How to save byte array in PHP file?

Question

I have a array of bytes which is an image that is saved in BD, which method to use to save on hard drive?

Answer 1

You need package the array and record. Well roughly speaking since you have not given details of what you want, nor demonstrated what you have already done you can do so:

foreach ($imagem as $byte) {
    $binario .= pack("C", $byte); 
}
$arquivo = fopen("arquivo.bin", 'wb');
fwrite($arquivo, $binario);
fclose($arquivo);

I put in the Github for future reference.

The exact way may vary according to your need.

If the format is already in binary can only do the recording:

$arquivo = fopen("arquivo.bin", 'wb');
fwrite($arquivo, $imagem);
fclose($arquivo);