PHP imagettftext partially bold

Wietse de Vries picture Wietse de Vries · Jul 13, 2012 · Viewed 12.6k times · Source

I'm training my PHP skills to generate images. I need only one thing which doesn't work. I don't think it's possible on the way I want, but there should be another way. The code I already have is this:

<?php
$textSize = 10;
$text = addslashes("Wietse: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed malesuada aliquet dolor, vitae tristique lectus imperdiet nec. Pellentesque et.");
$maxWidth = 448;

//Create image
$im = imagecreate(468, 60);

// Black background and White text
$bg = imagecolorallocate($im, 0, 0, 0);
$textColor = imagecolorallocate($im, 255, 255, 255);

// Split in multiple lines
$words = explode(' ', $text);
$lines = array();
$line = "";
foreach ($words as $word) {
    $box = imagettfbbox($textSize, 0, './arial.ttf', $line . $word);
    $width = $box[4] - $box[0];
    if($width > $maxWidth) {
        $line = trim($line);
        $line .= "\n";
    }
    $line .= $word . ' ';
}

// Write the text in the image
imagettftext($im, $textSize, 0, 10, $textSize + 10, $textColor, './arial.ttf', $line); // write text to image

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

Which results in this image:

Image

It works fine, but my name, Wietse, should be Bold. I don't think it's possible to do this on a simple way, but it should be possible. I can add another imagettftext() with a Bold Arial font, but the Lorum ipsum text should start next to the name and the second line should continue on the same X coordinates as the name. Like it is now. I also have another wish, but I think it's too difficult because this text can have any position. But if someone knows how to do this he's great. This is that the link (http://www.google.com) has an underline. I don't think I need to tell further information.

Thanks on purpose!

Answer

Waska Chaduneli picture Waska Chaduneli · Feb 1, 2016

In almost every font, this solution will work.

If you are creating this text:

imagettftext($jpg_image, 35, 0, $x, $y, $color, $font_path, $text2);

and if you want bold, you should add these:

imagettftext($jpg_image, 35, 0, $x, $y, $color, $font_path, $text2);
imagettftext($jpg_image, 35, 0, $x, $y+1, $color, $font_path, $text2);
imagettftext($jpg_image, 35, 0, $x, $y+2, $color, $font_path, $text2);
imagettftext($jpg_image, 35, 0, $x+1, $y, $color, $font_path, $text2);
imagettftext($jpg_image, 35, 0, $x+2, $y, $color, $font_path, $text2);