本文实例讲述了php检测mysql表是否存在的方法。分享给大家供大家参考,具体如下:
pdo:
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<?php $dsn = 'mysql:dbname=test;host=127.0.0.1' ; $user = 'root' ; $password = '' ; try { $pdo = new PDO( $dsn , $user , $password ); } catch (PDOException $e ) { die ( "数据库连接失败" . $e ->getMessage()); } $table = 'cy_news' ; //判断表是否存在 $result = $pdo ->query( "SHOW TABLES LIKE '" . $table . "'" ); $row = $result ->fetchAll(); if ( '1' == count ( $row )){ echo "Table exists" ; } else { echo "Table does not exist" ; } ?> |
mysql:
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<?php $con = mysql_connect( "localhost" , "root" , "" ); mysql_select_db( "php_cms" , $con ); $table = 'cy_news' ; if (mysql_num_rows(mysql_query( "SHOW TABLES LIKE '" . $table . "'" ))==1) { echo "Table exists" ; } else { echo "Table does not exist" ; } ?> |
希望本文所述对大家PHP程序设计有所帮助。