chart

<?php
    $values = array();

    for($i = 0; $i < 99; $i++) {
        $values[$i] = rand(1, 10);
    }

    $values = array(count(array_keys($values, 1)),
                    count(array_keys($values, 2)),
                    count(array_keys($values, 3)),
                    count(array_keys($values, 4)),
                    count(array_keys($values, 5)),
                    count(array_keys($values, 6)),
                    count(array_keys($values, 7)),
                    count(array_keys($values, 8)),
                    count(array_keys($values, 9)),
                    count(array_keys($values, 10)));

    $columns  = count($values);

    $width = 1000;
    $height = 800;

    $padding = 20;

    $column_width = $width / $columns ;

    $im = imagecreate($width + 100,$height);
    $gray = imagecolorallocate ($im,0xcc,0xcc,0xcc);
    $gray_lite = imagecolorallocate ($im,0xee,0xee,0xee);
    $gray_dark = imagecolorallocate ($im,0x7f,0x7f,0x7f);
    $white = imagecolorallocate ($im,0xff,0xff,0xff);

    imagefilledrectangle($im,0,0,$width + 100,$height,$white);

    $max_value = max($values);

    for($i = 0; $i < $columns; $i++) {
        $column_height = ($height / 150) * (($values[$i] / $max_value) * 100);

        $x1 = $i * $column_width + $padding;
        $y1 = $height - $column_height;
        $x2 = (($i + 1) * $column_width);
        $y2 = $height - 50;

        imagefilledrectangle($im, $x1, $y1, $x2, $y2, $gray);
        imagestring($im, 10, $width / 10 * $i + $width / 18, $height - $column_height, $values[$i], $gray_dark);
        imagestring($im, 10, $width / 10 * $i + $width / 18, $height - 20, ($i + 1), $gray_dark);
    }

    imagestring($im, 10, $width + 25, $height - 35, "Numbers", imagecolorallocate ($im,0,0,0));
    imagestring($im, 10, 25, 200, "Count", imagecolorallocate ($im,0,0,0));
    imagefilledrectangle($im, 10, $width - 25, 5, 200, imagecolorallocate ($im,0,0,0));
    imagefilledrectangle($im, 0, $height - 40, $width + 100, $height - 35, imagecolorallocate ($im,0,0,0));

    header ("Content-type: image/png");
    imagepng($im);
?>