How to receive an array and print your content using PHP?

Question

I need to know how to store data from an array in a variable, using the looping below:

Data collection:

$sql="SELECT `devicetoken` FROM `devicetokensios`  ORDER BY `index`";

  $resultado = mysql_query($sql) or die ("Erro .:" . mysql_error());

$deviceToken = array();

  while($r = mysql_fetch_assoc($resultado))
{
    $deviceToken [] = $r;
}
mysql_close();

After receiving the data, how do I go through a looping and have control of the array data using its index:

Example of how to use array data:

for($index = 0; $index <= count($deviceToken); $index ++){

$outraVarial = $deviceToken[$index];

}

Answer 1

Disregarding the syntax error pointed out by Sergio and considering the requirement for the array to be printed as a string, you have, without iterating, at least three options but all followed by an echo or print:

1. implode()

   <?php echo implode( '', $deviceTokens );
   

The implode() problem is that it does not work with associative array so if the array has string indexes, they will be ignored and the output will not be as expected.

2. serialize()

   <?php echo serialize( $devideTokens );
   

The problem of serializing is the rigidity of the resulting information. Once you have serialized an array you cannot do anything useful without de-serializing it. Hence it is a more suitable format for storing data that does not require normalization.

3. json_encode()

   <?php echo json_encode( $deviceTokens );
   

The most flexible of the options because for being universal can be manipulated even by other languages.

And you have the option to iterate, if all else fails:

$output = NULL;

foreach( $deviceTokens as $key => $value ) {

    // É óbvio que você não vai fazer assim :p

    $output . 'Chave: ' . $key . "\nValor: " . $value;
}

echo $output;

Answer 2

Okay, I got what I wanted!

Thank you.

Below the code:

$meuArray = array();

$meuArray []= "A";
$meuArray []= "k";
$meuArray []= "Blan";


for($lop = 0; $lop < count($meuArray);$lop++){

echo ($meuArray[$lop]);


}