Fixed bug #69688 (segfault with eval and opcache fast shutdown)

Fixed string handling (string cached in SHM marked as permanent, strings stored in CG(arena) as not)
Fixed anonymous class support

Added experimental (disabled by default) file based opcode cache.

Since 5.6 stat.cwd using emalloc (Thanks to Remi)

Keep realpath and PCRE caches in consistency with opcache SHM.

Fixed zend_string related inconsistencies

Improved "fust shutdown".

Only used in ZTS

Changed HashTable layout:

Removed HashTable->arHash (reduced memory consumption). Now hash slots may be accessed using HT_HASH() macro.
Hash slotas are allocated together with Buckets (b

Changed HashTable layout:

Removed HashTable->arHash (reduced memory consumption). Now hash slots may be accessed using HT_HASH() macro.
Hash slotas are allocated together with Buckets (before them) and lay in reverse order from HashTable->arData base address (see comments in Zend/zend_types.h)
Indexes in hash table and conflict resolution chains (Z_NEXT) may be stored as indeces or offsets in bytes, depending on system (32 or 64-bit).
HashTable data filelds are reordered to keep the most useful for zend_hash_find() data in the same CPU cache line.

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Use specialized macro for string zval creation

We don't cache custom strems with callbacks anymore

Improved hash key manangement code

Fixed conditions

Revert "Fix logical-op-parentheses warning"

This reverts commit b7408234b9d9846d69d4557aa1850f5dc4622d1a.

Fix logical-op-parentheses warning

What a condition ;-)

Improved hash key manangement code

Avoid repeatable strlen() calls

fix incompatible pointer

Use zend_string* instead of char* for opened_patch handling. Avoid reallocations and improve string reuse.

Make killing a locker an ERROR event

At least in apache, killing a locker with SIGKILL from inside opcache prevents
the child process from emitting a corresponding log event to the acces

Make killing a locker an ERROR event

At least in apache, killing a locker with SIGKILL from inside opcache prevents
the child process from emitting a corresponding log event to the access or
error logs, therefore requests are termed with no record. This makes is
incredibly difficult to debug problems espically on systems with high counts
of cache restarts. Since INFO level is far too noisy for production use,
switch the killing to a higher level so we can see it easier.

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Added specialized versions of DO_FCALL handler:
DO_ICALL - for internal functions
DO_UCALL - for user functions
DO_FCALL_BY_NAME - plain, most probably user, funcstions (not methods)

Use fast SSE2 memcpy() for copying block of data from SHM to process memory

Lazy duplication of op_array->static_variables

made ZEND_TSRMLS_CACHE_* macros look like function calls

which also comply with the current semantics for such macros

Merged zend_array and HashTable into the single data structure.
Now each HashTable is also zend_array, so it's refcounted and may be a subject for Copy on Write
zend_array_dup() was changed t

Merged zend_array and HashTable into the single data structure.
Now each HashTable is also zend_array, so it's refcounted and may be a subject for Copy on Write
zend_array_dup() was changed to allocate and return HashTable, instead of taking preallocated HashTable as argument.

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