Add stubs for directory and file functions

Add Z_PARAM_STRING/ARRAY_OR_NULL convenience macros

Add fdiv() function

The fdiv() function is part of the fmod() / intdiv() family. It
implements a floating-point division with IEEE-754 semantics.
That is, division by zero is conside

Add fdiv() function

The fdiv() function is part of the fmod() / intdiv() family. It
implements a floating-point division with IEEE-754 semantics.
That is, division by zero is considered well-defined and does not
trigger any kind of diagnostic. Instead one of INF, -INF or NAN
will be returned, depending on the case.

This is in preparation for throwing DivisionByZeroError from the
standard division operator.

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Add missing zend_parse_parameters_none() checks

Closes GH-4796.

Merge branch 'PHP-7.4'

Fix number of required arguments in arginfo

* pack() only requires one argument
* stream_context_set_option() only requires two arguments
* ReflectionMethod::getClosure() accepts no

Fix number of required arguments in arginfo

* pack() only requires one argument
* stream_context_set_option() only requires two arguments
* ReflectionMethod::getClosure() accepts no args for static methods
* DOMDocument::createProcessingInstruction() only requires one arg
* DOMImplementation::createDocument() only requires two arguments
* DOMDocument::importNode() only requires one arg
* mysql_get_client_version() doesn't accept any args,
despite what the docs say...

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Convert string function arginfo to PHP stubs

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.

Add debugging code to usleep()

To see if intermittent CI failures are caused by a signal interrupt.

Add assert arginfo stubs

Closes GH-4619.

Convert remaining array function arginfo to PHP stubs

Add some header and html function stub

Add sha1 arginfo stubs

Add pageinfo arginfo stubs

Add metaphone arginfo stubs

Add md5 arginfo stubs

Add lcg arginfo stubs

Add ftok arginfo stubs

Add hrtime arginfo stubs

add some stubs for array func in basic_functions

Merge branch 'PHP-7.4'

Add inet_ntop and inet_pton stubs