Hi!
Lars Schultz wrote:
As you can see I boldly used the function reference_count(Object) even
though it doesn't exist. This is exactly what I'd need to allow my
concept to work.
Some time ago I created a patch to implement a ref_count() function
which works the way you suggested. But I'm not sure if it's
OK/complete... and I'm not sure if something like that is really needed
in the core (and I'm definetly not the person to decide on that ;-)).
Anyway, I attatched a simple patch against current 5_2 branch to this
mail, perhaps it helps.
Best regards
Andreas
Index: basic_functions.c
===================================================================
RCS file: /repository/php-src/ext/standard/basic_functions.c,v
retrieving revision 1.725.2.31.2.39
diff -u -r1.725.2.31.2.39 basic_functions.c
--- basic_functions.c 1 Jan 2007 09:36:08 -0000 1.725.2.31.2.39
+++ basic_functions.c 19 Jan 2007 17:04:39 -0000
@@ -3040,6 +3040,11 @@
/* }}} */
/* {{{ var.c */
static
+ZEND_BEGIN_ARG_INFO(arginfo_ref_count, 0)
+ ZEND_ARG_INFO(0, var)
+ZEND_END_ARG_INFO()
+
+static
ZEND_BEGIN_ARG_INFO_EX(arginfo_var_dump, 0, 0, 1)
ZEND_ARG_INFO(0, var)
ZEND_ARG_INFO(0, ...)
@@ -3384,6 +3389,7 @@
PHP_FE(serialize,
arginfo_serialize)
PHP_FE(unserialize,
arginfo_unserialize)
+ PHP_FE(ref_count,
arginfo_ref_count)
PHP_FE(var_dump,
arginfo_var_dump)
PHP_FE(var_export,
arginfo_var_export)
PHP_FE(debug_zval_dump,
arginfo_debug_zval_dump)
Index: php_var.h
===================================================================
RCS file: /repository/php-src/ext/standard/php_var.h,v
retrieving revision 1.30.2.1.2.5
diff -u -r1.30.2.1.2.5 php_var.h
--- php_var.h 1 Jan 2007 09:36:08 -0000 1.30.2.1.2.5
+++ php_var.h 19 Jan 2007 17:04:39 -0000
@@ -23,6 +23,7 @@
#include "ext/standard/php_smart_str_public.h"
+PHP_FUNCTION(ref_count);
PHP_FUNCTION(var_dump);
PHP_FUNCTION(var_export);
PHP_FUNCTION(debug_zval_dump);
Index: var.c
===================================================================
RCS file: /repository/php-src/ext/standard/var.c,v
retrieving revision 1.203.2.7.2.14
diff -u -r1.203.2.7.2.14 var.c
--- var.c 1 Jan 2007 09:36:09 -0000 1.203.2.7.2.14
+++ var.c 19 Jan 2007 17:04:39 -0000
@@ -39,6 +39,21 @@
#define Z_REFCOUNT_PP(a) ((*a)->refcount)
/* }}} */
+/* {{{ proto int ref_count(mixed var)
+ return the number of references pointing to a var */
+PHP_FUNCTION(ref_count)
+{
+ zval *var;
+ int cnt = 0;
+
+ if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &var) ==
FAILURE) {
+ RETURN_NULL();
+ }
+
+ cnt = var->refcount;
+ RETURN_LONG (cnt);
+};
+/* }}} */
/* {{{ php_var_dump */
static int php_array_element_dump(zval **zv, int num_args, va_list args,
zend_hash_key *hash_key)
--
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