php access array data misunderstanding

Question

Given the following array $testarray:

array(1) {
  [0]=>
  array(3) {
    ["brand"]=>
    string(4) "fiat"
    ["year"]=>
    string(4) "2001"
    ["color"]=>
    string(4) "blue"
    }
}

I'm trying to access the data inside with:

foreach($testarray[0] as $key => $value)
{
    $newresultado = $value['brand'].$value['year'].$value['color'];
}
echo $newresultado;

I do not get an error returned, but I do get an empty string.

I checked a lot of topics and this should be correct. Why am I getting the empty string?

Try removing the [0] from the foreach, you are iterating over the elements then looking for a brand. — MCMXCII
– MCMXCII, Commented Jan 3, 2018 at 17:52

AbraCadaver · Accepted Answer · 2018-01-03 18:14:05Z

1

You are looping through the values under the 0 index so the indexes you are referencing don't exist. Also, if you have more than one then each will overwrite the other so you would use .= instead:

$newresultado = '';

foreach($testarray as $key => $value)
{
    $newresultado .= $value['brand'].$value['year'].$value['color'];
}
echo $newresultado;

If there will only ever be one item then there is no need to loop:

echo $testarray[0]['brand'].$testarray[0]['year'].$testarray[0]['color'];

You need to develop with these settings which would have shown you notices and errors:

error_reporting(E_ALL);
ini_set('display_errors', '1');

edited Jan 3, 2018 at 18:14

answered Jan 3, 2018 at 17:53

AbraCadaver

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Comments

Robert Columbia · Accepted Answer · 2018-01-04 03:43:02Z

0

Try removing [0] from $testarray.

edited Jan 4, 2018 at 3:43

Robert Columbia

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answered Jan 3, 2018 at 17:53

Mateusz Kibiłko

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