I would like to know the following, how can I "draw" an image with PHP?
I have seen on some websites, PHP pages that make an image on time. What I want is something simple, just a background with border and a text.
If it is not possible, only a simple text already makes me happy.
I already know that I need to set Content-Type para image/png . I just need the functions to "draw" the image.
For this task you can use GD or imagemagick / imagick, drawing example with GD:
Source: link
<?php
// cria uma imagem de 200 x 200
$canvas = imagecreatetruecolor(200, 200);
// Aloca cores
$pink = imagecolorallocate($canvas, 255, 105, 180);
$white = imagecolorallocate($canvas, 255, 255, 255);
$green = imagecolorallocate($canvas, 132, 135, 28);
// Desenha o retangulo com estas cores
imagerectangle($canvas, 50, 50, 150, 150, $pink);
imagerectangle($canvas, 45, 60, 120, 100, $white);
imagerectangle($canvas, 100, 120, 75, 160, $green);
header('Content-Type: image/png');
imagepng($canvas);
imagedestroy($canvas);
Source: link
<?php
//Cria uma imagem de 100 x30
$im = imagecreate(100, 30);
//Desenha um fundo branco
$bg = imagecolorallocate($im, 255, 255, 255);
$textcolor = imagecolorallocate($im, 0, 0, 255);
// Escreve um texto
imagestring($im, 5, 0, 0, 'Ola mundo!', $textcolor);
header('Content-type: image/png');
imagepng($im);
imagedestroy($im);
Requires PHP > = 5.1.3 and ImageMagick > = 6.2.4, for installation see: link
<?php
$image = new Imagick();
$draw = new ImagickDraw();
$pixel = new ImagickPixel('gray');
/* Gera a nova imagem */
$image->newImage(800, 75, $pixel);
/* Cor do texto */
$draw->setFillColor('black');
/* Fonte e tamnanho da fonte */
$draw->setFont('Bookman-DemiItalic');
$draw->setFontSize( 30 );
/* Adiciona o texto */
$image->annotateImage($draw, 10, 45, 0, 'Ola mundo!');
/* Define o tipo da imagem */
$image->setImageFormat('png');
header('Content-type: image/png');
echo $image;
For more details see the documentation: