Silently casting an empty string, null or false into an object by adding a property
is pretty non-intuitive. If the same value was 1 or true you get a warning and it halts.

Since we can'

Silently casting an empty string, null or false into an object by adding a property
is pretty non-intuitive. If the same value was 1 or true you get a warning and it halts.

Since we can't break BC completely (yet) lets bump this from E_STRICT.

Also added a new section to UPGRADING for engine changes.

<?php
$x = '';
// $x = null;
// $x = false;
$x->baz = 1;
var_dump($x);

$y = 1;
$y->baz = 1;
var_dump($y);

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- Removed unused variable

Removed support for break/continue $var syntax

reduced size of temp_variariable

Simplified foreach() handling, we don't have to inctrement/decrement refcount twice

- Strip out the typehint *checks* only. They are still parsed, and they are
still accessible through the reflection API.

marked char pointer arguments as const in lots of
places where strings pointed to are not modified
to prevent compiler warnings about discarded qualifiers ...

Fixed bug #51008 (Zend/tests/bug45877.phpt fails)

Prevented crash in GC because of incorrect reference counting

Prevented crash in GC because of incorrect reference counting

- Improved memory usage
. zend_function.pass_rest_by_reference is replaced by
ZEND_ACC_PASS_REST_BY_REFERENCE in zend_function.fn_flags
. zend_function.return_reference is replace

- Improved memory usage
. zend_function.pass_rest_by_reference is replaced by
ZEND_ACC_PASS_REST_BY_REFERENCE in zend_function.fn_flags
. zend_function.return_reference is replaced by ZEND_ACC_RETURN_REFERENCE
in zend_function.fn_flags
. zend_arg_info.required_num_args removed. it was needed only for internal
functions. Now the first arg_info for internal function (which has special
meaning) is represented by zend_internal_function_info structure.
. zend_op_array.size, size_var, size_literal, current_brk_cont,
backpatch_count moved into CG(context), because they are used only during
compilation.
. zend_op_array.start_op is moved into EG(start_op), because it's used
only for 'interactive' execution of single top-level op-array.
. zend_op_array.done_pass_two is replaced by ZEND_ACC_DONE_PASS_TWO in
zend_op_array.fn_flags.
. op_array.vars array is trimmed (reallocated) during pass_two.
. zend_class_entry.constants_updated is replaced by
ZEND_ACC_CONSTANTS_UPDATED in zend_class_entry.ce_flags
. the size of zend_class_entry is reduced by sharing the same memory space
by different information for internal and user classes.
See zend_class_inttry.info union.

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Optimization of ASSIGN instruction

Optimization

ZEND_FETCH_*_R operations simplified and can't be used with EXT_TYPE_UNUSED flag any more. Thit is very rare and useless case. ZEND_FREE might be required after them instead.

Simplified string offset reading

Removed redundant code

Added support for numeric & scalar type hint as defined within
http://wiki.php.net/rfc/typecheckingstrictandweak RFC

- Added scalar typehinting.

Add DTrace probes

Removed unused function

WS

Fixed bug #48781 (Cyclical garbage collector memory leak)

Fixed bug #48781 (Cyclical garbage collector memory leak)

Added a number of small performance tweaks and optimizations
. ZEND_RECV now always has IS_CV as its result
. ZEND_CATCH now has to be used only with constant class names
. ZEND_FET

Added a number of small performance tweaks and optimizations
. ZEND_RECV now always has IS_CV as its result
. ZEND_CATCH now has to be used only with constant class names
. ZEND_FETCH_DIM_? may fetch array and dimension operans in a different order

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Added concept of interned strings. All strings constants known at compile time are allocated in a single copy and never changed.