Thinkphp5 how to determine whether a table exists

thinkphp5 How to judge whether a table exists

This article mainly shows you “thinkphp5 How to judge whether a table exists ”, The content is simple and easy to understand , Clarity of organization , I hope I can help you solve your doubts , Now let Xiaobian lead you to study and learn “thinkphp5 How to judge whether a table exists ” This is the article .

Method ：1、 use “$a=M()->query('SHOW TABLES LIKE" Table name "');if($a){ There is }else{ Table does not exist }” Judge ;2、 use “$a=M( Table name );if($a->getDbError()){ Table does not exist }else{ There is }” Judge .

This article describes the operating environment ：Windows10 System 、ThinkPHP5 edition 、Dell G3 The computer .

thinkphp5 How to judge whether a table exists

thinkphp Framework is a very easy-to-use and powerful framework , It is the development habit of our people . So in use thinkphp Frame time , Sometimes there's a need , It is necessary to judge whether a database table exists .

ad locum , We assume judgment users Does the table exist ：

$users = M('users');
if($users->getDbError()){
    echo ' Data table does not exist ！';
}else{
    echo ' The database exists ！';
}

Method 2：

$isTable = M()->query('SHOW TABLES LIKE "table_name"');
if( $isTable ){
    echo ' Table exists ';
}else{
    echo ' Table does not exist ';
}

Above is “thinkphp5 How to judge whether a table exists ” All the content of this article , Thank you for reading ！ I believe we all have a certain understanding , I hope the content shared will be helpful to you , If you want to learn more , Welcome to the Yisu cloud industry information channel ！