Make mb_ereg(i) argument a normal string argument

Instead of manually handling the string conversion, use the standard
zpp mechanism.

Author: nikic

ext/mbstring/php_mbregex.c

@@ -853,16 +853,16 @@ PHP_FUNCTION(mb_regex_encoding)
 /* {{{ _php_mb_regex_ereg_exec */
 static void _php_mb_regex_ereg_exec(INTERNAL_FUNCTION_PARAMETERS, int icase)
 {
-	zval *arg_pattern, *array = NULL;
-	char *string;
-	size_t string_len;
+	zval *array = NULL;
+	char *arg_pattern, *string;
+	size_t arg_pattern_len, string_len;
 	php_mb_regex_t *re;
 	OnigRegion *regs = NULL;
 	int i, match_len, beg, end;
 	OnigOptionType options;
 	char *str;
 
-	if (zend_parse_parameters(ZEND_NUM_ARGS(), "zs|z", &arg_pattern, &string, &string_len, &array) == FAILURE) {
+	if (zend_parse_parameters(ZEND_NUM_ARGS(), "ss|z", &arg_pattern, &arg_pattern_len, &string, &string_len, &array) == FAILURE) {
 		RETURN_FALSE;
 	}
 
@@ -886,23 +886,13 @@ static void _php_mb_regex_ereg_exec(INTERNAL_FUNCTION_PARAMETERS, int icase)
 		options |= ONIG_OPTION_IGNORECASE;
 	}
 
-	/* compile the regular expression from the supplied regex */
-	if (Z_TYPE_P(arg_pattern) != IS_STRING) {
-		/* we convert numbers to integers and treat them as a string */
-		if (Z_TYPE_P(arg_pattern) == IS_DOUBLE) {
-			convert_to_long_ex(arg_pattern);	/* get rid of decimal places */
-		}
-		convert_to_string_ex(arg_pattern);
-		/* don't bother doing an extended regex with just a number */
-	}
-
-	if (Z_STRLEN_P(arg_pattern) == 0) {
+	if (arg_pattern_len == 0) {
 		php_error_docref(NULL, E_WARNING, "empty pattern");
 		RETVAL_FALSE;
 		goto out;
 	}
 
-	re = php_mbregex_compile_pattern(Z_STRVAL_P(arg_pattern), Z_STRLEN_P(arg_pattern), options, MBREX(current_mbctype), MBREX(regex_default_syntax));
+	re = php_mbregex_compile_pattern(arg_pattern, arg_pattern_len, options, MBREX(current_mbctype), MBREX(regex_default_syntax));
 	if (re == NULL) {
 		RETVAL_FALSE;
 		goto out;

ext/mbstring/tests/mb_ereg1.phpt

@@ -43,7 +43,7 @@ array(3) {
   }
 }
 
-Notice: Array to string conversion in %s on line %d
+Warning: mb_ereg() expects parameter 1 to be string, array given in %s on line %d
 bool(false)
 array(3) {
   [0]=>
@@ -52,8 +52,7 @@ array(3) {
   [1]=>
   int(1)
   [2]=>
-  array(0) {
-  }
+  string(0) ""
 }
 
 Warning: mb_ereg() expects parameter 2 to be string, array given in %s on line %d

ext/mbstring/tests/mb_ereg_variation1.phpt

@@ -89,7 +89,7 @@ fclose($fp);
 
 echo "Done";
 ?>
---EXPECT--
+--EXPECTF--
 *** Testing mb_ereg() : usage variations ***
 
 -- Iteration 1 --
@@ -172,7 +172,8 @@ array(0) {
 }
 
 -- Iteration 16 --
+
+Warning: mb_ereg() expects parameter 1 to be string, resource given in %s on line %d
 bool(false)
-array(0) {
-}
+NULL
 Done