在php中打印数组值

Question

I have a php array value but i don't know how to print it. there is my php code

$json = array();
if($sql->num_rows > 0){
    while($result = $sql->fetch_assoc()) {
        $json[] = $result;
    }
}

And here is my array value

Array
(
[0] => Array
    (
        [locationid] => 1
        [locationname] => Anantapur
        [locationvalue] => 1.1
    )

[1] => Array
    (
        [locationid] => 2
        [locationname] => Guntakal
        [locationvalue] => 1.2
    )

[2] => Array
    (
        [locationid] => 4
        [locationname] => Guntur
        [locationvalue] => 1.3
    )
)

I'm Trying like

echo $json['locationname'];

But It's Not working please help me

Answer 1

You need to loop through your array first. Try foreach

foreach($json as $j){
    echo $j['locationname']; 
}