Closes PECL Bug #5750; uri: dsn is not handled correctly.
Patch from curt@php.net

free cls_methods correctly and fix segfault on shutdown
(no bug entry and MFB, though..)

MFH: Fixed memory leak.

fix type

Fix Bug #34687; error information from query() not passed back

- MFH PDOException base

- Add PDO::setAttribute(PDO::ATTR_STATEMENT_CLASS)

Allow compilation with PHP 5.0.x
Closes PECL #5514

MFH: Allow overloading of PDO constructor.

MFH: Make PDO use class constants

move pdo_drivers -> PDO::getAvailableDrivers as part of namespacing sweep.

add __sleep and __wakeup functions to prevent serialize/deserialize from being used on PDO objects. Refs PECL #5217

expand oracle null handling compatability by offering the ability to convert
NULLs into empty strings as well as the other way around. It still doesn't
help a great deal in the long run, but

expand oracle null handling compatability by offering the ability to convert
NULLs into empty strings as well as the other way around. It still doesn't
help a great deal in the long run, but at least the option is there.

Make sure hash tables are nulled out to avoid double freeing them.

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Safer way of allowing 'blank' user/pass.

# Thanks Wez.

Fix needed for PostgreSQL driver to allow $user & $pass to be supplied via
DSN as NULL.

Add a PDO_ATTR_STRINGIFY_FETCHES attribute, which is used to convert integer or
floating point values into strings during fetch. This is a compatibility hack
for drivers that return native t

Add a PDO_ATTR_STRINGIFY_FETCHES attribute, which is used to convert integer or
floating point values into strings during fetch. This is a compatibility hack
for drivers that return native types rather than string representations.

We use this flag in the test suite to persuade postgres tests to pass.

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populate the new dbh->driver field.
Implement PDO_ATTR_DRIVER_NAME.

Fixed memory leaks

and the lesson is, test everything before you commit at 2am

couple of conceptual errors here

Fix a dumb bug that would effecively ignore persistent connections and create a
new one each time.

Add a hook for persistent connections: it is called when the object goes out of
sco

Fix a dumb bug that would effecively ignore persistent connections and create a
new one each time.

Add a hook for persistent connections: it is called when the object goes out of
scope, and offers the driver an opportunity to release per-request scoped data
at the right time.

This hook is used by pdo_sqlite to unregister UDFs, which are dangerous to keep
registered between requests.

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initialize type of function

- Need to make PDO::__construct() final to prevent SEGV it isn't called 1st

Allocation checks around persistent allocs that can fail.

- Simplify code (only implement handlers that are necessary)
- Fix handling of read only property 'queryString'
- Fix overloading
- Move class init code to their defining .c files for sim

- Simplify code (only implement handlers that are necessary)
- Fix handling of read only property 'queryString'
- Fix overloading
- Move class init code to their defining .c files for simplification
- Mark class PDORow as final until there's a need to inherit this and
someone implements the handlers correct then.

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