php foreach post as $key=>$value error Notice: Array to string conversion when echo value code example

Example 1: 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);

Example 2: Notice: Array to string conversion php

$stuff = array(1,2,3);
print_r($stuff);
$stuff = array(3,4,5);
var_dump($stuff);

Example 3: Notice: Array to string conversion php

// suppress the Notices:
error_reporting(0);
print(array(1,2,3));    //Prints 'Array' without a Notice.