How can I get random data from a multidimensional array? [duplicate] - php

Question

This question already has answers here:
multi dimensional array in random order
(4 answers)
Closed 6 years ago.
Is it possible to get random data from an array?
See My Array:
Array
(
[0] => Array
(
[0] => My Data
[1] => Airport
[2] => Md
)
[1] => Array
(
[0] => Live in fear
[1] => Science
[2] => Sc
)
[2] => Array
(
[0] => State History
[1] => Government
[2] => MP
)
[3] => Array
(
[0] => Real Estate
[1] => Other
[2] => Property
)
[4] => Array
(
[0] => Real State
[1] => Not Sure
[2] => NoData
)
)
I need this type of random output...
Array
(
[0] => Array
(
[0] => My Data
[1] => Airport
[2] => Md
)
[1] => Array
(
[0] => Real State
[1] => Not Sure
[2] => NoData
)
[2] => Array
(
[0] => My Data
[1] => Airport
[2] => Md
)
[3] => Array
(
[0] => State History
[1] => Government
[2] => MP
)
[4] => Array
(
[0] => Live in fear
[1] => Science
[2] => Sc
)
)

Answer 1

Try the following shuffle function.Hope it would help you.
function shuffle_assoc($list) {
if (!is_array($list)) return $list;
$keys = array_keys($list);
shuffle($keys);
$random = array();
foreach ($keys as $key) {
$random[] = $list[$key];
}
return $random;
}
$arr = array();
$arr[] = array('id' => 50, 'foo' => 'hello');
$arr[] = array('id' => 17, 'foo' => 'byebye');
$arr[] = array('id' => 19, 'foo' => 'foo');
print_r(shuffle_assoc($arr));

Answer 2

You could simply use shuffle()
bool shuffle ( array &$array )
This function shuffles (randomizes the order of the elements in) an array. It uses a pseudo random number generator that is not suitable for cryptographic purposes.
shuffle($array); // Shuffles your array keys randomly every time.

Answer 3

shuffle() will be a better option in getting out the random value from multi dimensional array.
Reference: http://php.net/manual/en/function.shuffle.php
shuffle() Example:
The shuffle() function randomizes the order of the elements in the array.
This function assigns new keys for the elements in the array. Existing keys will be removed
<?php
$my_array = array("a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow","e"=>"purple");
shuffle($my_array);
print_r($my_array);
?>
Output:
Array ( [0] => red [1] => yellow [2] => green [3] => blue [4] => purple )
//The Output will keep shuffling if you refresh the browser.