Ukukhishwa kolimi lokuhlela lwe-PHP 7.4

Ngemva konyaka wentuthuko kwethulwe ukukhululwa kolimi lokuhlela I-PHP 7.4. Igatsha elisha lihlanganisa uchungechunge lwezici ezintsha, kanye nezinguquko ezimbalwa ezinqamula ukuhambisana.

Ukhiye ukuthuthukiswa ku-PHP 7.4:

• Izakhiwo Ezithayiphiwe - izakhiwo zekilasi manje zingafaka izimemezelo zohlobo, isibonelo:

  Umsebenzisi wekilasi {
  int $id yomphakathi;
  iyunithi yezinhlamvu ezisesidlangalaleni $name;
  }

• Isifinyezo i-syntax yokuchaza imisebenzi “fn(parameter_list) => expr” ene-scope ebophezela ngevelu. Ngokwesibonelo, “fn($x) => $x + $y” ifana nokuthi “$fn2 = umsebenzi ($x) sebenzisa ($y) {buyisela $x + $y;}”);
• U-opharetha wesabelo esifushane "??=" engasetshenziswa ukuchaza inani elimisiwe ("a ??= b" lifana nelithi "a = a ?? b", uma elithi "a" lichazwa inani layo ligcinwa, futhi uma lingachazwanga. unikezwe inani "b");
• Inomkhawulo ithuba ukulondoloza isigaba sefa sezinhlobo ezinhlotsheni zokubuyisela ezitholiwe, noma ikhono lokuhlehlisa ukulandelana kwezinhlobo zangempela ezinhlotsheni zezimpikiswano ezitholiwe (i-covariance buyisela uhlobo kanye nokuphikisana kohlobo lwempikiswano). Ukwakhiwa okulandelayo manje kungasetshenziswa ku-PHP:

  isigaba A {}
  isigaba B sinweba u-A {}

  Umdidiyeli wekilasi {
  indlela yokusebenza yomphakathi(): A {}
  }
  class ChildProducer welula Umkhiqizi {
  indlela yokusebenza yomphakathi(): B {}
  }

• Ikhipha u-opharetha ngaphakathi kwamalungu afanayo “…$var”, ukuvumela yenza esikhundleni samalungu afanayo akhona lapho uchaza amalungu afanayo amasha;

  $parts = ['i-apula', 'ipheya'];
  $fruits = ['ubhanana', 'orange', …$parts, 'ikhabe'];
  // ['ibhanana', 'iwolintshi', 'i-apula', 'ipheya', 'ikhabe'];

• Ithuba ukumelwa okubukwayo kwezinombolo ezinkulu ezinama-delimiters ngamagama ezinombolo (1_000_000_00);
• ukweseka izixhumanisi ezibuthakathaka, okuvumela ukuthi ugcine ireferensi yento, kodwa ungavimbeli umqoqi kadoti ekususeni into ehlobene;
• Kusha indlela ukwenziwa kwe-serialization kwento (inhlanganisela ye-Serializable kanye __sleep()/__wakeup()), ethathele indawo isixhumi esibonakalayo esingakwazi ukusebenza, esizohoxiswa;

  // Ibuyisela uhlelo oluqukethe zonke izimo zento;
  umsebenzi womphakathi __serialize(): uhlu;

  // Ibuyisela isimo sento ohlwini
  umsebenzi womphakathi __unserialize(uhlu lwedatha ye-$): ayisebenzi;

• Kuvunyelwe ukuphonsa okuhlukile endleleni __toString();
• Kwengezwe usekelo lokulayisha kuqala inqolobane yekhodi yento. Kwengezwe ipharamitha yokusetha
  i-opcache.preload, ongacacisa ngayo umbhalo we-PHP ozohlanganiswa futhi usebenze lapho iseva iqala. Lesi script singalayisha i-opcode yamanye amafayela ngokufakwa kwawo ngokuqondile noma kusetshenziswa umsebenzi we-opcache_compile_file();

• Kwengezwe umsebenzi we-crc32c kusandiso se-Hash ukuze kubalwe amasheke kusetshenziswa i-Castagnoli polynomial;
• Ukwesekwa okungeziwe kumsebenzi we-password_hash() wezindlela ze-hashing ze-password i-argon2i ne-argin2id, ekusetshenzisweni komtapo wezincwadi we-Sodium, uma i-PHP yakhiwe ngaphandle kwe-libargon;
• Umsebenzi owengeziwe mb_str_split(), ofana nokuthi str_split(), kodwa awusebenzi ngamabhayithi kodwa unezindawo zezinhlamvu ochungechungeni lwamabhayithi amaningi;
• Umsebenzi we-strip_tags() manje unamandla okudlulisa uhlu olunamagama omaka, i.e. esikhundleni sokuthi strip_tags($str, ' ') ungakwazi manje ukucacisa strip_tags($str, ['a', 'p']);
• i-proc_open() ivumela ama-operands ukuthi afakwe ohlwini lwamalungu afanayo kunokuba iyunithi yezinhlamvu isebenze, futhi inikeza ukuqondisa kabusha kwentambo nokusekelwa kwesichazi sefayela elingenalutho;

  proc_open(['php', '-r', 'echo "Sawubona Umhlaba\n";'], $descriptors, $pipes);

  // Njengo-2>&1 kugobolondo
  proc_open($cmd, [1 => ['ipayipi', 'w'], 2 => ['qondisa kabusha', 1]], $amapayipi);

  // like 2>/dev/null noma 2>nul kugobolondo
  proc_open($cmd, [1 => ['ipayipi', 'w'], 2 => ['null']], $amapayipi);

• Izandiso ze-Firebird/Interbase, Recode ne-WDDX azifakiwe ekusabalaliseni okuyisisekelo. Lezi zandiso manje zisatshalaliswa nge-PECL;
• Kudluliselwe esigabeni isiphelelwe yisikhathi izici ezifana nama-opharetha akhiwe esidlekeni angenabo abakaki, ukufinyelela izakhi zamalungu afanayo nezintambo kusetshenziswa izikaki ezigoqekile (“$var{$idx}”), umsebenzi we-is_real() nokusakaza kokungokoqobo, kusetshenziswa igama elingukhiye elingumzali ngaphandle kwekilasi lomzali, ipharamitha allow_url_include izilungiselelo , usebenzisa i-array_key_exists() ezintweni.

  Imisebenzi get_magic_quotes_gpc(), get_magic_quotes_runtime(), kanye
  hebrevc(), convert_cyr_string(), money_format(), ezmlm_hash(), restore_include_path(), ldap_control_paged_result_response(), ldap_control_paged_result(), ReflectionType::__toString().

  Isexwayiso mayelana nokusetshenziswa kwesici esiphelelwe yisikhathi sinikezwe lapho kuzanywa ukucubungula izimpawu ezingalungile emisebenzini
  base_convert(), bindec(), octdec() kanye ne-hexdec(), nalapho ucacisa iphethini engeyona iyunithi yezinhlamvu kokuthi mb_ereg_replace().

Source: opennet.ru