#21600 [Ver]: assign by reference function call changes variable contents

ID: 21600 Updated by: derick@php.net Reported By: jhpacker@yahoo.com Status: Verified -Bug Type: Variables related +Bug Type: Scripting Engine problem Operating System: Redhat 8 PHP Version: 4.3.0 New Comment: 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 Previous Comments: ------------------------------------------------------------------------ [2003-01-12 15:56:50] moriyoshi@php.net Verified with HEAD(ZE2) and PHP_4_3(ZE1). The provided script causes segmentation fault. ------------------------------------------------------------------------ [2003-01-12 15:07:10] jhpacker@yahoo.com 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. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=21600&edit=1