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Bug #65396 Separators at the beginning of string are also exploded
Submitted: 2013-08-05 23:39 UTC Modified: 2013-08-10 22:23 UTC
From: empaingeo at hotmail dot com Assigned:
Status: Not a bug Package: Strings related
PHP Version: Irrelevant OS: Windows Vista
Private report: No CVE-ID: None
 [2013-08-05 23:39 UTC] empaingeo at hotmail dot com
Description:
------------
---
From manual page: http://www.php.net/function.explode#refsect1-function.explode-returnvalues
---

Hi, to reproduce the problem :



Test script:
---------------
<?php
	echo "<pre>";
	echo print_r(explode(' ', "    test1 test2"));
	echo "</pre>";
?>

Expected result:
----------------
Array
(
    [0] => test1
    [1] => test2
)
1

Actual result:
--------------
Array
(
    [0] => 
    [1] => 
    [2] => 
    [3] => 
    [4] => test1
    [5] => test2
)
1

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 [2013-08-07 20:36 UTC] mail+php at requinix dot net
Totally intended and often desirable behavior.

If you don't want those then trim() the spaces off first, or if you're worried 
about multiple spaces inside the string too ("test1   test2") then array_filter() 
the result.
 [2013-08-07 21:42 UTC] empaingeo at hotmail dot com
Hi, thanks for the reply. I will follow your advice.

Best regards.
 [2013-08-10 22:23 UTC] ab@php.net
-Status: Open +Status: Not a bug
 [2013-08-10 22:23 UTC] ab@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

or additionally to trim, preg_replace(',\s+,', ' ', $str)
 
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