Notice: Array to string conversion in _ctools_export_get_defaults_from_cache() (linea 743 code example

Example 1: Notice: Array to string conversion php

// Use json_encode to collapse the array to json string:
$stuff = array(1,2,3);
print json_encode($stuff);   //Prints [1,2,3]

Example 2: Notice: Array to string conversion php

// Joining all the cells in the array together:
<?php
    $stuff = array(1,2,3);
    print implode(", ", $stuff);    //prints 1, 2, 3
    print join(',', $stuff);        //prints 1, 2, 3
?>