Fix bug 72788: Invalid memory access when database_object_handle
is undefined. Also fix memory leak in dbh_free when using persistent
PDO connections.

Fixed compilation warnings

Added ZEND_ATTRIBUTE_FORMAT to some middind functions.
"%p" replaced by ZEND_LONG_FMT to avoid compilation warnings.
Fixed most incorrect use cases of format specifiers.

- get rid of EG(scope). zend_get_executed_scope() should be used instead.
- ichanged zval_update_constant_ex(). Use IS_TYPE_IMMUTABLE flag on shared constants and AST, instead of "inline_change"

- get rid of EG(scope). zend_get_executed_scope() should be used instead.
- ichanged zval_update_constant_ex(). Use IS_TYPE_IMMUTABLE flag on shared constants and AST, instead of "inline_change" parameter.

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Removed "zend_fcall_info.function_table". It was assigned in many places, but is never used.

Removed zend_fcall_info.symbol_table

Remove version checks

PHP_VERSION_ID
PHP_API_VERSION
ZEND_MODULE_API_NO
PHP_MAJOR_VERSION, PHP_MINOR_VERSION
ZEND_ENGINE_2

I've left litespeed alone, as it seems to

Remove version checks

PHP_VERSION_ID
PHP_API_VERSION
ZEND_MODULE_API_NO
PHP_MAJOR_VERSION, PHP_MINOR_VERSION
ZEND_ENGINE_2

I've left litespeed alone, as it seems to genuinely maintain support
for many PHP versions.

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Fixed warning of incompatible pointer

Avoid incomplete zend_internal_function initialization.

Do not edit the value in place (might be relates to #71261)

Merge branch 'PHP-5.6' into PHP-7.0

* PHP-5.6:
Happy new year (Update copyright to 2016)

Happy new year (Update copyright to 2016)

Fix bug #64172

Check if the SQLSTATE error code is equal to PDO_ERR_NONE before we ask the driver.
And if no error is reported skip the extra call to the driver.

Fix bug #64172

Check if the SQLSTATE error code is equal to PDO_ERR_NONE before we ask the driver.
And if no error is reported skip the extra call to the driver.

Cleanup: removed deprecated commented code. Incorrect zval_dtor() usage replaced by zval_dtor_ptr().

Merge branch 'PHP-5.6'

Conflicts:
ext/pdo/pdo_dbh.c
ext/pdo/php_pdo_driver.h

Fixed bug #70389 (PDO constructor changes unrelated variables)

Fixed bug #70221 (persistent sqlite connection + custom function segfaults)

Use ZSTR_ API to access zend_string elements (this is just renaming without semantick changes).

Expose pdo stmt ctor args to gc

These very commonly contain a reference to the PDO object itself.

Use fast method to check if first arguments should be passed by reference (not tested onbig endian).

Fix leak of Pdo object if query() fails

Decref the DBH object when storing the errored query statement --
the DBH owns the stmt, so it will live long enough.

Fix EH_THROW replacement in PDO constructor

Needs to happen for the "goto options" case as well, otherwise
will try to restore error handling that was never replaced.

Always throw TypeException on throwing zpp failures

Introduces a ZEND_PARSE_PARAMS_THROW flag for zpp, which forces to
report FAILURE errors using a TypeException instead of a Warning,

Always throw TypeException on throwing zpp failures

Introduces a ZEND_PARSE_PARAMS_THROW flag for zpp, which forces to
report FAILURE errors using a TypeException instead of a Warning,
like it would happen in strict mode.

Adds a zend_parse_parameters_throw() convenience function, which
invokes zpp with this flag.

Converts all cases I could identify, where we currently have
throwing zpp usage in constructors and replaces them with this API.
Error handling is still replaced to EH_THROW in some cases to handle
other, domain-specific errors in constructors.

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Try fixing PDO MySQL pconnect test

Use less aggressive conversion to exceptions, in particular
do not convert warnings that happen during check_liveness. If the
server has gone away

Try fixing PDO MySQL pconnect test

Use less aggressive conversion to exceptions, in particular
do not convert warnings that happen during check_liveness. If the
server has gone away this will just reconnect and we still end up
with a valid connection, so it shouldn't throw.

Also drop some unnecessary checks for malloc returning NULL.

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