get key value from php array with string as key [closed]

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I have an associative array with strings as keys and I want to list all the keys and corresponding values in the order in which it was input. For example:

$arr=array();
$arr['tree']='leaves';
$arr['fruits']='seed';

and output should be like :

keys : tree, fruits
values : leaves,seed

php.net/manual/en/function.array-keys.php or php.net/manual/en/function.key.php — Bart Haalstra
– Bart Haalstra, Commented Jan 26, 2015 at 12:14
How do you determine that you want to fetch this specific key? On a whim? Or do you have a specific situation and reason why you need to fetch a specific key? — deceze
– deceze ♦, Commented Jan 26, 2015 at 12:16
well i just want to populate the keys in the order in which keys are input. — jacquel
– jacquel, Commented Jan 26, 2015 at 12:25

Mark Baker · Accepted Answer · 2015-01-26 12:15:31Z

2

If you're running a version of PHP that supports array dereferencing:

$key = array_keys($arr)[1];

else

$keys = array_keys($arr);
$key = $keys[1];

answered Jan 26, 2015 at 12:15

Mark Baker

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2 Comments

thpl Over a year ago

Neat :) Side note: Array dereferencing exists since PHP 5.4

jacquel Over a year ago

thanks the second code works,direct fetching is showing syntax error

Anil Baweja · Accepted Answer · 2015-01-26 12:44:07Z

1

make it associative array you can get both keys and values

$arr=array('tree'=>'leaves','fruits'=>'seeds');


foreach($arr as $key=>$value)
{
   echo $key."====>".$value;
}

answered Jan 26, 2015 at 12:44

Anil Baweja

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