Bug #66001 [Opn]: Problem with SplFileObject::seek()
| From: | miichal dot kozlowski at gmail dot com | Date: | Thu, 30 Jun 2016 12:29:49 +0000 |
| Subject: | Bug #66001 [Opn]: Problem with SplFileObject::seek() | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-201938@lists.php.net to get a copy of this message | ||
Edit report at https://bugs.php.net/bug.php?id=66001&edit=1
ID: 66001
User updated by: miichal dot kozlowski at gmail dot com
Reported by: miichal dot kozlowski at gmail dot com
Summary: Problem with SplFileObject::seek()
Status: Open
Type: Bug
Package: SPL related
Operating System: Win & Unix
PHP Version: Irrelevant
Block user comment: N
Private report: N
New Comment:
Yes you are right,
the problem is when you are working on a file and you wish to rerun the program starting from the
first line. In such case you are not able to use SplFileObject::current().
That was my case, I wrote a pice of script which needed to rerun the same file from the place which
you marked.
Previous Comments:
------------------------------------------------------------------------
[2016-06-29 17:54:54] cmb@php.net
After calling SplFileObject::seek() the following line is already
read, and available via SplFileObject::current(), see example
#1[1].
However, given that your first example works, the behavior appears
to be indeed inconsistent. By the way, the issue is not
particularly related to ::fgetcsv(); fgets() shows the same
behavior.
[1] <http://php.net/manual/en/splfileobject.seek.php#refsect1-splfileobject.seek-examples>
------------------------------------------------------------------------
[2013-10-30 12:10:10] miichal dot kozlowski at gmail dot com
Description:
------------
Hi,
Example 1 shows we set $file->seek(0) and it will return 3 rows:
Array
(
[0] => 0DATA
[1] => 1 St 1 Av
[2] =>
[3] => test
[4] => FL
[5] => 34221
)
Array
(
[0] => 1DATA
[1] => 1 St 1 Av
[2] =>
[3] => Test
[4] => FL
[5] => 34221
)
Array
(
[0] => 2DATA
[1] => 1 St 1 Av
[2] =>
[3] => Test
[4] => FL
[5] => 34221
)
Example 2 shows if we set $file->seek(1) then we are expecting to get 2 rows:
Array
(
[0] => 1DATA
[1] => 1 St 1 Av
[2] =>
[3] => Test
[4] => FL
[5] => 34221
)
Array
(
[0] => 2DATA
[1] => 1 St 1 Av
[2] =>
[3] => Test
[4] => FL
[5] => 34221
)
,but we received 1.
Array
(
[0] => 2DATA
[1] => 1 St 1 Av
[2] =>
[3] => Test
[4] => FL
[5] => 34221
)
Test script:
---------------
<?php
file_put_contents('file.csv', '"0DATA";"1 St 1
Av";"";"test";"FL";"34221"' . PHP_EOL .'
"1DATA";"1 St 1
Av";"";"Test";"FL";"34221"' . PHP_EOL .'
"2DATA";"1 St 1
Av";"";"Test";"FL";"34221"');
//example 1
$file = new SplFileObject('file.csv');
$file->seek(0);
while(!$file->eof()) {
print_r($file->fgetcsv(";"));
}
echo '---' . PHP_EOL;
//example 2
$file = new SplFileObject('file.csv');
$file->seek(1);
while(!$file->eof()) {
print_r($file->fgetcsv(";"));
}
Expected result:
----------------
Array
(
[0] => 0DATA
[1] => 1 St 1 Av
[2] =>
[3] => test
[4] => FL
[5] => 34221
)
Array
(
[0] => 1DATA
[1] => 1 St 1 Av
[2] =>
[3] => Test
[4] => FL
[5] => 34221
)
Array
(
[0] => 2DATA
[1] => 1 St 1 Av
[2] =>
[3] => Test
[4] => FL
[5] => 34221
)
example 2
Array
(
[0] => 1DATA
[1] => 1 St 1 Av
[2] =>
[3] => Test
[4] => FL
[5] => 34221
)
Array
(
[0] => 2DATA
[1] => 1 St 1 Av
[2] =>
[3] => Test
[4] => FL
[5] => 34221
)
Actual result:
--------------
Array
(
[0] => 0DATA
[1] => 1 St 1 Av
[2] =>
[3] => test
[4] => FL
[5] => 34221
)
Array
(
[0] => 1DATA
[1] => 1 St 1 Av
[2] =>
[3] => Test
[4] => FL
[5] => 34221
)
Array
(
[0] => 2DATA
[1] => 1 St 1 Av
[2] =>
[3] => Test
[4] => FL
[5] => 34221
)
example 2
Array
(
[0] => 2DATA
[1] => 1 St 1 Av
[2] =>
[3] => Test
[4] => FL
[5] => 34221
)
------------------------------------------------------------------------
--
Edit this bug report at https://bugs.php.net/bug.php?id=66001&edit=1