How to get column layout MIGX TV parameter?

Question

JSON

Good afternoon. Please tell me where in the MODX database the markup of the columns of the TV table of the MIGX parameter is stored.
Form tabs:
[
{"caption":"Company departments","fields": [
{"field":"name_department",
"caption":"Department name"
},{
"field":"tel_department",
"caption" :"Phone"
},{
"field":"mail_department",
"caption":"E-mail"
},{
"field":"mode_department",
"caption":"Working mode"
}
]
}]
Column layout:
[
{"header":
{"header": "Phone", "width": "40", "sortable": "false", "dataIndex": "tel_department"},
{"header": "E-mail", "width": " 40", "sortable": "false", "dataIndex": "mail_department"},
{"header": "Working mode", "width": "40", "sortable": "false", "dataIndex": "mode_department"}
]
Found this data here: site_tmplvars table. input_properties field
But the data from there is not decoded by the json_decode function. Why?

Answer 1

Issue resolved. unserialize() takes a single serialized variable and converts it back to a PHP value.