PHP array_unique 从数组中删除重复值

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php 数组去重[

示例#1 array_unique()示例

<?php
$input = array("a" => "green", "red", "b" => "green", "blue", "red");
$result = array_unique($input);
print_r($result);
?>

上面的例子将输出:

Array
(
    [a] => green
    [0] => red
    [1] => blue
)

示例#2 array_unique()和类型

<?php
$input = array(4, "4", "3", 4, 3, "3");
$result = array_unique($input);
var_dump($result);
?>

上面的例子将输出:

array(2) {
  [0] => int(4)
  [2] => string(1) "3"
}