Fix bug #79447

Partially reverts 846b6479537a112d1ded725e6484e46462048b35: instead of
throwing, this skips uninitialized typed properties when serializing objects.

This makes se

Fix bug #79447

Partially reverts 846b6479537a112d1ded725e6484e46462048b35: instead of
throwing, this skips uninitialized typed properties when serializing objects.

This makes serialize with __sleep() behave the same as serialize()
without __sleep().

As in the non-__sleep() case, unserialize(serialize($x)) identity
may not be preserved due to replacement of uninitialized/unset
properties with default values. Fixing this will require changes to
the serialization format.

Closes GH-5396.

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Skip non-existing properties returned by __sleep()

Improve some TypeError and ValueError messages

Closes GH-5377

Use serialize_precision for var_dump()

var_dump() is debugging functionality, so it should print
floating-point numbers accurately. We do this by switching
to serialize_precision, wh

Use serialize_precision for var_dump()

var_dump() is debugging functionality, so it should print
floating-point numbers accurately. We do this by switching
to serialize_precision, which (by default) will print with
as much precision as necessary to preserve the exact value
of the float.

This also affects debug_zval_dump().

Closes GH-5172.

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var_dump(): Don't skip recursion detection on first level

This is confusing. The current output doesn't make it clear that
we're in fact recursing to the top-level structure.

Cl

var_dump(): Don't skip recursion detection on first level

This is confusing. The current output doesn't make it clear that
we're in fact recursing to the top-level structure.

Closes GH-5171.

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Apply tidy formatting

Mostly reindent PHP scripts to spaces.

Merge branch 'PHP-7.4'

* PHP-7.4:
Throw Error when referencing uninit typed prop in __sleep

Throw Error when referencing uninit typed prop in __sleep

Previously this generated a notice, but would likely generate an
Error when unserializing.

Now we treat it with the sam

Throw Error when referencing uninit typed prop in __sleep

Previously this generated a notice, but would likely generate an
Error when unserializing.

Now we treat it with the same distinction as direct property
accesses, i.e. referencing an unset/undefined normal property
stays a notice, while a typed property becomes an Error exception.

This fixed bug #79002.

Closes GH-5050.

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Use RETURN_THROWS() in various places

Merge branch 'PHP-7.4'

* PHP-7.4:
Populate hashtable of __sleep() properties
Deref names returned by __sleep()
Extract php_var_serialize_nested_data() function

Populate hashtable of __sleep() properties

Instead of populating a hashtable of property names and then
directly serializing.

This has the advantage of a) detecting duplicate pr

Populate hashtable of __sleep() properties

Instead of populating a hashtable of property names and then
directly serializing.

This has the advantage of a) detecting duplicate properties more
precisely and b) gives us the ability to discard values without
rewriting the serialization string after the fact for GH-5027.

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Deref names returned by __sleep()

Extract php_var_serialize_nested_data() function

And split code-paths for arrays and objects based on it.

Return empty string instead of NULL in serialize().

Modifiy its return type accordingly and arginfo.

Promote warning to exception in unserialize()

Merge branch 'PHP-7.4'

* PHP-7.4:
Fix #77638: var_export'ing certain class instances segfaults

Merge branch 'PHP-7.3' into PHP-7.4

* PHP-7.3:
Fix #77638: var_export'ing certain class instances segfaults

Fix #77638: var_export'ing certain class instances segfaults

If objects return immutable property hash tables (typically,
`zend_empty_array`), we must not try to apply recursion protecti

Fix #77638: var_export'ing certain class instances segfaults

If objects return immutable property hash tables (typically,
`zend_empty_array`), we must not try to apply recursion protection on
those.

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Remove most uses of ZEND_PARSE_PARAMETERS_END_EX()

As ZPP now throws, it makes no sense to specify an explicit return
value.

Merge branch 'PHP-7.4'

Add max_depth option to unserialize()

Add a max_depth option to unserialize and an unserialize_max_depth
ini setting, which can be used to control the depth limit. The
default value

Add max_depth option to unserialize()

Add a max_depth option to unserialize and an unserialize_max_depth
ini setting, which can be used to control the depth limit. The
default value is 4096.

This option is intended to prevent stack overflows during the
unserialization of deeply nested structures.

This fixes bug #78549 and addresses oss-fuzz #17581, #17589, #17664,
and #17788.

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Remove mention of PHP major version in Copyright headers

Closes GH-4732.

Use ZEND_TYPE_IS_SET() when checking for property types

Instead of a simple if or 0 comparison. This would no longer work
if zend_type is a struct.

Change representation of zend_type from type code to MAY_BE_* mask

This switches zend_type from storing a single IS_* type code to
storing a MAY_BE_* type mask. Right now most code still

Change representation of zend_type from type code to MAY_BE_* mask

This switches zend_type from storing a single IS_* type code to
storing a MAY_BE_* type mask. Right now most code still assumes
that there is only a single type in the mask (or two together
with MAY_BE_NULL). But this will make it a lot simpler to introduce
union types.

An additional advantage (and why I'm doing this separately), is
that a number of special cases no longer need to be handled
separately: We can do a single mask & (1 << type) check to handle
all simple types, booleans (true|false) and null.

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Allow exceptions in __toString()

RFC: https://wiki.php.net/rfc/tostring_exceptions

And convert some object to string conversion related recoverable
fatal errors into Error excep

Allow exceptions in __toString()

RFC: https://wiki.php.net/rfc/tostring_exceptions

And convert some object to string conversion related recoverable
fatal errors into Error exceptions.

Improve exception safety of internal code performing string
conversions.

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