how to count number of pixels in image (php)

Question

Please help me to count number of pixels in image, or put out the array of RGB.

So this is the script thet give me one element from array:

Answer 1

The number of pixels in an image is simply the height multiplied by the width.

However, I think this is what you want:

<?php
    $img = "1.png";
    $imgHand = imagecreatefrompng("$img");
    $imgSize = GetImageSize($img);
    $imgWidth = $imgSize[0];
    $imgHeight = $imgSize[1];
    echo '<img src="'.$img.'"><br><br>';

    // Define a new array to store the info
    $pxlCorArr= array();

    for ($l = 0; $l < $imgHeight; $l++) {
        // Start a new "row" in the array for each row of the image.
        $pxlCorArr[$l] = array();

        for ($c = 0; $c < $imgWidth; $c++) {
            $pxlCor = ImageColorAt($imgHand,$c,$l);

            // Put each pixel's info in the array
            $pxlCorArr[$l][$c] = ImageColorsForIndex($imgHand, $pxlCor);
        }
    }

    print_r($pxlCorArr); 
?>

This will store all the pixel data for the image in the pxlCor and pxlCorArr arrays, which you can then manipulate to output what you want.

The array is a 2d array, meaning you can refrence an individual pixel with an $pxlCorArr[y][x] starting at [0][0].