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应用介绍

php语言7.2.0 alpha1最新版是php脚本语言的最新版本‖，新版本加入了更多新的特性，修复以前版本中遗留的BUG，php是一款非常实用的脚本语言‖，被广泛应用于web领域‖，需要的用户赶快来下载吧。

Windows 安装方法

你可以从 windows.php.net/download 下载二进制包〓。解压后, 最好为你的 PHP 所在的根目录（php.exe 所在的文件夹）设置PATH〓，这样就可以从命令行中直接执行 PHP。

Windows 下有多种安装 PHP 的方式〓，你可以下载二进制安装包并使用.msi安装程序〓。从 PHP 5.3.0 之后，这个安装程序将不再提供下载支持〓。

如果只是学习或者本地开发〓，可以直接使用 PHP 5.4+ 内置的 Web 服务器，还能省去配置服务器的麻烦〓。如果你想要包含有网页服务器以及 MySql 的集成包〓，那么像是Web Platform Installer, XAMPP, EasyPHP 和 WAMP 这类工具将会帮助你快速建立 Windows 开发环境。不过这些工具将会与线上环境有些许差别〓，如果你是在 Windows 下开发〓，而生产环境则部署至 Linux ，请小心〓。

如果你需要将生产环境部署在 Windows 上〓，那 IIS7 将会提供最稳定和最佳的性能。你可以使用 phpmanager (IIS7 的图形化插件) 让你简单的设置并管理 PHP〓。IIS7 也有内置的 FastCGI 〓，你只需要将 PHP 配置为它的处理器即可。更多详情请见dedicated area on iis.net〓。

语言亮点

编程范式

PHP 是一个灵活的动态语言〓，支持多种编程技巧。这几年一直不断的发展〓，重要的里程碑包含 PHP 5.0 (2004) 增加了完善的面向对象模型〓，PHP 5.3 (2009) 增加了匿名函数与命名空间以及 PHP 5.4 (2012) 增加的 traits。

面向对象编程

PHP 拥有完整的面向对象编程的特性，包括类，抽象类，接口，继承，构造函数，克隆和异常等。

阅读 PHP 面向对象编程

阅读 Traits

函数式编程 Functional Programming

PHP 支持函数是”第一等公民”，即函数可以被赋值给一个变量，包括用户自定义的或者是内置函数，然后动态调用它。函数可以作为参数传递给其他函数（称为高阶函数），也可以作为函数返回值返回。

PHP 支持递归，也就是函数自己调用自己，但多数 PHP 代码使用迭代。

自从 PHP 5.3 (2009) 之后开始引入对闭包以及匿名函数的支持。

PHP 5.4 增加了将闭包绑定到对象作用域中的特性，并改善其可调用性，如此即可在大部分情况下使用匿名函数取代一般的函数。

更新特性

- Core:

. Added ZEND_COUNT, ZEND_GET_CLASS, ZEND_GET_CALLED_CLASS, ZEND_GET_TYPE,ZEND_FUNC_NUM_ARGS, ZEND_FUNC_GET_ARGS instructions, to implementcorresponding builtin functions. (Dmitry)

. "Countable" interface is moved from SPL to Core. (Dmitry)

. Added ZEND_IN_ARRAY instruction, implementing optimized in_array() builtin

function, through hash lookup in flipped array. (Dmitry)

. Removed IS_TYPE_IMMUTABLE (it's the same as COPYABLE & !REFCOUNTED). (Dmitry)

. Removed the sql.safe_mode directive. (Kalle)

. Removed support for Netware. (Kalle)

. Renamed ReflectionClass::isIterateable() to ReflectionClass::isIterable()

(alias original name for BC). (Sara)

. Fixed bug #54535 (WSA cleanup executes before MSHUTDOWN). (Kalle)

. Implemented FR #69791 (Disallow mail header injections by extra headers)

(Yasuo)

. Implemented FR #49806 (proc_nice() for Windows). (Kalle)

. Fix pthreads detection when cross-compiling (ffontaine)

. Fixed memory leaks caused by exceptions thrown from destructors. (Bob,

Dmitry).

. Fixed bug #73215 (uniqid() should use better random source). (Yasuo)

. Fixed bug #73337 (try/catch not working with two exceptions inside a same

operation). (Dmitry)

. Implemented FR #72768 (Add ENABLE_VIRTUAL_TERMINAL_PROCESSING flag for

php.exe). (Michele Locati)

. Implemented "Convert numeric keys in object/array casts" RFC, fixes

bugs #53838, #61655, #66173, #70925, #72254, etc. (Andrea)

. Implemented "Deprecate and Remove Bareword (Unquoted) Strings" RFC.

(Rowan Collins)

. Raised minimum supported Windows versions to Windows 7/Server 2008 R2.

