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Schema::existsInDatabase — Check if exists in database
Checks if the current object (schema, table, collection, or view) exists in the schema object.
This function has no parameters.
true
if the schema, table, collection, or view still exists in the schema, else false
.
Example #1 mysql_xdevapi\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.