Warning: Array to string conversion in 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

// use the builtin php function print_r or var_dump:
$stuff = array(1,2,3);
print_r($stuff);
$stuff = array(3,4,5);
var_dump($stuff);