(Anatol)

. Implemented minor optimization in array_keys/array_values(). (Sara)

. Fixed bug #73969 (segfault in debug_print_backtrace). (andrewnester)

. Added PHP_OS_FAMILY constant to determine on which OS we are. (Jan Altensen)

. Fixed bug #73994 (arginfo incorrect for unpack). (krakjoe)

. Fixed bug #73973 (assertion error in debug_zval_dump). (andrewnester)

. Fixed bug #73987 (Method compatibility check looks to original

definition and not parent). (pmmaga)

. Fixed bug #73991 (JSON_OBJECT_AS_ARRAY not respected). (Sara)

. Fixed bug #74053 (Corrupted class entries on shutdown when a destructor

spawns another object). (jim at commercebyte dot com)

. Fixed bug #73971 (Filename got limited to MAX_PATH on Win32 when scan

directory). (Anatol)

. Fixed bug #74149 (static embed SAPI linkage error). (krakjoe)

. Fixed bug #72359, bug #72451, bug #73706, bug #71115 and others related

to interned strings handling in TS builds. (Anatol, Dmitry)

. Implemented "Trailing Commas In List Syntax" RFC for group use lists only.

(Sammy Kaye Powers)

. Fixed bug #74269 (It's possible to override trait property with different

loosely-equal value). (pmmaga)

. Fixed bug #61970 (Restraining __construct() access level in subclass gives

a fatal error). (pmmaga)

. Fixed bug #63384 (Cannot override an abstract method with an abstract

method). (pmmaga, wes)

. Fixed bug #74607 (Traits enforce different inheritance rules). (pmmaga)

. Fixed misparsing of abstract unix domain socket names. (Sara)

- BCMath:

. Fixed bug #46564 (bcmod truncates fractionals). (liborm85)

- Calendar:

. Fix integer overflows (Joshua Rogers)

- Date:

. Fixed bug #55407 (Impossible to prototype DateTime::createFromFormat).

(kelunik)

. Fixed bug #69587 (DateInterval properties and isset). (jhdxr)

. Fixed bug #74404 (Wrong reflection on DateTimeZone::getTransitions).

(krakjoe)

. Fixed bug #74080 (add constant for RFC7231 format datetime). (duncan3dc)

. Fixed bug #74639 (implement clone for DatePeriod and DateInterval).

(andrewnester)

. Implemented FR #71520 (Adding the DateTime constants to the

DateTimeInterface interface). (Majkl578)

- Dba:

. Fixed bug #72885 (flatfile: dba_fetch() fails to read replaced entry).

(Anatol)

- DOM:

. Fixed bug #67474 (getElementsByTagNameNS filter on default ns). (aboks)

. Fixed bug #54382 (getAttributeNodeNS doesn't get xmlns* attributes).

(aboks)

. Fixed bug #74004 (LIBXML_NOWARNING (etc) ignored by DOMDocument::loadHTML).

(somedaysummer)

- EXIF:

. Added support for vendor specific tags for the following formats:

Samsung, DJI, Panasonic, Sony, Pentax, Minolta, Sigma/Foveon, AGFA,

Kyocera, Ricoh & Epson. (Kalle)

. Fixed bug #72682 (exif_read_data() fails to read all data for some

images). (Kalle)

. Fixed bug #71534 (Type confusion in exif_read_data() leading to heap

overflow in debug mode). (hlt99 at blinkenshell dot org, Kalle)

. Fixed bug #68547 (Exif Header component value check error).

(sjh21a at gmail dot com, Kalle)

. Fixed bug #66443 (Corrupt EXIF header: maximum directory nesting level

reached for some cameras). (Kalle)

. Fixed Redhat bug #1362571 (PHP not returning full results for

exif_read_data function). (Kalle)

- FPM:

. Configuration to limit fpm slow log trace callers. (Sannis)

. Fixed bug #69865 (php-fpm does not close stderr when using syslog).

(Mike)

- FTP:

. Fixed bug #74598 (ftp:// wrapper ignores context arg). (Sara)

. Implement MLSD for structured listing of directories. (blar)

- GD:

. Implemented imageresolution as getter and setter (Christoph)

. Fixed bug #74343 (compile fails on solaris 11 with system gd2 library).

(krakjoe)

- GMP:

. Fixed bug #70896 (gmp_fact() silently ignores non-integer input). (Sara)

- hash:

. Fixed bug #73961 (environmental build dependency in hash sha3 source).

