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Bug #77784 mime_content_type result gets doubled for xlsx
Submitted: 2019-03-23 10:29 UTC Modified: 2019-04-17 15:42 UTC
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: dpoddubny at gmail dot com Assigned:
Status: Verified Package: Filesystem function related
PHP Version: 7.3.3 OS: linux
Private report: No CVE-ID: None
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 [2019-03-23 10:29 UTC] dpoddubny at gmail dot com
Hello. Starting from php 7.3.2 function mime_content_type doubles the result for xlsx files created in LibreOffice ( While php 7.3.1 works correctly.

Test script:
How to reproduce:
1. git clone

2. Build the image and see the bug:

docker build --no-cache --build-arg PHP_VER=7.3.2 .

Step 5/5 : RUN php -r "var_dump(mime_content_type('/test.xlsx'));"
 ---> Running in 71f6655ae0ed
string(130) "application/vnd.openxmlformats-officedocument.spreadsheetml.sheetapplication/vnd.openxmlformats-officedocument.spreadsheetml.sheet"

docker build --no-cache --build-arg PHP_VER=7.3.1 .

Step 5/5 : RUN php -r "var_dump(mime_content_type('/test.xlsx'));"
 ---> Running in 27e744a45920
string(65) "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"

Expected result:
mime_content_type('/test.xlsx') returns "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"

Actual result:
mime_content_type('/test.xlsx') returns "application/vnd.openxmlformats-officedocument.spreadsheetml.sheetapplication/vnd.openxmlformats-officedocument.spreadsheetml.sheet"


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 [2019-04-17 15:42 UTC]
-Status: Open +Status: Verified
 [2019-04-17 15:42 UTC]
I can reproduce this with the provided .xlsx, but not with
arbitrary LibreOffice .xlsx files.  The behavioral change is most
likely caused by the upgrade to 5.34[1].

[1] <;a=commit;h=d874d4a15c2e17a753d580691906c95e9153b823>
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Last updated: Fri Apr 19 13:01:26 2019 UTC