Bug #76434 [Csd->Nab]: implode sometimes ignores one array item

From: Date: Sun, 10 Jun 2018 13:48:24 +0000
Subject: Bug #76434 [Csd->Nab]: implode sometimes ignores one array item
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-215583@lists.php.net to get a copy of this message 
Edit report at https://bugs.php.net/bug.php?id=76434&edit=1

 ID:                 76434
 Updated by:         requinix@php.net
 Reported by:        ceeckels at mac dot com
 Summary:            implode sometimes ignores one array item
-Status:             Closed
+Status:             Not a bug
 Type:               Bug
 Package:            Arrays related
 Operating System:   MacOS, FreeBSD
 PHP Version:        7.1.18
 Block user comment: N
 Private report:     N



Previous Comments:
------------------------------------------------------------------------
[2018-06-10 10:52:48] ceeckels at mac dot com

The problem is not PHP-related. It is a problem wit Apple's Terminal.app. The string output by
the bash command

echo -e '12345678\t12345678\t12345678\t3\t4\t5\t6\t7\t8'

depends on the Terminal windows's width.

So I owe an apology to PHP's implode function.

Thanks to everybody. Bug should be closed.

------------------------------------------------------------------------
[2018-06-08 23:53:53] danack@php.net

Also, this has a very small chance of being a weird interaction between your terminal and the bytes.
Please could you run this to see what implode is actually doing.

function getRawCharacters($result) {
    $resultInHex = unpack('H*', $result);
    $resultInHex = $resultInHex[1];
    $resultSeparated = implode(', ', str_split($resultInHex, 2));
    return $resultSeparated;
}

$ar = [12345678, 12345678, 12345678, 3, 4, 5, 6, 7, 8];
$string = implode(chr(9), $ar);

echo getRawCharacters($string) . PHP_EOL;

------------------------------------------------------------------------
[2018-06-08 23:35:13] danack@php.net

I can't reproduce https://3v4l.org/kEBSX and it sounds
weird.

Please can you test again with opcache disabled, if it's currently enabled.

Also please try with all other extensions disabled.

------------------------------------------------------------------------
[2018-06-08 23:12:01] ceeckels at mac dot com

Description:
------------
No comment; just run the test script and notice that the array item 7 is missing in the result
string

Test script:
---------------
<?php

$ar = [12345678, 12345678, 12345678, 3, 4, 5, 6, 7, 8];
echo implode(chr(9), $ar), PHP_EOL;

?>


Expected result:
----------------
12345678	12345678	12345678	3	4	5	6	7	8

Actual result:
--------------
12345678	12345678	12345678	3	4	5	6	8


------------------------------------------------------------------------



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