How do you check if a table exist in PHP?

1. 12 Answers. // Select 1 from table_name will return false if the table does not exist. $val = mysql_query(‘select 1 from `table_name` LIMIT 1’); if($val !== FALSE) { //DO SOMETHING! IT EXISTS! } else { //I can’t find it… }
2. 125 microsecond table exists check.

How do you check if table is exist in MySQL?

SELECT COUNT(*) FROM information_schema. tables WHERE table_schema = ‘[database name]’ AND table_name = ‘[table name]’; Using our examples above and checking to see if the “another_test” table exists we would do this: SELECT COUNT(*) FROM information_schema.

How do you check if value already exists in MySQL database in PHP?

To test whether a row exists in a MySQL table or not, use exists condition. The exists condition can be used with subquery. It returns true when row exists in the table, otherwise false is returned. True is represented in the form of 1 and false is represented as 0.

How create table if not exists in PHP?

To avoid outputting anything, test for the table in your php before trying to create the table. For example, $querycheck=’SELECT 1 FROM `USERS`’; $query_result=$dbConnection->query($querycheck); if ($query_result !== FALSE) { // table exists } else { // table does not exist, create here. }

How to check if a table exists in PHP?

The $exists variable stores the boolean value of true or false. If it is true (not equal to false), then the table exists. If it is equal to false, the table doesn’t exist. This is a very quick to way to check.

How to check if a record exists in SQL database table?

$q : Has the query we are going to execute. SELECT COUNT (1) will count records. if ($row [0] >= 1) : Will check that if the count is greater or equal than 1, means that the record exists, otherwise, it doesn’t. Any question, please do not hesitate to contact me!

Is it true that the table does not exist?

If it is true (not equal to false), then the table exists. If it is equal to false, the table doesn’t exist. This is a very quick to way to check.

How to check if the current processing table exists or not?

I need to check if the current processing table exists or not. Imagine that my tables are table1, table2, and table3. My code is something like this: How can I do this check (Please tell me the simplest way). Referenced from the PHP docs. Use this query and then check the results.