Creating a table in BigQuery using the PHP api with schema - php

Question

I'm trying to create a table in bigquery using the php api.
I can create a table without a schema just fine, but when I provide a schema I get errors. It looks like I'm using the wrong syntax, however I tried just about any formatting I could think of and couldn't find a single example of what I'm trying to achieve.
I use a string literal for the fields parameter for testing. My code looks like this:
$bigQuery = new BigQueryClient([
'keyFilePath' => [keyfilepath],
'projectId' => [projectid],
'location' => [location]
]);
/** #var Dataset $dataSet */
$dataSet = $bigQuery->dataset('my-data-set');
$fieldString = '{"name": "myfield","type": "STRING","mode": "REQUIRED"}' . "\n" . '{"name": "anotherfield", "type": "STRING", "mode": "REQUIRED"}';
$options = [
'fields' => $fieldString
];
$dataSet->createTable('mytable', $options);
Which gives the error:
"Invalid field selection {\"name\":\"myfield\""
Or alternatively, when I format the "$fieldString" like this:
$fieldString = '[{"name": "myfield","type": "STRING","mode": "REQUIRED"}, {"name": "anotherfield", "type": "STRING", "mode": "REQUIRED"}]';
I get the error:
Invalid FieldMask '[{\"name\":\"myfield\",\"type\":\"STRING\",\"mode\":\"REQUIRED\"},{\"name\":\"anotherfield\",\"type\":\"STRING\",\"mode\":\"REQUIRED\"}]'. Map keys should be represented as [\"some_key\"].
I've also tried to create the table first and then update it like so:
$table = $dataSet->createTable('mytable');
$table->update($options);
But I get the same errors. Even when I use the the json representation exactly like shown here the problem persists.
What am I doing wrong here?
UPDATE:
I actually first tried this, before I switched to a string literal for the fields:
$fields = [
['name'=> 'myfield', 'type' => 'INTEGER', 'mode' => 'REQUIRED'],
['name'=> 'anotherfield', 'type' => 'INTEGER', 'mode' => 'REQUIRED']
];
$options = [
'schema' => $fields
];
$dataSet->createTable('mytable', $options);
This yields the error:
"Invalid JSON payload received. Unknown name \"schema\" at 'table': Proto field is not repeating, cannot start list."
Then I edited the code to look like this:
$fields = [
['name'=> 'myfield', 'type' => 'INTEGER', 'mode' => 'REQUIRED'],
['name'=> 'anotherfield', 'type' => 'INTEGER', 'mode' => 'REQUIRED']
];
$options = [
'fields' => $fields
];
$dataSet->createTable('mytable', $options);
Which gives:
Warning: rawurlencode() expects parameter 1 to be string, array given
I didn't mention this in my question before because I thought it wasn't relevant. In hindsight it probably is, but my problem still persists.

Answer 1

There is no such thing as $fieldString that is $fields array
like this:
$fields = [
[
'name' => 'field1',
'type' => 'string',
'mode' => 'required'
],
[
'name' => 'field2',
'type' => 'integer'
],
];
then
$schema = ['fields' => $fields];
$table = $dataset->createTable($tableId, ['schema' => $schema]);
See example here.