PHPmysql transaction problem instance analysis, mysql instance Analysis _ PHP Tutorial

PHPmysql transaction problem instance analysis, mysql instance analysis. PHPmysql transaction problem instance analysis, mysql instance analysis this article examples analysis of PHP mysql transaction problems. For your reference, refer to: for myisam databases, you can control instance analysis of PHP mysql transaction problems and mysql instance analysis.

This article analyzes mysql transaction issues in PHP. We will share this with you for your reference. The details are as follows:

For myisam databases, you can control transactions:

$ Mysqlrl = mysql_connect ($ db_config ["host"], $ db_config ["user"], $ db_config ["pass"], true); if (! $ Mysqlrl) {$ msg = mysql_error (); die ('could not connect :'. $ msg);} mysql_select_db ($ db_config ["data"], $ mysqlrl) or die ("error: database exception"); mysql_query ("set names 'utf8 '"); date_default_timezone_set ('Asia/Shanghai');/*** BEGIN in commit end */mysql_query ('begin'); $ flag3 = mysql_query ($ sql3 ); $ flag1 = mysql_query ($ sql1); $ flag2 = mysql_query ($ sql2); if ($ flag1 & $ flag1 & $ Flag3) {mysql_query ('commit '); mysql_query ('end'); $ data. = "\ r \ n ". "Update record succeeded"; write_file ($ file, $ data); return true;} else {print mysql_error (); mysql_query ('rollback'); mysql_query ('end '); $ data. = "\ r \ n ". "An error occurred while updating the record (⊙ o ⊙ )!!! "; Write_file ($ file, $ data); return false ;}}