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How to query whether a data table exists in php

王林
王林Original
2020-09-11 14:43:085245browse

How to query whether a data table exists in php: first write the sql statement [show tabels like 'table']; then use the mysqli_query() function to execute the sql statement; finally use the empty() function to determine whether the execution result is false. That’s it.

How to query whether a data table exists in php

Solution:

(Related tutorial: php video tutorial)

1. Write A native sql

$sql = "show tabels like 'table'";

2. Then query execution

$result = mysqli_query($sql) ;

3. Judge based on the result

if(!empty($result)){echo "存在";}else{echo "不存在"}

Implementation code:

  $sql = 'SHOW TABLES LIKE "'.$tableName.'"';
  $checkTabel =self::query( $sql);
  if(!empty($checkTabel)){
                try {
                 
                } catch(Exception $e) {
                
                }
            }else{
             
            }

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