packet Deserialization). Fixed bug#70741(Session WDDX Packet Deserialization Type Confusion Vulnerability). XMLRPC: Fixed bug#70728(Type Confusion Vulnerability in PHP_to_XMLRPC_worker).