如何在PHP中使用带有foreach的数组

Question

I'm try to using array in PHP by finding it index and keys as foreach. example I want to get $k["ab"] or $ro["hh"] but I can't get it

<?php
$data = array(
    "test"=>array(
        "some"=>"d",
        "hello"=>"e",
        "ther"=>"a"
    ),
    "ab"=>array(
        "ad"=>"tt",
        "de"=>"jj",
        "hh"=>"uu")
    );
    foreach($data as $k=>$ro){
          var_dump($k);
    } 
?>

Answer 1

Please try Below :

<?php
$data = array(
    "test"=>array(
        "some"=>"d",
        "hello"=>"e",
        "ther"=>"a"
    ),
    "ab"=>array(
        "ad"=>"tt",
        "de"=>"jj",
        "hh"=>"uu")
    );
    foreach($data as $k=>$ro){
        if($k == "ab"){
            echo "<pre>";
            print_R($ro);
            echo 'HH Value ===> '.$ro['hh'];
        }
    } 
?>

And Want to get All values and Keys Try Below For Each :

foreach($data as $k=>$ro){
        foreach($ro as $inner_key => $inner_value){
            echo "<br/> Key ===> ".$inner_key."==== value =====>".$inner_value;
        }

    }