Interned strings unification for TS/NTS

Hereby, interned strings are supported in thread safe PHP. The patch
implements two types of interned strings

- interning per process, strings are not freed till process end
- interning per request, strings are freed at request end

There is no runtime interning.

With Opcache, all the permanent iterned strings are copied into SHM on
startup, additional copying into SHM might happen on demand.

1 files changed, 0 insertions, 4 deletions

diff --git a/sapi/phpdbg/phpdbg.c b/sapi/phpdbg/phpdbg.c
index b45ef3f684..f6008c22f1 100644
--- a/sapi/phpdbg/phpdbg.c
+++ b/sapi/phpdbg/phpdbg.c
@@ -811,15 +811,11 @@ static zend_module_entry sapi_phpdbg_module_entry = {
 	STANDARD_MODULE_PROPERTIES
 };
 
-static void phpdbg_interned_strings_nothing(void) { }
-
 static inline int php_sapi_phpdbg_module_startup(sapi_module_struct *module) /* {{{ */
 {
 	if (php_module_startup(module, &sapi_phpdbg_module_entry, 1) == FAILURE) {
 		return FAILURE;
 	}
-	/* prevent zend_interned_strings_restore from invalidating our string pointers too early (in phpdbg allocated memory only gets freed after module shutdown) */
-	zend_interned_strings_restore = phpdbg_interned_strings_nothing;
 
 	phpdbg_booted = 1;