Bug #75611 [Com]: array_slice BC breaking
Edit report at https://bugs.php.net/bug.php?id=75611&edit=1
ID: 75611
Comment by: peehaa@php.net
Reported by: nodex at icloud dot com
Summary: array_slice BC breaking
Status: Not a bug
Type: Bug
Package: Arrays related
Operating System: MacOs and Ubuntu
PHP Version: 7.1.12
Block user comment: N
Private report: N
New Comment:
As you can see on 3v4l your repro script has the exact same output from PHP 4.2 all the way to 7.2:
https://3v4l.org/tPsel
Previous Comments:
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[2017-12-01 15:31:23] nodex at icloud dot com
Hi. Thanks for your comment.
In php 5.6 it returns the entire array.
I don't think you have understaood what I meant so I'm sorry for that.
I am not sure how to explain it in a better way?
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[2017-12-01 15:30:04] peehaa@php.net
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to
report
a bug at http://bugs.php.net/how-to-report.php
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[2017-12-01 15:29:07] peehaa@php.net
Also is in the docs:
> If the offset is larger than the size of the array then returns an empty array.
Also it seems like you are confusing the length (3rd param) with the offset (2nd param)
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[2017-12-01 15:25:57] peehaa@php.net
Always been like that: https://3v4l.org/tPsel
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[2017-12-01 15:22:08] nodex at icloud dot com
Description:
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When using array_slice on a smaller array, PHP 7.1.4 (untested newer versions) returns a blank array
if the size of the array is less than the $length parameter of array_slice
In php 5.6 this was not the case, the function simply returned the entire array if it was shorter.
Surely this must be a bug or are we now meant to count the array to check it's the right size
before calling array_slice?
Test script:
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# Basic reproduction test
$array = range(0,10);
$slice = array_slice($array,12); // same with and without the offset parameter!
print_r($slice); // Empty!
$array = range(0.5);
$slice = array_slice($array,3);
print_r($slice); // As expected 3 elements!
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Edit this bug report at https://bugs.php.net/bug.php?id=75611&edit=1
Thread (6 messages)