MySQL and PHP
Copyright 1997-2021 the PHP Documentation Group.
Schema::existsInDatabase
Check if exists in database
public bool mysql_xdevapi\Schema::existsInDatabase();Checks if the current object (schema, table, collection, or view) exists in the schema object.
This function is currently not documented; only its argument list is available.
This function has no parameters.
true if the schema, table, collection, or
view still exists in the schema, else
false.
Example 5.102 Schema::existsInDatabase example
<?php
$session = mysql_xdevapi\getSession("mysqlx://user:password@localhost");
$session->sql("DROP DATABASE IF EXISTS food")->execute();
$session->sql("CREATE DATABASE food")->execute();
$session->sql("CREATE TABLE food.fruit(name text, rating text)")->execute();
$schema = $session->getSchema("food");
$schema->createCollection("trees");
// ...
$trees = $schema->getCollection("trees");
// ...
// Is this collection still in the database (schema)?
if ($trees->existsInDatabase()) {
echo "Yes, the 'trees' collection is still present.";
}
The above example will output something similar to:
Yes, the 'trees' collection is still present.