mirror of
https://github.com/php/php-src.git
synced 2026-03-24 00:02:20 +01:00
540fd6e96b
This avoids duplicating the intermediate strings, by transferring
ownership.
It's hard to measure the improvement in a reliable way, as we have to
operate on the same node. The following benchmark shows a nice
improvement (although not perfect as a benchmark):
```php
<?php
$dom = new DOMDocument;
$dom->loadXML('<root>testabcdef</root>');
$text = $dom->documentElement->firstChild;
for ($i = 0; $i < 1000000; $i++) {
$text2 = clone $text;
$text2->splitText(5);
}
```
Only tested on my desktop i7-4790:
```
Benchmark 1: ./sapi/cli/php x.php
Time (mean ± σ): 284.1 ms ± 2.8 ms [User: 280.0 ms, System: 3.0 ms]
Range (min … max): 281.4 ms … 291.3 ms 10 runs
Benchmark 2: ./sapi/cli/php_old x.php
Time (mean ± σ): 314.0 ms ± 7.8 ms [User: 309.2 ms, System: 2.9 ms]
Range (min … max): 306.5 ms … 328.0 ms 10 runs
Summary
./sapi/cli/php x.php ran
1.11 ± 0.03 times faster than ./sapi/cli/php_old x.php
```
125 lines
3.8 KiB
Plaintext
125 lines
3.8 KiB
Plaintext
PHP 8.6 UPGRADE NOTES
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1. Backward Incompatible Changes
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2. New Features
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3. Changes in SAPI modules
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4. Deprecated Functionality
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5. Changed Functions
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6. New Functions
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7. New Classes and Interfaces
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8. Removed Extensions and SAPIs
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9. Other Changes to Extensions
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10. New Global Constants
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11. Changes to INI File Handling
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12. Windows Support
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13. Other Changes
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14. Performance Improvements
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========================================
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1. Backward Incompatible Changes
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========================================
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- Phar:
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. Invalid values now throw in Phar::mungServer() instead of being silently
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ignored.
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========================================
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2. New Features
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========================================
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- Core:
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. It is now possible to use reference assign on WeakMap without the key
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needing to be present beforehand.
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- Intl:
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. Added IntlNumberRangeFormatter class to format an interval of two numbers with a given skeleton, locale, IntlNumberRangeFormatter::COLLAPSE_AUTO, IntlNumberRangeFormatter::COLLAPSE_NONE, IntlNumberRangeFormatter::COLLAPSE_UNIT, IntlNumberRangeFormatter::COLLAPSE_ALL collapse and
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IntlNumberRangeFormatter::IDENTITY_FALLBACK_SINGLE_VALUE, IntlNumberRangeFormatter::IDENTITY_FALLBACK_APPROXIMATELY_OR_SINGLE_VALUE, IntlNumberRangeFormatter::IDENTITY_FALLBACK_APPROXIMATELY and
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IntlNumberRangeFormatter::IDENTITY_FALLBACK_RANGE identity fallbacks.
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It is supported from icu 63.
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- Streams:
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. Added stream socket context option so_reuseaddr that allows disabling
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address reuse (SO_REUSEADDR) and explicitly uses SO_EXCLUSIVEADDRUSE on
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Windows.
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========================================
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3. Changes in SAPI modules
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========================================
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========================================
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4. Deprecated Functionality
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========================================
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========================================
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5. Changed Functions
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========================================
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- Phar:
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. Phar::mungServer() now supports reference values.
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- Zip:
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. ZipArchive::extractTo now raises a TypeError for the
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files argument if one or more of the entries is not
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a string.
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========================================
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6. New Functions
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========================================
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========================================
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7. New Classes and Interfaces
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========================================
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========================================
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8. Removed Extensions and SAPIs
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========================================
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========================================
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9. Other Changes to Extensions
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========================================
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- Hash:
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. The bundled version of xxHash was upgraded to 0.8.2.
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========================================
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10. New Global Constants
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========================================
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========================================
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11. Changes to INI File Handling
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========================================
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- Mysqli:
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. mysqli.default_port now checks the validity of the value which should be
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between 0 and 65535 included.
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- Opcache:
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. opcache.jit_debug accepts a new flag: ZEND_JIT_DEBUG_TRACE_EXIT_INFO_SRC.
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When used along with ZEND_JIT_DEBUG_TRACE_EXIT_INFO, the source of exit
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points is printed in exit info output, in debug builds.
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========================================
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12. Windows Support
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========================================
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========================================
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13. Other Changes
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========================================
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========================================
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14. Performance Improvements
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========================================
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- Core:
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. `printf()` using only `%s` and `%d` will be compiled into the equivalent
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string interpolation, avoiding the overhead of a function call and repeatedly
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parsing the format string.
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. Arguments are now passed more efficiently to known constructors (e.g. when
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using new self()).
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- DOM:
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. Made splitText() faster and consume less memory.
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- JSON:
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. Improve performance of encoding arrays and objects.
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