1PHP 8.2 INTERNALS UPGRADE NOTES 2 31. Internal API changes 4 52. Build system changes 6 73. Module changes 8 94. OpCode changes 10 115. SAPI changes 12 13======================== 141. Internal API changes 15======================== 16 17* Removed zend_binary_zval_str(n)casecmp() APIs. These were thin wrappers 18 around zend_binary_str(n)casecmp_l() -- rather than 19 zend_binary_str(n)casecmp() as one would expect. Call the appropriate 20 wrapped function directly instead. 21* Removed the (ZEND_)WRONG_PARAM_COUNT_WITH_RETVAL() macros. 22* php_stristr() no longer lowercases the haystack and needle as a side effect. 23 Call zend_str_tolower() yourself if necessary. You no longer need to copy 24 the haystack and needle before passing them to php_stristr(). 25* zend_register_module_ex() no longer copies the module entry. 26* The main/php_stdint.h header has been removed. 27 Include the standard <inttypes.h> and/or <stdint.h> headers instead. 28 Replace usage of u_char by the standard C99 uint8_t type. 29* A new ZEND_THREEWAY_COMPARE() macro has been introduced which does a 30 three-way comparison of two integers and returns -1, 0 or 1 if the LHS is 31 smaller, equal or larger than the RHS 32* Deprecated zend_atoi() and zend_atol(). Use ZEND_STRTOL() for general purpose 33 string to long conversion, or a variant of zend_ini_parse_quantity() for 34 parsing ini quantities. 35* The return types of the following object handlers has changed from int to zend_result 36 - zend_object_cast_t 37 - zend_object_count_elements_t 38 - zend_object_get_closure_t 39 - zend_object_do_operation_t 40* Added a new zero_position argument to php_stream_fopen_from_fd_rel to reflect 41 if this a newly created file so the current file offset needs not to be checked. 42* Added smart_str_trim_to_size(). The function trims the memory allocated for the 43 string. This can considerably reduce the memory footprint of strings smaller 44 than approximately 4096 bytes. 45* smart_str_extract() and the spprintf family of functions now use 46 smart_str_trim_to_size() before returning the string. 47* It is recommended to use smart_str_extract() or smart_str_trim_to_size() when 48 using the smart_str API. 49* zend_is_callable_ex, and functions which call it such as zend_is_callable and 50 zend_fcall_info_init, will issue deprecation notices if passed values which 51 are deprecated (see main UPGRADING notes). To suppress the notice, e.g. to 52 avoid duplicates when processing the same value multiple times, pass or add 53 IS_CALLABLE_SUPPRESS_DEPRECATIONS to the check_flags parameter. 54* Registered zend_observer_fcall_init handlers are now also called for internal functions. 55* The pestrdup and pestrndup macros and zend_strndup function are now also infallible 56 for persistent strings, so checking for NULL is no longer necessary. 57* The CHECK_NULL_PATH and CHECK_ZVAL_NULL_PATH macros are now wrappers using 58 the new inline functions: bool zend_str_has_nul_byte(const zend_string *str) 59 and zend_char_has_nul_byte(const char *s, size_t known_length) 60* Added zend_enum_get_case_by_value() function, which provides an internal API 61 similiar to BackedEnum::from() and BackedEnum::tryFrom(). 62 63======================== 642. Build system changes 65======================== 66 67* The build system now requires PHP 7.4.0 at least. Previously PHP 7.1 was 68 required. 69* Unsupported libxml2 2.10.0 symbols are no longer exported on Windows. 70* Identifier names for namespaced functions generated from stub files through 71 gen_stub.php have been changed. This requires that namespaced functions 72 should be declared via the PHP_FUNCTION macro by using the fully qualified 73 function name (whereas each part is separated by "_") instead of just the 74 function name itself. 75 76======================== 773. Module changes 78======================== 79 80 a. ext/standard 81 - The PHP APIs string_natural_compare_function_ex(), 82 string_natural_case_compare_function(), and string_natural_compare_function() 83 have been removed. They always returned SUCCESS and were a wrapper around 84 strnatcmp_ex(). Use strnatcmp_ex() directly instead. 85 - The PHP API php_fgetcsv() now returns a HashTable* instead of having an in-out 86 zval parameter. 87 It now returns NULL on an empty line instead of [null]. 88 A new function php_bc_fgetcsv_empty_line() has been added to get a HashTable* which 89 represents [null]. 90 b. ext/pdo 91 - pdo_raise_impl_error()'s parameter sqlstate has been changed from 92 const char * to pdo_error_type (aka char [6]). 93 94======================== 954. OpCode changes 96======================== 97 98* The ZEND_INIT_FCALL opcode now asserts that the function exists in the symbol 99 table as the function's existence is checked at compile time. 100 For extensions modifying the function symbol table, setting 101 CG(compiler_options) |= ZEND_COMPILE_IGNORE_USER_FUNCTIONS | ZEND_COMPILE_IGNORE_INTERNAL_FUNCTIONS; 102 will produce ZEND_INIT_FCALL_BY_NAME opcodes instead which check for the 103 existence of the function at runtime. 104 105======================== 1065. SAPI changes 107======================== 108 109 * The signature of php_module_startup() has changed from 110 int php_module_startup(sapi_module_struct *sf, zend_module_entry *additional_modules, uint32_t num_additional_modules) 111 to 112 zend_result php_module_startup(sapi_module_struct *sf, zend_module_entry *additional_module) 113 as only one additional module was ever provided. 114
