How i can take first array from array - php

Question

I have an array containing two arrays. When I write var_dump($array):
array(7) {
["Article"]=>
array(1) {
[0]=>
string(8) "39-746У"
}
["Visible"]=>
array(1) {
[0]=>
string(1) "1"
}
}
array(7) {
["Article"]=>
array(1) {
[0]=>
string(6) "12-003"
}
["Visible"]=>
array(1) {
[0]=>
string(1) "1"
}
}
When I write var_dump($array[0]) i get NULL.
I want to change Visible in the second array, but it change in two arrays
Real code:
$sql2="select tblCurrencies.name as name,Price,tblArticleInfo.Name as Name,ArticleID,CategoryID,Article,Visible from tblArticles,tblArticleInfo,tblCurrencies where tblArticleInfo.ArticleID=tblArticles.Id and tblArticles.Id='{$tovar_id}' and tblArticles.currencyID=tblCurrencies.id";
$Array2=query_result_as_rows($sql2,$conn);

Answer 1

You have two different kinds of array here, an associative array, with key-value pairs, and a non-associative array, indexed by number.
Associative array:
$a_array = array(
"Article" => "foo",
"Visible" => " bar",
);
Access data in an associative array:
echo $a_array['Article'];
// prints 'foo'
Iterate through an associative array:
foreach ($a_array as $key => $value) {
echo "$key, $value; ";
}
// prints 'Article, foo; Visible, bar'
//
A numerically-indexed array:
$num_array = ('pip', 'pap', 'pop');
Access items in a numerically-indexed array:
echo $num_array[0] . ", " . $num_array[2];
// prints 'pip, pop'
Iterate through the array:
foreach ($num_array as $num) {
echo "$num! ";
}
// prints "pip! pap! pop! "
You have an associative array with a numerically-indexed array inside it:
$array = array(
'Article' => array( '39-746У' ),
'Visible' => array( '1' )
);
var_dump of $array:
array(2) {
["Article"]=>
array(1) {
[0]=>
string(8) "39-746У"
}
["Visible"]=>
array(1) {
[0]=>
string(1) "1"
}
}
To access data, you need to combine the two methods:
echo $array['Article'][0];
// prints "39-746У"
To iterate through the arrays:
foreach ($array as $key => $value) { // this is the outer associative array
echo "outer array key: $key...\n"; // $value is the inner array
foreach ($value as $v) { // $value is a numerically-indexed array
echo "inner array item: $v\n";
}
}
Output:
outer array key: Article
inner array item: 39-746У
outer array key: Visible
inner array item: 1

Answer 2

Here's a workaround:
$array = array(...);
$array_keys = array_keys($array);
$array_first_key = $array_keys[0];
var_dump($array[$array_first_key]);
also:
var_dump(array_shift($array));
With php 5.4+
array_values($array)[0];