ID: 21600
Comment by: [EMAIL PROTECTED]
Reported By: [EMAIL PROTECTED]
Status: Critical
Bug Type: Scripting Engine problem
Operating System: Redhat 7.3, 8
PHP Version: 4.3.0, 5.0.0
New Comment:
Here is a simular problem - it seem to be a problem with referencing to
values from functions that not themselfs return reference.
<?php
class Person {
var $name;
function Person($name) {
$this->name = $name;
$wiefewfjwefjwefwef =& $this->getName(); // <-- this line
destroys $this->name and eventually crashes apache+php
}
function /*&*/ getName() {
return $this->name;
}
}
$kent =& new Person('Kent');
echo '<pre>'; print_r($kent); echo '</pre>';
echo '<p><b>PersonName: "' . $kent->getName() . '"</b></p>';
?>
Previous Comments:
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[2003-01-14 00:52:07] [EMAIL PROTECTED]
update version
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[2003-01-13 19:42:44] [EMAIL PROTECTED]
I'm marking this critical because the provided script works fine on the
previous released versions.
------------------------------------------------------------------------
[2003-01-13 01:21:08] [EMAIL PROTECTED]
backtrace (with php-5.0.0-dev):
#0 0x40749e49 in __sbrk (increment=1515880448) at
../sysdeps/generic/sbrk.c:33
#1 0x406e9d3c in __default_morecore (increment=1515880448)
at ../sysdeps/generic/morecore.c:47
#2 0x406e676d in chunk_alloc (ar_ptr=0x40798520, nb=1515878480)
at malloc.c:2583
#3 0x406e60bc in __libc_malloc (bytes=1515878476) at malloc.c:2817
#4 0x08256b63 in zend_mm_add_memory_block (heap=0x8333748,
block_size=1515878476) at
/dat/dev/php/php-5.0.0dev/Zend/zend_mm.c:143
#5 0x08256de6 in zend_mm_alloc (heap=0x8333748, size=1515878448)
at /dat/dev/php/php-5.0.0dev/Zend/zend_mm.c:236
#6 0x08256e0e in zend_mm_alloc (heap=0x8333748, size=1515878448)
at /dat/dev/php/php-5.0.0dev/Zend/zend_mm.c:240
#7 0x08256e0e in zend_mm_alloc (heap=0x8333748, size=1515878448)
at /dat/dev/php/php-5.0.0dev/Zend/zend_mm.c:240
#8 0x08256e0e in zend_mm_alloc (heap=0x8333748, size=1515878448)
at /dat/dev/php/php-5.0.0dev/Zend/zend_mm.c:240
#9 0x08256e0e in zend_mm_alloc (heap=0x8333748, size=1515878448)
at /dat/dev/php/php-5.0.0dev/Zend/zend_mm.c:240
#10 0x08256e0e in zend_mm_alloc (heap=0x8333748, size=1515878448)
at /dat/dev/php/php-5.0.0dev/Zend/zend_mm.c:240
#11 0x08256e0e in zend_mm_alloc (heap=0x8333748, size=1515878448)
at /dat/dev/php/php-5.0.0dev/Zend/zend_mm.c:240
#12 0x08256e0e in zend_mm_alloc (heap=0x8333748, size=1515878448)
(last frame continues atleast 15.000 times)
Derick
------------------------------------------------------------------------
[2003-01-12 15:56:50] [EMAIL PROTECTED]
Verified with HEAD(ZE2) and PHP_4_3(ZE1).
The provided script causes segmentation fault.
------------------------------------------------------------------------
[2003-01-12 15:07:10] [EMAIL PROTECTED]
under 4.3.0 with apache 2.0.40 I see this strange behavior with
aliasing:
$foo = "Philip Johnson's \"Glass House\" remains one of the most famous
residences in the world.";
$foo =& bar($foo);
print $foo;
function bar($text){
return $text;
}
outputs: Philip Johnson's "Glass House" remains one of the most famous
residences in the worlh
This didn't happen under 4.2.3. Although really this was a mistake on
my part (I meant to do $foo = bar($foo)) it seems like strange behavior
nonetheless.
It's also strange to me that if I change
return $text;
to
return "$text";
it works as I would expect.
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--
Edit this bug report at http://bugs.php.net/?id=21600&edit=1
