ID: 14304
Updated by: zak
Reported By: [EMAIL PROTECTED]
Old Summary: str_replace unable to match search string
Old Status: Open
Status: Feedback
Bug Type: Regexps related
Operating System: Linux php3-2 2.4.7 #1 Thu Aug 9
PHP Version: 4.0.6
New Comment:
Thanks for the additional information.
I tested the code snippets provided on PHP 4.1.0 - they
all seem to operate as expected. The input of both
snippets (when fed to your original function) returns
'<br><i></i></td>'
The regular expressions provided later seem to work as
well.
The top snippet captures:
array(10) {
[0]=>
string(24) "<phpdig:ignore_message/>"
[1]=>
string(14) "ignore_message"
[2]=>
bool(false)
[3]=>
bool(false)
[4]=>
bool(false)
[5]=>
bool(false)
[6]=>
bool(false)
[7]=>
bool(false)
[8]=>
bool(false)
[9]=>
bool(false)
}
...and the bottom snippet captures:
array(10) {
[0]=>
string(31) "<phpdig:ignore_common_message/>"
[1]=>
string(21) "ignore_common_message"
[2]=>
bool(false)
[3]=>
bool(false)
[4]=>
bool(false)
[5]=>
bool(false)
[6]=>
bool(false)
[7]=>
bool(false)
[8]=>
bool(false)
[9]=>
bool(false)
}
Is this the output that you get with PHP 4.0.6? Please let
me know!
Previous Comments:
------------------------------------------------------------------------
[2001-12-09 08:08:18] [EMAIL PROTECTED]
Changed bug type to Regexps
------------------------------------------------------------------------
[2001-12-09 08:00:37] [EMAIL PROTECTED]
I isolate the bug :
this works :
eregi('<phpdig:([a-z0-9_]*)[[:blank:]]*(src=)*["\']*([a-z0-9./_-]+)*["\']*[[:blank:]]*/>','<br><i><phpdig:ignore_message/></i></td>',$regs);
this doesn't (php loops) :
eregi('<phpdig:([a-z0-9_]*)[[:blank:]]*(src=)*["\']*([a-z0-9./_-]+)*["\']*[[:blank:]]*/>','<br><i><phpdig:ignore_common_message/></i></td>',$regs);
------------------------------------------------------------------------
[2001-12-01 23:43:55] [EMAIL PROTECTED]
Please reduce this to a simpler test case. If there is a
bug in str_replace, then it should be reproduceable with a
simple one line test. Logging how the str_replace
functions are called should let you find the culprit.
A line like this after the function calls are made should
do the trick.
error_log ("$line =
str_replace({$regs[0]},$replacement,$line);\n", 3,
'./str_rep_log');
Good Luck!
------------------------------------------------------------------------
[2001-11-30 13:45:17] [EMAIL PROTECTED]
Sorry, i forgot :
All the application in dowloadable at : http://phpdig.toiletoine.net/phpdig_1_4_3.zip
------------------------------------------------------------------------
[2001-11-30 13:40:34] [EMAIL PROTECTED]
Summary :
A function works well on php 4.0.5 and enters an infinite loop on php 4.0.6.
Function entering in infinite loop :
The purpose of this function is to parse a template containing some tags, line by
line, and replace them by values contained in the $t_strings array.
The input can be :
<td bgcolor="#FFCC00" colspan="2"><phpdig:previous_link
src='./tpl_img/left.gif'/><phpdig:pages_bar/><phpdig:next_link
src='./tpl_img/right.gif'/></td>
i think the str_replace() function don't replace anything ; the while statment stays
always true, etc...
function parse_phpdig_tags($line,$t_strings)
{
while(eregi('<phpdig:([a-z0-9_]*)[[:blank:]]*(src=)*["\']*([a-z0-9./_-]+)*["\']*[[:blank:]]*/>',$line,$regs))
{
//links with images
if ($regs[2])
{
if ($regs[3] && $t_strings[$regs[1]])
{
if (ereg('^http',$t_strings[$regs[1]]))
$target = ' target="_blank"';
else
$target = '';
$replacement = '<A
href="'.$t_strings[$regs[1]].'"'.$target.'><img src="'.$regs[3].'" border="0"
align="bottom"></a>';
}
else
{
$replacement = '';
}
$line = str_replace($regs[0],$replacement,$line);
}
else
{
$line = str_replace($regs[0],$t_strings[$regs[1]],$line);
}
}
return $line;
}
Configuration not working (php 4.0.6) :
'../configure' '--prefix=/usr' '--prefix=/usr' '--with-regex=system'
'--enable-force-cgi-redirect' '--with-config-file-path=/etc/php4/cgi'
'--disable-rpath' '--disable-pear' '--enable-memory-limit' '--enable-calendar'
'--enable-bcmath' '--with-bz2' '--enable-ctype' '--with-db2' '--with-ndbm'
'--enable-exif' '--enable-filepro' '--with-gettext' '--enable-track-vars'
'--enable-trans-sid' '--disable-debug' '--disable-static' '--with-mm'
'--with-pcre-regex=/usr' '--enable-shmop' '--enable-sockets' '--with-xml=/usr'
'--with-expat-dir=/usr' '--with-zlib' '--enable-email' '--disable-posix'
'--without-mysql' '--without-sybase-ct'
Configuration working (php 4.0.5) :
'./configure' '--with-apxs=/usr/local/apache/bin/apxs' '--with-pgsql=/usr/local/pgsql'
'--with-ldap' '--with-openssl' '--with-domxml' '--with-bcmath' '--enable-track-vars'
'--with-gd=../gd-1.8.4' '--enable-freetype-4bit-antialias-hack' '--with-mysql'
'--with-jpeg-dir=../jpeg-6b' '--with-png-dir=../libpng-1.0.12'
'--with-freetype-dir=../freetype-2.0.4' '--with-zlib-dir=../zlib'
'--with-sablot=SHARED' '--enable-bcmath' '--enable-ftp' '--enable-sockets'
'--enable-magic-quotes' '--enable-versioning'
------------------------------------------------------------------------
Edit this bug report at http://bugs.php.net/?id=14304&edit=1
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