Create transparent png with text from scratch in php

Question

All the examples I've found on the web seem to create pngs with text from an existing png. Is it possible to create a transparent png from scratch and then add text?

The code ive got so far follows (but it doesnt work. just outputs a blank image source)

<?php
    $width = 150;
    $height = 30;
    $text = "My Text";
    $fontsize = 5;

    $im = imagecreate($width, $height);
    $transcolor = imagecolortransparent($im);

    imagestring($im, $fontsize, 0, 0, $text, $transcolor);

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

http://stackoverflow.com/questions/6109832/php-gd-create-a-transparent-png-image — Jauzsika, Dec 14 '11 at 10:43

score 21 · Accepted Answer · edited Jan 24 '14 at 21:00

21

<?php
    $font = 25;
    $string = 'My Text';
    $im = @imagecreatetruecolor(strlen($string) * $font / 1.5, $font);
    imagesavealpha($im, true);
    imagealphablending($im, false);
    $white = imagecolorallocatealpha($im, 255, 255, 255, 127);
    imagefill($im, 0, 0, $white);
    $lime = imagecolorallocate($im, 204, 255, 51);
    imagettftext($im, $font, 0, 0, $font - 3, $lime, "droid_mono.ttf", $string);
    header("Content-type: image/png");
    imagepng($im);
    imagedestroy($im);
?>

Use imagestring instead of imagettftext if you don't want custom font.

edited Jan 24 '14 at 21:00

johnsampson

376
3
14

answered Dec 14 '11 at 10:42

Dejan Marjanović

19,244
7
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I want to add HTML in text like: $string = '
My Text
'; How can I achieve this. Can you please help? – Ravi May 03 '22 at 11:54

luastoned · Answer 2 · 2011-12-14T11:55:38.950

Here's the solution based on your original code.

<?php
    $width = 640;
    $height = 480;
    $text = "My Text";
    $fontsize = 5;

    $img = imagecreate($width, $height);

    // Transparent background
    $black = imagecolorallocate($img, 0, 0, 0);
    imagecolortransparent($img, $black);

    // Red text
    $red = imagecolorallocate($img, 255, 0, 0);
    imagestring($img, $fontsize, 0, 0, $text, $red);

    header('Content-type: image/png');
    imagepng($img);
    imagedestroy($img);
?>

score 0 · Answer 3 · answered May 14 '20 at 12:01

I Think GD is one of the most popular for generating images, with imagettftext.

 <?php
    $text = 'SOME TEXT';

    $font="c:/windows/Fonts/Latinwd.ttf"; //Load font file for windows

    $im = ImageCreate(700, 140);

    $bla = imagecolorallocate($im, 0, 0, 0);
    imagecolortransparent($im, $bla); //transparent background

    $black = imagecolorallocate($im, 255,255,255);
    ImageTTFText ($im, 38, 0, 10, 40, $black, $font, $text);

    header('Content-Type: image/png');
    ImagePNG($im, 'name.png');
    imagedestroy($im);
    ?>

Create transparent png with text from scratch in php

3 Answers3

My Text