Cannot get array key name

Question

I'm trying to get the array key name of the following:

[tax_input] => Array
(
    [property-category] => Array
        (
            [1] => 4
            [2] => 8
        )

    [property-action] => Array
        (
            [1] => 9
        )
)

so I'm iterating it as:

foreach($tax_input as $key => $tax)
{
    var_dump($tax_input[$key]);
}

but this return an empty string, what I did wrong?

Can you share minimum verifiable example? Use 3v4l.org for demo sharing — nice_dev
– nice_dev, Commented Oct 12, 2019 at 9:38

Badrinath · Accepted Answer · 2019-10-12 09:40:18Z

1

If you want to get key only then use

foreach($tax_input as $key => $tax)
{
  var_dump($key);
}

answered Oct 12, 2019 at 9:40

Badrinath

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3 Comments

Umer Abbas Over a year ago

@Badrinath generally it's good practice to use builtin functions if available.

Badrinath Over a year ago

Yes, but for @sfarzoso 's understanding this one is the best way.

Umer Abbas Over a year ago

array_keys($array)

Umer Abbas · Accepted Answer · 2019-10-12 09:41:11Z

1

use php array_keys() function

print_r(array_keys($tax_input));

answered Oct 12, 2019 at 9:41

Umer Abbas

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Comments

V. Prince · Accepted Answer · 2019-10-12 09:39:04Z

0

try this one.

foreach($tax_input as $k => $v)
{
    foreach( $v as $vk => $vv ){

      var_dump( '<pre>',$vv );
    }  
}

answered Oct 12, 2019 at 9:39

V. Prince

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Comments

LF-DevJourney · Accepted Answer · 2019-10-12 09:54:29Z

0

You should just echo $key instead of $tax_input[$key]

answered Oct 12, 2019 at 9:54

LF-DevJourney

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