php convert byte array to image

Question

I have an array, below is part of it (it is over 3000 items) and I need to convert the byte data to an image (jpg) any ideas how I do this?

Thanks.

[0] => 255
    [1] => 216
    [2] => 255
    [3] => 224
    [4] => 0
    [5] => 16
    [6] => 74
    [7] => 70
    [8] => 73
    [9] => 70
    [10] => 0
    [11] => 1
    [12] => 1
    [13] => 1
    [14] => 0
    [15] => 96
    [16] => 0
    [17] => 96
    [18] => 0
    [19] => 0
    [20] => 255

what was the process by which you received the array in your question? — castis
– castis, Commented Jan 13, 2015 at 16:58
Is the array just the numerical representation of the image data, i.e. if I encounter 216, does it mean that the byte should have the value 216? — T0xicCode
– T0xicCode, Commented Jan 13, 2015 at 16:58
possible duplicate of Convert binary byte array to image in PHP — Jeff Lambert
– Jeff Lambert, Commented Jan 13, 2015 at 16:59

Le_Morri · Accepted Answer · 2015-01-13 17:01:36Z

2

This should be working

$fp = fopen("image.jpg", "wb");

$len = count($array);

for ($i = 0; $i < $len; $i++) {
    $data = pack("C*",$array[$i]);
    fwrite($fp, $data);
}
fclose($fp);

adopted from here

answered Jan 13, 2015 at 17:01

Le_Morri

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