Hello,
a small patch that allows using negative value for offset in $string{offset}
$string = "test";
$string{-1} -> last 't'
$string{-2} -> 's' and so on...
================<<
--- zend_execute.c Mon Jul 18 11:20:19 2005
+++ /home/val/src/php/php5.1/php-src/Zend/zend_execute.c Sat Jul 30 13:33:57 2005
@@ -1097,6 +1097,7 @@
result->str_offset.str = container;
PZVAL_LOCK(container);
result->str_offset.offset = dim->value.lval;
-
if (dim->value.lval < 0) result->str_offset.offset += container->value.str.len; result->var.ptr_ptr = NULL; if (type == BP_VAR_R || type == BP_VAR_IS) { AI_USE_PTR(result->var);
================<<
--
Best regards,
val mailto:val@vk.kiev.ua
val,
you dont clamp at the lower bound. suppose offset == -LONG_MAX
l0t3k
"val khokhlov" val@vk.kiev.ua wrote in message
news:446750995.20050730134023@vk.kiev.ua...
Hello,
a small patch that allows using negative value for offset in
$string{offset}
$string = "test";
$string{-1} -> last 't'
$string{-2} -> 's' and so on...================<<
--- zend_execute.c Mon Jul 18 11:20:19 2005
+++ /home/val/src/php/php5.1/php-src/Zend/zend_execute.c Sat Jul 30
13:33:57 2005
@@ -1097,6 +1097,7 @@
result->str_offset.str = container;
PZVAL_LOCK(container);
result->str_offset.offset =
dim->value.lval;
if (dim->value.lval < 0)result->str_offset.offset += container->value.str.len;
result->var.ptr_ptr = NULL;
if (type == BP_VAR_R || type ==
BP_VAR_IS) {
AI_USE_PTR(result->var);================<<
--
Best regards,
val mailto:val@vk.kiev.ua
cshmoove@bellsouth.net wrote:
val,
you dont clamp at the lower bound. suppose offset == -LONG_MAX
This would result in a negative offset value and the execution logic of
PHP will tell you that this is not a valid string offset....