Use clean shutdown on uncaught exception

Replace "unexpected character" warning with ParseError

Closes GH-4767.

Fix #72374: remove_path strips first char of filename

Convert some notices to warnings

Part of https://wiki.php.net/rfc/engine_warnings.

Convert GD Resources to objects

Convert "Only arrays and Traversables can be unpacked" into Error

Promote write "use scalar as array" warning to Error

Convert "Illegal offset type" warnings to exceptions

Convert "cannot add element" warning to exception

Throw Error when writing property of non-object

This removes object auto-vivification support.

This also means that we can remove the corresponding special
handling for typed pr

Throw Error when writing property of non-object

This removes object auto-vivification support.

This also means that we can remove the corresponding special
handling for typed properites: We no longer need to check that a
property is convertible to stdClass if such a conversion might
take place indirectly due to a nested property write.

Additionally OBJ_W style operations now no longer modify the
object operand, and as such we no longer need to treat op1 as a
def in SSA form.

The next step would be to actually compile the whole LHS of OBJ_W
operations in R rather than W mode, but that causes issues with
SimpleXML, whose object handlers depend on the current compilation
structure.

Part of https://wiki.php.net/rfc/engine_warnings.

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Remove unused parameter

The `$use_include_path` parameter doesn't make sense for
`tidy_repair_string()`, and actually unused, so we remove it.

Remove unused parameter

Cf. <https://bugs.php.net/78579>.

Don't make argument nullable based on AST null initializer

Closes GH-4720.

Change XMLWriter resources to objects

While we generally prefer objects over resources for quite a while, the
procedural XMLWriter API still uses resources, although there is
already

Change XMLWriter resources to objects

While we generally prefer objects over resources for quite a while, the
procedural XMLWriter API still uses resources, although there is
already an object-oriented API which uses objects. This dichotomy
makes no sense, slightly complicates the implementation, and doesn't
allow a stepwise migration to the object-oriented API, which might be
desired. Thus we completely drop the XMLWriter resources in favor of
XMLWriter objects.

We consider the minor BC break acceptable for a major version, since
only explicit type checks (`is_resource()`, `gettype()` etc.) need to
be adapted.

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Upgrading notes for removed ext/dom classes.

upgrading notes for ValueError/zend_value_error()

Enable display_startup_errors by default

Make error_reporting=E_ALL the default

Improve strpos and strstr function family implementation

Remove deprecated getaddrinfo flags

The AI_IDN_ALLOW_UNASSIGNED and AI_IDN_USE_STD3_ASCII_RULES have
been deprecated by glibcs, and PHP 7.4 follows this deprecation.

This remove

Remove deprecated getaddrinfo flags

The AI_IDN_ALLOW_UNASSIGNED and AI_IDN_USE_STD3_ASCII_RULES have
been deprecated by glibcs, and PHP 7.4 follows this deprecation.

This removes the offending flags for PHP 8.0.

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Ref #77388: Don't pass BAD_ESCAPE_IS_LITERAL

This option is considered dangerous and unwanted. To allow for more
graceful migration don't error on now ignored X modifier.

Closes

Ref #77388: Don't pass BAD_ESCAPE_IS_LITERAL

This option is considered dangerous and unwanted. To allow for more
graceful migration don't error on now ignored X modifier.

Closes GH-4430.

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Remove INPUT_SESSION and INPUT_REQUEST

These were never supported and always generated a warning. Remove
them entirely for PHP 8.

Fix a typo in UPGRADING

Merge branch 'concatenation_precedence'

Always generate fatal error for LSP failures

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