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PHP array_reverse () function

PHP Array Reference Complete PHP Array Reference

Examples

Returns an array of inverted order:

<?php
$a=array("a"=>"Volvo","b"=>"BMW","c"=>"Toyota");
print_r(array_reverse($a));
?>

Running instance »

Definition and Usage

array_reverse () function returns an array of inverted order.


grammar

array_reverse( array,preserve )

参数 描述
array 必需。规定数组。
preserve 可选。规定是否保留原始数组的键名。

可能的值:
  • true
  • false

technical details

return value: Returns an array of flipped.
PHP version: 4+
Update log: preserve parameter is new in PHP 4.0.3.


More examples

Example 1

Return the original array, the array flip, flip the array retained the original array of key names:

<?php
$a=array("Volvo","XC90",array("BMW","Toyota"));
$reverse=array_reverse($a);
$preserve=array_reverse($a,true);

print_r($a);
print_r($reverse);
print_r($preserve);
?>

Running instance »


PHP Array Reference Complete PHP Array Reference