array_values()在php中返回数组的操作实例

array_values(array)

<?php
$lu='this.txt';
$js= file_get_contents($lu);
$okjson=json_decode($js,true);
var_dump($okjson);
/array(1) { ["this"]=> array(3) {
[0]=> array(2) { ["name"]=> string(1) "a" ["url"]=> string(2) "aa" }
[1]=> array(2) { ["name"]=> string(1) "b" ["url"]=> string(2) "bb" }
[2]=> array(2) { ["name"]=> string(1) "c" ["url"]=> string(2) "" } } }
/
unset($okjson["this"][1]);
var_dump($okjson);
/
array(1) { ["this"]=> array(2) {
[0]=> array(2) { ["name"]=> string(1) "a" ["url"]=> string(2) "aa" }
[2]=> array(2) { ["name"]=> string(1) "c" ["url"]=> string(2) "" } } }
/
$okjson['this'] = array_values($okjson['this']);
var_dump($okjson);
/
array(1) { ["this"]=> array(2) {
[0]=> array(2) { ["name"]=> string(1) "a" ["url"]=> string(2) "aa" }
[1]=> array(2) { ["name"]=> string(1) "c" ["url"]=> string(2) "" } } }
/
?>

<?php
$a=array("Name"=>"Bill","Age"=>"60","Country"=>"USA");
print_r(array_values($a));
?>