Voidify PDO's fetch_error handler

ext/pdo/pdo_dbh.c

@@ -148,12 +148,12 @@ PDO_API void pdo_handle_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt) /* {{{ */
 
 	ZVAL_UNDEF(&info);
 	if (dbh->methods->fetch_err) {
+		zval *item;
 		array_init(&info);
 
 		add_next_index_string(&info, *pdo_err);
 
-		if (dbh->methods->fetch_err(dbh, stmt, &info)) {
-			zval *item;
+		dbh->methods->fetch_err(dbh, stmt, &info);
 
 		if ((item = zend_hash_index_find(Z_ARRVAL(info), 1)) != NULL
 				&& Z_TYPE_P(item) == IS_LONG) {
@@ -164,7 +164,6 @@ PDO_API void pdo_handle_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt) /* {{{ */
 			supp = estrndup(Z_STRVAL_P(item), Z_STRLEN_P(item));
 		}
 	}
-	}
 
 	if (native_code && supp) {
 		message = strpprintf(0, "SQLSTATE[%s]: %s: " ZEND_LONG_FMT " %s", *pdo_err, msg, native_code, supp);

ext/pdo/php_pdo_driver.h

@@ -250,13 +250,16 @@ typedef bool (*pdo_dbh_set_attr_func)(pdo_dbh_t *dbh, zend_long attr, zval *val)
  * MUST be an emalloc'd NULL terminated string. */
 typedef char *(*pdo_dbh_last_id_func)(pdo_dbh_t *dbh, const char *name, size_t *len);
 
-/* fetch error information.  if stmt is not null, fetch information pertaining
- * to the statement, otherwise fetch global error information.  The driver
- * should add the following information to the array "info" in this order:
+/* Fetch error information.
+ * If stmt is not null, fetch information pertaining to the statement,
+ * otherwise fetch global error information.
+ * info is an initialized PHP array, if there are no messages leave it empty.
+ * The driver should add the following information to the array "info" in this order:
  * - native error code
  * - string representation of the error code ... any other optional driver
- *   specific data ...  */
-typedef	int (*pdo_dbh_fetch_error_func)(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info);
+ *   specific data ...
+ * PDO takes care of normalizing the array. */
+typedef void (*pdo_dbh_fetch_error_func)(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info);
 
 /* fetching of attributes
  * There are 3 return states:

ext/pdo_dblib/dblib_driver.c

@@ -31,7 +31,7 @@
 /* Cache of the server supported datatypes, initialized in handle_factory */
 zval* pdo_dblib_datatypes;
 
-static int dblib_fetch_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info)
+static void dblib_fetch_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info)
 {
 	pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data;
 	pdo_dblib_err *einfo = &H->err;
@@ -55,7 +55,7 @@ static int dblib_fetch_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info)
 
 	/* don't return anything if there's nothing to return */
 	if (msg == NULL && einfo->dberr == 0 && einfo->oserr == 0 && einfo->severity == 0) {
-		return 0;
+		return;
 	}
 
 	spprintf(&message, 0, "%s [%d] (severity %d) [%s]",
@@ -69,8 +69,6 @@ static int dblib_fetch_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info)
 	if (einfo->oserrstr) {
 		add_next_index_string(info, einfo->oserrstr);
 	}
-
-	return 1;
 }
 
 

ext/pdo_firebird/firebird_driver.c

@@ -968,7 +968,7 @@ static int firebird_handle_get_attribute(pdo_dbh_t *dbh, zend_long attr, zval *v
 /* }}} */
 
 /* called by PDO to retrieve driver-specific information about an error that has occurred */
-static int pdo_firebird_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info) /* {{{ */
+static void pdo_firebird_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info) /* {{{ */
 {
 	pdo_firebird_db_handle *H = (pdo_firebird_db_handle *)dbh->driver_data;
 	const ISC_STATUS *s = H->isc_status;
@@ -987,7 +987,6 @@ static int pdo_firebird_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval
 		add_next_index_long(info, -999);
 		add_next_index_string(info, const_cast(H->last_app_error));
 	}
-	return 1;
 }
 /* }}} */
 

ext/pdo_mysql/mysql_driver.c

@@ -117,7 +117,7 @@ int _pdo_mysql_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, const char *file, int lin
 /* }}} */
 
 /* {{{ pdo_mysql_fetch_error_func */
-static int pdo_mysql_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info)
+static void pdo_mysql_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info)
 {
 	pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
 	pdo_mysql_error_info *einfo = &H->einfo;
@@ -136,7 +136,7 @@ static int pdo_mysql_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *in
 		add_next_index_string(info, einfo->errmsg);
 	}
 
-	PDO_DBG_RETURN(1);
+	PDO_DBG_VOID_RETURN;
 }
 /* }}} */
 

ext/pdo_oci/oci_driver.c

@@ -29,7 +29,7 @@
 
 static inline ub4 pdo_oci_sanitize_prefetch(long prefetch);
 
-static int pdo_oci_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info) /* {{{ */
+static void pdo_oci_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info) /* {{{ */
 {
 	pdo_oci_db_handle *H = (pdo_oci_db_handle *)dbh->driver_data;
 	pdo_oci_error_info *einfo;
@@ -48,8 +48,6 @@ static int pdo_oci_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info
 		add_next_index_long(info, einfo->errcode);
 		add_next_index_string(info, einfo->errmsg);
 	}
-
-	return 1;
 }
 /* }}} */
 

ext/pdo_odbc/odbc_driver.c

@@ -27,7 +27,7 @@
 #include "php_pdo_odbc_int.h"
 #include "zend_exceptions.h"
 
-static int pdo_odbc_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info)
+static void pdo_odbc_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info)
 {
 	pdo_odbc_db_handle *H = (pdo_odbc_db_handle *)dbh->driver_data;
 	pdo_odbc_errinfo *einfo = &H->einfo;
@@ -47,8 +47,6 @@ static int pdo_odbc_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *inf
 	add_next_index_long(info, einfo->last_error);
 	add_next_index_str(info, message);
 	add_next_index_string(info, einfo->last_state);
-
-	return 1;
 }
 
 

ext/pdo_pgsql/pgsql_driver.c

@@ -107,7 +107,7 @@ static void _pdo_pgsql_notice(pdo_dbh_t *dbh, const char *message) /* {{{ */
 }
 /* }}} */
 
-static int pdo_pgsql_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info) /* {{{ */
+static void pdo_pgsql_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info) /* {{{ */
 {
 	pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
 	pdo_pgsql_error_info *einfo = &H->einfo;
@@ -115,13 +115,12 @@ static int pdo_pgsql_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *in
 	if (einfo->errcode) {
 		add_next_index_long(info, einfo->errcode);
 	} else {
+		/* Add null to respect expected info array structure */
 		add_next_index_null(info);
 	}
 	if (einfo->errmsg) {
 		add_next_index_string(info, einfo->errmsg);
 	}
-
-	return 1;
 }
 /* }}} */
 

ext/pdo_sqlite/sqlite_driver.c

@@ -82,7 +82,7 @@ int _pdo_sqlite_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, const char *file, int li
 }
 /* }}} */
 
-static int pdo_sqlite_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info)
+static void pdo_sqlite_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info)
 {
 	pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
 	pdo_sqlite_error_info *einfo = &H->einfo;
@@ -91,8 +91,6 @@ static int pdo_sqlite_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *i
 		add_next_index_long(info, einfo->errcode);
 		add_next_index_string(info, einfo->errmsg);
 	}
-
-	return 1;
 }
 
 static void pdo_sqlite_cleanup_callbacks(pdo_sqlite_db_handle *H)