Port test filter.

diff --git a/filters/php_testfilter.c b/filters/php_testfilter.c
index ca844b3..ccc2268 100644
--- a/filters/php_testfilter.c
+++ b/filters/php_testfilter.c
@@ -14,7 +14,9 @@ _php_testfilter_tint(Imlib_Image im, HashTable* params)
 {
       Imlib_Image imge = im;
       Imlib_Image anoim;
-      HashPosition pos;
+      ulong num_index;
+      zend_string *str_index;
+      zval *data;

       Imlib_Color_Modifier cm;
       DATA8 atab[256];
@@ -28,30 +30,21 @@ _php_testfilter_tint(Imlib_Image im, HashTable* params)
       w = imlib_image_get_width();
       h = imlib_image_get_height();

-      zend_hash_internal_pointer_reset_ex(params,&pos);
-      while (pos)
+      ZEND_HASH_FOREACH_KEY_VAL(params, num_index, str_index, data)
       {
-        char *str_index;
-        ulong num_index;
-        int retval;
-
-        retval=zend_hash_get_current_key_ex(params,&str_index,NULL,&num_index,0,&pos);
-        if (retval==HASH_KEY_IS_STRING)
+        if (str_index)
         {
-          zval **data;
-          zend_hash_get_current_data_ex(params,(void*)&data,&pos);
           convert_to_long_ex(data);
-          if (!strcmp(str_index,"red")) r=Z_LVAL_PP(data);
-          if (!strcmp(str_index,"blue")) b=Z_LVAL_PP(data);
-          if (!strcmp(str_index,"green")) g=Z_LVAL_PP(data);
-          if (!strcmp(str_index,"x")) x=Z_LVAL_PP(data);
-          if (!strcmp(str_index,"y")) y=Z_LVAL_PP(data);
-          if (!strcmp(str_index,"w")) w=Z_LVAL_PP(data);
-          if (!strcmp(str_index,"h")) h=Z_LVAL_PP(data);
-          if (!strcmp(str_index,"alpha")) a=Z_LVAL_PP(data);
+          if (!strcmp(str_index->val,"red")) r=Z_LVAL_P(data);
+          if (!strcmp(str_index->val,"blue")) b=Z_LVAL_P(data);
+          if (!strcmp(str_index->val,"green")) g=Z_LVAL_P(data);
+          if (!strcmp(str_index->val,"x")) x=Z_LVAL_P(data);
+          if (!strcmp(str_index->val,"y")) y=Z_LVAL_P(data);
+          if (!strcmp(str_index->val,"w")) w=Z_LVAL_P(data);
+          if (!strcmp(str_index->val,"h")) h=Z_LVAL_P(data);
+          if (!strcmp(str_index->val,"alpha")) a=Z_LVAL_P(data);
         }
-      zend_hash_move_forward_ex(params,&pos);
-      }
+      } ZEND_HASH_FOREACH_END();
 /*
       zend_printf( "Using values red=%d,blue=%d,green=%d,x=%d,y=%d,height=%d,width=%d,alpha=%d\n", r,b,g,x,y,w,h,a );
  */