发布于 2017-11-29 00:55:19 | 313 次阅读 | 评论: 0 | 来源: 网友投递
PHP开源脚本语言
PHP（外文名: Hypertext Preprocessor，中文名：“超文本预处理器”）是一种通用开源脚本语言。语法吸收了C语言、Java和Perl的特点，入门门槛较低，易于学习，使用广泛，主要适用于Web开发领域。PHP的文件后缀名为php。
PHP 7.2.0 正式发布了。PHP（PHP：Hypertext Preprocessor）是一种在电脑上执行的脚本语言，主要是用途在于处理动态网页，也包含了命令列执行接口（command line interface），或者产生图形使用者接口（GUI）程式。
该版本主要还是修复 bug，改进日志如下：
30 Nov 2017, PHP 7.2.0
- BCMath:
. Fixed bug #46564 (bcmod truncates fractionals). (liborm85)
- CLI:
. Fixed bug #74849 (Process is started as interactive shell in PhpStorm).
(Anatol)
. Fixed bug #74979 (Interactive shell opening instead of script execution
with -f flag). (Anatol)
- CLI server:
. Fixed bug #60471 (Random "Invalid request (unexpected EOF)" using a router
script). (SammyK)
- Core:
. Added ZEND_COUNT, ZEND_GET_CLASS, ZEND_GET_CALLED_CLASS, ZEND_GET_TYPE,
ZEND_FUNC_NUM_ARGS, ZEND_FUNC_GET_ARGS instructions, to implement
corresponding 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)
. 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)
. Added PHP_OS_FAMILY constant to determine on which OS we are. (Jan Altensen)
. 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 #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)
. Change PHP_OS_FAMILY value from "OSX" to "Darwin". (Sebastian, Kalle)
. Allow loading PHP/Zend extensions by name in ini files (extension=<name>).
(francois at tekwire dot net)
. Added object type annotation. (brzuchal)
. Fixed bug #74815 (crash with a combination of INI entries at startup).
(Anatol)
. Fixed bug #74836 (isset on zero-prefixed numeric indexes in array broken).
(Dmitry)
. Added new VM instuctions ISSET_ISEMPTY_CV and UNSET_CV. Previously they
were implemented as ISSET_ISEMPTY_VAR and UNSET_VAR variants with
ZEND_QUICK_SET flag. (Nikita, Dmitry)
. Fixed bug #49649 (unserialize() doesn't handle changes in property
visibility). (pmmaga)
. Fixed #74866 (extension_dir = "./ext" now use current directory for base).
(Francois Laupretre)
. Implemented FR #74963 (Improved error message on fetching property of
non-object). (Laruence)
. Fixed Bug #75142 (buildcheck.sh check for autoconf version needs to be updated
for v2.64). (zizzy at zizzy dot net, Remi)
. Fixed bug #74878 (Data race in ZTS builds). (Nikita, Dmitry)
. Fixed bug #75515 ("stream_copy_to_stream" doesn't stream anymore). (Sara)
- cURL:
. Fixed bug #75093 (OpenSSL support not detected). (Remi)
. Better fix for #74125 (use pkg-config instead of curl-config). (Remi)
- Date:
. Fixed bug #55407 (Impossible to prototype DateTime::createFromFormat).
(kelunik)
. Implemented FR #71520 (Adding the DateTime constants to the
DateTimeInterface interface). (Majkl578)
. Fixed bug #75149 (redefinition of typedefs ttinfo and t1info). (Remi)
. Fixed bug #75222 (DateInterval microseconds property always 0). (jhdxr)
- Dba:
. Fixed bug #72885 (flatfile: dba_fetch() fails to read replaced entry).
(Anatol)
- DOM:
. Implement #74837 (Implement Countable for DomNodeList and DOMNamedNodeMap).
