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Bug #12768 wordwrap crashes with 4 parameters and width=0
Submitted: 2001-08-15 12:00 UTC Modified: 2002-01-04 14:49 UTC
From: marc dot pohl at wwf-gruppe dot de Assigned: elixer
Status: Closed Package: Reproducible crash
PHP Version: 4.0.6 OS: Linux
Private report: No CVE-ID:
 [2001-08-15 12:00 UTC] marc dot pohl at wwf-gruppe dot de
hi,

i discovered a small bug in wordwrap. if you call this function with 4 parameters and a width of 0 your php-script will crash/timeout.

<pre>
<?php
 $string = "the quick brown fox ...";
 echo wordwrap($string, 0, "\n", 1),"\n";
?>
</pre>

here is an inconsistency with the 2-parameter version, which returns all words separated by \n in this case

regards marc


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 [2002-01-04 14:49 UTC] jimw@php.net
forcing a cut with a zero width doesn't make any sense. but segfault fixed in cvs and this case now issues a warning. (but also found and fixed a related crash if a multi-character break was used with a zero width.)
 
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