JSON Encode

Converts a value into its JSON representation.

$etl->transform('json_encode', $options);

Options

Columns

Columns that will be transformed. If empty, the transformation is applied to all columns.

Type	Default value
array	[]

$options = ['columns' => ['preferences']];

Options

Bitmask consisting of JSON_HEX_QUOT, JSON_HEX_TAG, JSON_HEX_AMP, JSON_HEX_APOS, JSON_NUMERIC_CHECK, JSON_PRETTY_PRINT, JSON_UNESCAPED_SLASHES, JSON_FORCE_OBJECT, JSON_PRESERVE_ZERO_FRACTION, JSON_UNESCAPED_UNICODE, JSON_PARTIAL_OUTPUT_ON_ERROR. The behaviour of these constants is described on the JSON constants page.

Type	Default value
int	0

$options = ['options' => JSON_FORCE_OBJECT];

Depth

The maximum depth. Must be greater than zero.

Type	Default value
int	512

$options = ['depth' => 32];