#35470 [Csd]: Assigning global using variable name from array doesn't function
| From: | prgallier at yahoo dot com | Date: | Wed, 30 Nov 2005 11:46:55 +0000 |
| Subject: | #35470 [Csd]: Assigning global using variable name from array doesn't function | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-89448@lists.php.net to get a copy of this message | ||
ID: 35470
User updated by: prgallier at yahoo dot com
Reported By: prgallier at yahoo dot com
Status: Closed
Bug Type: Scripting Engine problem
Operating System: *
PHP Version: 5CVS-2005-11-29 (cvs)
Assigned To: dmitry
New Comment:
Tested and working great here. Kudos to Dmitry!
Previous Comments:
------------------------------------------------------------------------
[2005-11-30 11:10:53] dmitry@php.net
Fixed in CVS HEAD and PHP_5_1.
------------------------------------------------------------------------
[2005-11-29 20:11:25] tony2001@php.net
<?php
function dotest()
{
$array = array(array("test", "blah"),array("test",
"blah"));
$i = 0;
while ($row = $array[$i++])
{
global ${$row[0]};
${$row[0]} = $row[1];
}
}
dotest();
?>
Valgrind shows several errors:
==3742== Invalid read of size 4
==3742== at 0x823AAEA: zend_fetch_dimension_address
(zend_execute.c:1092)
==3742== by 0x826DEE0: ZEND_FETCH_DIM_R_SPEC_CV_CONST_HANDLER
(zend_vm_execute.h:20390)
==3742== by 0x823B348: execute (zend_vm_execute.h:88)
==3742== by 0x823B7A9: zend_do_fcall_common_helper_SPEC
(zend_vm_execute.h:222)
==3742== by 0x823E294: ZEND_DO_FCALL_SPEC_CONST_HANDLER
(zend_vm_execute.h:1578)
==3742== by 0x823B348: execute (zend_vm_execute.h:88)
==3742== by 0x8214E75: zend_execute_scripts (zend.c:1090)
==3742== by 0x81D43AD: php_execute_script (main.c:1704)
==3742== by 0x828025D: main (php_cli.c:1039)
etc.
------------------------------------------------------------------------
[2005-11-29 19:58:50] prgallier at yahoo dot com
The following generates a segfault on my system:
function dotest()
{
$link = mysql_connect("localhost","test","test");
mysql_select_db("test");
mysql_query("CREATE TABLE config (num smallint(5) unsigned NOT NULL
auto_increment, conf varchar(20) NOT NULL default '')");
mysql_query("INSERT INTO config (conf,type) VALUES('Test1','33')");
$result = mysql_query("SELECT conf,value FROM config");
while ($row = mysql_fetch_row($result))
{
global ${$row[0]};
${$row[0]} = $row[1];
}
mysql_free_result($result);
}
dotest();
echo "Test: $test<br>\n";
------------------------------------------------------------------------
[2005-11-29 13:09:49] sniper@php.net
Dmitry, can you check this out please.
------------------------------------------------------------------------
[2005-11-29 11:33:26] prgallier at yahoo dot com
Oops...the expected and actual result fields are switched.
------------------------------------------------------------------------
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the rest of the comments, please view the bug report online at
http://bugs.php.net/35470
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