(Andreas Treichel)
- 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)
. Implemented #65187 (exif_read_data/thumbnail: add support for stream
resource). (Kalle)
. Deprecated the read_exif_data() alias. (Kalle)
. Fixed bug #74428 (exif_read_data(): "Illegal IFD size" warning occurs with
correct exif format). (bradpiccho at gmail dot com, Kalle)
. Fixed bug #72819 (EXIF thumbnails not read anymore). (Kalle)
. Fixed bug #62523 (php crashes with segfault when exif_read_data called).
(Kalle)
. Fixed bug #50660 (exif_read_data(): Illegal IFD offset (works fine with
other exif readers). (skinny dot bravo at gmail dot com, Kalle)
- Fileinfo:
. Upgrade bundled libmagic to 5.31. (Anatol)
- FPM:
. Configuration to limit fpm slow log trace callers. (Sannis)
. Fixed bug #75212 (php_value acts like php_admin_value). (Remi)
- FTP:
. Implement MLSD for structured listing of directories. (blar)
. Added ftp_append() function. (blar)
- GD:
. Implemented imageresolution as getter and setter (Christoph)
. Fixed bug #74744 (gd.h: stdarg.h include missing for va_list use in
gdErrorMethod). (rainer dot jung at kippdata dot de, cmb)
. Fixed bug #75111 (Memory disclosure or DoS via crafted .bmp image). (cmb)
- GMP:
. Fixed bug #70896 (gmp_fact() silently ignores non-integer input). (Sara)
- Hash:
. Changed HashContext from resource to object. (Rouven Weßling, Sara)
. Disallowed usage of non-cryptographic hash functions with HMAC and PBKDF2.
(Andrey Andreev, Nikita)
. Fixed Bug #75284 (sha3 is not supported on bigendian machine). (Remi)
- IMAP:
. Fixed bug #72324 (imap_mailboxmsginfo() return wrong size).
(ronaldpoon at udomain dot com dot hk, Kalle)
- Intl:
. Fixed bug #63790 (test using Spoofchecker which may be unavailable). (Sara)
. Fixed bug #75378 ([REGRESSION] IntlDateFormatter::parse() does not change
$position argument). (Laruence)
- JSON:
. Add JSON_INVALID_UTF8_IGNORE and JSON_INVALID_UTF8_SUBSTITUTE options for
json_encode and json_decode to ignore or replace invalid UTF-8 byte
sequences - it addresses request #65082. (Jakub Zelenka)
. Fixed bug #75185 (Buffer overflow in json_decode() with
JSON_INVALID_UTF8_IGNORE or JSON_INVALID). (Jakub Zelenka)
. Fixed bug #68567 (JSON_PARTIAL_OUTPUT_ON_ERROR can result in JSON with null
key). (Jakub Zelenka)
- LDAP:
. Implemented FR #69445 (Support for LDAP EXOP operations)
. Fixed support for LDAP_OPT_SERVER_CONTROLS and LDAP_OPT_CLIENT_CONTROLS in ldap_get_option
. Fixed passing an empty array to ldap_set_option for client or server controls.
- 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)
. Fixed bug #69267 (mb_strtolower fails on titlecase characters). (Nikita)
- Mcrypt:
. The deprecated mcrypt extension has been moved to PECL. (leigh)
- Opcache:
. Added global optimisation passes based on data flow analysis using Single
Static Assignment (SSA) form: Sparse Conditional Constant Propagation (SCCP),
Dead Code Elimination (DCE), and removal of unused local variables
(Nikita, Dmitry)
. Fixed incorect constant conditional jump elimination. (Dmitry)
. Fixed bug #75230 (Invalid opcode 49/1/8 using opcache). (Laruence)
. Fixed bug (assertion fails with extended info generated). (Laruence)
. Fixed bug (Phi sources removel). (Laruence)
. Fixed bug #75370 (Webserver hangs on valid PHP text). (Laruence)
. Fixed bug #75357 (segfault loading WordPress wp-admin). (Laruence)
- OpenSSL:
. Use TLS_ANY for default ssl:// and tls:// negotiation. (kelunik)
. Fix leak in openssl_spki_new(). (jelle at vdwaa dot nl)
. Added openssl_pkcs7_read() and pk7 parameter to openssl_pkcs7_verify().