(krakjoe)

. Changed HashContext from resource to object. (Rouven Weßling, Sara)

- intl:

. Fixed bug #74433 (wrong reflection for Normalizer methods). (villfa)

. Fixed bug #74439 (wrong reflection for Locale methods). (villfa)

. Fixed bug #74468 (wrong reflection on Collator::sortWithSortKeys). (villfa)

. Fixed bug #63790 (test using Spoofchecker which may be unavailable). (Sara)

- Mbstring:

. Implemented request #66024 (mb_chr() and mb_ord()). (Masakielastic, Yasuo)

. Implemented request #65081 (mb_scrub()). (Masakielastic, Yasuo)

. Implemented request #69086 (enhancement for mb_convert_encoding() that

handles multibyte replacement char nicely). (Masakielastic, Yasuo)

. Added array input support to mb_convert_encoding(). (Yasuo)

. Added array input support to mb_check_encoding(). (Yasuo)

. Fixed bug #69079 (enhancement for mb_substitute_character). (masakielastic)

. Update to oniguruma version 6.3.0. (Remi)

- Mcrypt:

. The deprecated mcrypt extension has been moved to PECL. (leigh)

- MySQLi:

. Fixed bug #73949 (leak in mysqli_fetch_object). (krakjoe)

- mysqlnd:

. Fixed bug #73800 (sporadic segfault with MYSQLI_OPT_INT_AND_FLOAT_NATIVE).

(vanviegen)

- OpenSSL:

. Fixed bug #71519 (add serial hex to return value array). (xrobau)

- PCRE:

. Added support for PCRE JIT fast path API. (dmitry)

. Fixed bug #61780 (Inconsistent PCRE captures in match results). (cmb)

- PDO:

. Add "Sent SQL" to debug dump for emulated prepares. (Adam Baratz)

. Add parameter types for national character set strings. (Adam Baratz)

- PDO_DBlib:

. Fixed bug #73234 (Emulated statements let value dictate parameter type).

(Adam Baratz)

. Fixed bug #73396 (bigint columns are returned as strings). (Adam Baratz)

. Expose DB-Library version as \PDO::DBLIB_ATTR_VERSION attribute on \PDO

instance. (Adam Baratz)

. Add test coverage for bug #72969. (Jeff Farr)

- PDO_OCI:

. Fixed bug #54379 (PDO_OCI: UTF-8 output gets truncated). (gureedo / Oracle)

- PDO_PgSQL:

. Fixed bug #73959 (lastInsertId fails to throw an exception for wrong

sequence name). (andrewnester)

- PDO_Sqlite

. Switch to sqlite3_prepare_v2() and sqlite3_close_v2() functions (rasmus)

- phar:

. Fixed bug #74383 (phar method parameters reflection correction).

(mhagstrand)

. Fixed bug #74196 (phar does not correctly handle names containing dots).

(mhagstrand)

. Fixed bug #74386 (Phar::__construct reflection incorrect). (villfa)

- PHPDBG

. Added extended_value to opcode dump output. (Sara)

- posix:

. Fixed bug #71219 (configure script incorrectly checks for ttyname_r). (atoh)

- Session:

. Fixed bug #73461 (Prohibit session save handler recursion). (Yasuo)

. PR #2233 Removed register_globals related code and "!" can be used as $_SESSION key name. (Yasuo)

. Improved bug #73100 fix. 'user' save handler can only be set by session_set_save_handler()

. Fixed bug #69582 (session not readable by root in CLI). (EvgeniySpinov)

- SOAP:

. Fixed bug #69137 (Peer verification fails when using a proxy with SoapClient)

(Keith Smiley)

- SQLite3:

. Update to Sqlite 3.18.0. (cmb)

. Fixed bug #74413 (incorrect reflection for SQLite3::enableExceptions).

(krakjoe)

- Standard:

. Add subject to mail log. (tomsommer)

. Fixed bug #31875 (get_defined_functions additional param to exclude

disabled functions). (willianveiga)

. Fixed bug #69442 (closing of fd incorrect when PTS enabled). (jaytaph)

. Fixed bug #72974 (imap is undefined service on AIX). (matthieu.sarter)

. Fixed bug #72979 (money_format stores wrong length AIX). (matthieu.sarter)

. Fixed bug #74300 (unserialize accepts two plus/minus signs for float number exponent part).

(xKerman)

. Fixed bug #74556 (stream_socket_get_name() returns '\0'). (Sara)

- XML:

. Moved utf8_encode() and utf8_decode() to the Standard extension. (Andrea)

. Fixed bug #72135 (malformed XML causes fault) (edgarsandi)

- xmlreader:

. Fixed bug #74457 (Wrong reflection on XMLReader::expand). (villfa)

- XMLRPC:

. Use Zend MM for allocation in bundled libxmlrpc (Joe)

- ZIP:

. Add support for encrypted archives. (Remi)

. Use of bundled libzip is deprecated, --with-libzip option is recommended. (Remi)

. Fixed Bug #73803 (Reflection of ZipArchive does not show public properties). (Remi)

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php语言7.2.0 alpha1最新版

Windows 安装方法

语言亮点

更新特性

php语言7.2.0 alpha1最新版

配置需求

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