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  [2020-10-23 14:25 UTC] vicreal at yandex dot ru
 Description: ------------ Affect named capture groups when duplicate names are enabled (?J) In 7.4.10 named capture group always returns the content captured in last alternative, no matter which of the alternatives matched. In 7.4 this issue https://bugs.php.net/bug.php?id=79257 was fixed only for PREG_SET_ORDER mode, but in PREG_PATTERN_ORDER mode this bug still has a place. Сhecked in version 7.4.10 Test script: --------------- preg_match_all('/(?J)(?:(?<g>foo)|(?<g>bar))(?<h>baz)/', 'foobaz', $matches, PREG_PATTERN_ORDER); var_dump($matches); Expected result: ---------------- Array ( [0] => Array ( [0] => "foobaz" ) [g] => Array ( [0] => "foo" ) [1] => Array ( [0] => "foo" ) [2] => Array ( [0] => "" ) [h] => Array ( [0] => "baz" ) [3] => Array ( [0] => "baz" ) ) Actual result: -------------- Array ( [0] => Array ( [0] => "foobaz" ) [g] => Array ( [0] => "" ) [1] => Array ( [0] => "foo" ) [2] => Array ( [0] => "" ) [h] => Array ( [0] => "baz" ) [3] => Array ( [0] => "baz" ) ) PatchesPull RequestsHistoryAllCommentsChangesGit/SVN commits             | |||||||||||||||||||||||||||||||||||||
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Another example: preg_match_all('/(?J)<(?<CHAR>\d+)>|<(?<CHAR>\w+)>/u', '1 <01> 2 <PP> 3', $matches, PREG_PATTERN_ORDER); Actual result: -------------- Array ( [0] => Array ( [0] => "<01>" [1] => "<PP>" ) [CHAR] => Array ( [0] => "" // must be "01" [1] => "PP" ) [1] => Array ( [0] => "01" [1] => "" ) [2] => Array ( [0] => "" [1] => "PP" ) ) Сhecked in version 7.4.10