PHP reverse sort and random sort code_PHP tutorial

Introduction to array_reverse() function and shuffle() function

array_reverse()
array array_reverse(array)array_reverse() function passes an array as an input parameter and returns an array with the input parameter Arrays with the same values ​​but in reverse order.

Copy code The code is as follows:

$a = array(1,2 ,3,4,5);
$a = array_reverse($a);
for ($i=0; $iecho $a [$i]." ";
?>

The result is:

5 4 3 2 1

shuffle()
bool shuffle(array) The shuffle function randomly sorts the incoming array and returns TRUE if successful, otherwise it returns FALSE.

Copy code The code is as follows:

$a = array(1,2 ,3,4,5);
shuffle($a);
for ($i=0; $iecho $a[$i ]." ";
shuffle($a);
echo "
";
for ($i=0; $iecho $a[$i]." ";
?>

Results returned by two calls:

4 1 2 5 3
1 5 2 4 3

http://www.bkjia.com/PHPjc/322125.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/322125.htmlTechArticlearray_reverse() function and shuffle() function introduction array_reverse() array array_reverse(array)array_reverse() function input The parameter is an array and returns an array with the same value as the passed parameter but in the same order...