php-gdHow to output image to browser
<?php
$im = imagecreatetruecolor(400, 300);
$c_black = imageColorAllocate($im, 0,0,0);
$c_green = imageColorAllocate($im, 46,204,64);
imageellipse($im, 200, 150, 100, 100, $c_green);
ob_start();
imagejpeg($im, null, 95);
$data = ob_get_clean();
echo '<img src="data:image/jpeg;base64,' . base64_encode( $data ) . '" />';ctrl + cimagecreatetruecolorcreates true color GD image object with specified width & height | imageColorAllocatecreates color object to later use in image |
imageellipsecreates ellipse with specified coordinates, radius and border color | ob_start()start buffering output (instead of outputting) |
imagejpegsaves image as JPEG (returns data if second argument is null, as in our case) | ob_get_clean()returns buffered content (image data in our case) |
data:image/jpeg;base64,allows us to use image data string in | |