Index: Zend/zend_operators.c
===================================================================
RCS file: /repository/ZendEngine2/zend_operators.c,v
retrieving revision 1.208.2.4
diff -u -p -d -r1.208.2.4 zend_operators.c
--- Zend/zend_operators.c	5 Feb 2006 17:07:40 -0000	1.208.2.4
+++ Zend/zend_operators.c	23 Feb 2006 15:15:38 -0000
@@ -1370,6 +1370,13 @@ ZEND_API int compare_function(zval *resu
 		result->value.lval = op1->value.lval>op2->value.lval?1:(op1->value.lval<op2->value.lval?-1:0);
 		COMPARE_RETURN_AND_FREE(SUCCESS);
 	}
+	if (op1->type == IS_DOUBLE && op2->type == IS_DOUBLE) {
+		if (zend_isinf(op1->value.dval) && zend_isinf(op2->value.dval)) {
+			result->type = IS_DOUBLE;
+			result->value.dval = 0;
+			COMPARE_RETURN_AND_FREE(SUCCESS);
+		}
+	}
 	if ((op1->type == IS_DOUBLE || op1->type == IS_LONG)
 		&& (op2->type == IS_DOUBLE || op2->type == IS_LONG)) {
 		result->value.dval = (op1->type == IS_LONG ? (double) op1->value.lval : op1->value.dval) - (op2->type == IS_LONG ? (double) op2->value.lval : op2->value.dval);