(jelle at vdwaa dot nl)
. Add ssl security_level stream option to support OpenSSL security levels.
(Jakub Zelenka).
. Allow setting SNI cert and private key in separate files. (Jakub Zelenka)
. Fixed bug #74903 (openssl_pkcs7_encrypt() uses different EOL than before).
(Anatol)
. Automatically load OpenSSL configuration file. (Jakub Zelenka)
- PCRE:
. Added support for PCRE JIT fast path API. (dmitry)
. Fixed bug #61780 (Inconsistent PCRE captures in match results). (cmb)
. Fixed bug #74873 (Minor BC break: PCRE_JIT changes output of preg_match()).
(Dmitry)
. Fixed bug #75089 (preg_grep() is not reporting PREG_BAD_UTF8_ERROR after
first input string). (Dmitry)
. Fixed bug #75223 (PCRE JIT broken in 7.2). (Dmitry)
. Fixed bug #75285 (Broken build when system libpcre don't have jit support).
(Remi)
- phar:
. Fixed bug #74196 (phar does not correctly handle names containing dots).
(mhagstrand)
- 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 #74537 (Align --with-pdo-oci configure option with --with-oci8 syntax).
(Tianfang Yang)
- PDO_Sqlite
. Switch to sqlite3_prepare_v2() and sqlite3_close_v2() functions (rasmus)
- PHPDBG
. Added extended_value to opcode dump output. (Sara)
- 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 #74514 (5 session functions incorrectly warn when calling in
read-only/getter mode). (Yasuo)
. Fixed bug #74936 (session_cache_expire/cache_limiter/save_path() trigger a
warning in read mode). (morozov)
. Fixed bug #74941 (session fails to start after having headers sent).
(morozov)
- Sodium:
. New cryptographic extension
. Added missing bindings for libsodium > 1.0.13. (Frank)
- SPL:
. Fixed bug #71412 (Incorrect arginfo for ArrayIterator::__construct).
(tysonandre775 at hotmail dot com)
. Added spl_object_id(). (Tyson Andre)
- SQLite3:
. Implement writing to blobs. (bohwaz at github dot com)
. Update to Sqlite 3.20.1. (cmb)
- Standard:
. Fixed bug #69442 (closing of fd incorrect when PTS enabled). (jaytaph)
. Fixed bug #74300 (unserialize accepts two plus/minus signs for float number exponent part).
(xKerman)
. Compatibility with libargon2 versions 20161029 and 20160821.
(charlesportwoodii at erianna dot com)
. Fixed Bug #74737 (mysqli_get_client_info reflection info).
(mhagstrand at gmail dot com)
. Add support for extension name as argument to dl().
(francois at tekwire dot net)
. Fixed bug #74851 (uniqid() without more_entropy performs badly).
(Emmanuel Dreyfus)
. Fixed bug #74103 (heap-use-after-free when unserializing invalid array
size). (Nikita)
. Fixed bug #75054 (A Denial of Service Vulnerability was found when
performing deserialization). (Nikita)
. Fixed bug #75170 (mt_rand() bias on 64-bit machines). (Nikita)
. Fixed bug #75221 (Argon2i always throws NUL at the end). (cmb)
- Streams:
. Default ssl/single_dh_use and ssl/honor_cipher_order to true. (kelunik)
- XML:
. Moved utf8_encode() and utf8_decode() to the Standard extension. (Andrea)
- 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)
. ZipArchive implements countable, added ZipArchive::count() method. (Remi)
. Fix segfault in php_stream_context_get_option call. (Remi)
. Fixed bug #75143 (new method setEncryptionName() seems not to exist
in ZipArchive). (Anatol)
- zlib:
. Expose inflate_get_status() and inflate_get_read_len() functions.
(Matthew Trescott)
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