Doc #78312 [Asn->Fbk]: Different results between 7.3.7 and 7.4

Edit report at https://bugs.php.net/bug.php?id=78312&edit=1 ID: 78312 Updated by: requinix@php.net Reported by: oleg at andreyev dot lv Summary: Different results between 7.3.7 and 7.4 -Status: Assigned +Status: Feedback Type: Documentation Problem Package: PCRE related Operating System: Linux PHP Version: 7.4Git-2019-07-19 (Git) Assigned To: sjon Block user comment: N Private report: N New Comment: It will be documented in the function's Changelog and the 7.4 migration guide. That is how these sorts of changes are always handled. Anyone blindly upgrading their codebase to 7.4, or any new version series, is shooting themselves in the foot. Is that acceptable? If not then what are you asking for to happen? Previous Comments: ------------------------------------------------------------------------ [2019-07-19 14:41:36] oleg at andreyev dot lv This is something that I would like to see highlighted because it can affect all templating engines who has some Lexers e.g.: Twig ------------------------------------------------------------------------ [2019-07-19 14:12:17] requinix@php.net What's more, this is mentioned by NEWS and UPGRADING so it's not like this change has been forgotten... ------------------------------------------------------------------------ [2019-07-19 12:59:00] sjon@php.net Actually the output in 7.4 seems to be correct as before the offset was completely missing. This was fixed in Bug #73948 also - the output in 7.4 actually matches the documentation better - don't you agree? ------------------------------------------------------------------------ [2019-07-19 12:48:22] danack@php.net To avoid confusion, on PHP <7.4 the output is: array(15) { [0]=> string(0) "" [1]=> string(0) "" [2]=> string(0) "" [3]=> string(0) "" [4]=> string(0) "" [5]=> string(0) "" [6]=> string(0) "" [7]=> string(0) "" [8]=> string(0) "" [9]=> string(0) "" [10]=> string(0) "" [11]=> string(0) "" [12]=> string(0) "" [13]=> string(0) "" [14]=> string(0) "" } Output on > 7.4 array(15) { [0]=> array(2) { [0]=> string(0) "" [1]=> int(-1) } [1]=> array(2) { [0]=> string(0) "" [1]=> int(-1) } [2]=> array(2) { [0]=> string(0) "" [1]=> int(-1) } [3]=> array(2) { [0]=> string(0) "" [1]=> int(-1) } [4]=> array(2) { [0]=> string(0) "" [1]=> int(-1) } [5]=> array(2) { [0]=> string(0) "" [1]=> int(-1) } [6]=> array(2) { [0]=> string(0) "" [1]=> int(-1) } [7]=> array(2) { [0]=> string(0) "" [1]=> int(-1) } [8]=> array(2) { [0]=> string(0) "" [1]=> int(-1) } [9]=> array(2) { [0]=> string(0) "" [1]=> int(-1) } [10]=> array(2) { [0]=> string(0) "" [1]=> int(-1) } [11]=> array(2) { [0]=> string(0) "" [1]=> int(-1) } [12]=> array(2) { [0]=> string(0) "" [1]=> int(-1) } [13]=> array(2) { [0]=> string(0) "" [1]=> int(-1) } [14]=> array(2) { [0]=> string(0) "" [1]=> int(-1) } } ------------------------------------------------------------------------ [2019-07-19 12:41:24] oleg at andreyev dot lv Description: ------------ When running preg_match_all on 7.3.7 and 7.4 getting different results on Test script: --------------- https://3v4l.org/lvdlR Expected result: ---------------- - Actual result: -------------- - ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=78312&edit=1