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PHP Quiz PHP CertificatePHP array_rand() Function
Complete PHP Array Reference
Definition and Usage
The array_rand() function returns a random key from an array, or it returns an array of random keys if you specify that the function should return more than one key.
Syntax
array_rand(array,number)
| Parameter | Description |
|---|---|
| array | Required. Specifies an array |
| number | Optional. Default 1. Specifies how many random keys to return |
Example 1
<?php
$a=array("a"=>"Dog","b"=>"Cat","c"=>"Horse");
print_r(array_rand($a,1));
?>
$a=array("a"=>"Dog","b"=>"Cat","c"=>"Horse");
print_r(array_rand($a,1));
?>
The output of the code above could be:
b
Example 2
An array with string keys:
<?php
$a=array("a"=>"Dog","b"=>"Cat","c"=>"Horse");
print_r(array_rand($a,2));
?>
$a=array("a"=>"Dog","b"=>"Cat","c"=>"Horse");
print_r(array_rand($a,2));
?>
The output of the code above could be:
Array ( [0] => c [1] => b )
Complete PHP Array Reference
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