Question

in php, is there an easy way to draw text with imagettftext and imagefilledarc at center, considering font and font size?

Example:
I’m using Verdana Bold, size 16 and i want to center “1234567890” text in my circle.

$font = './verdanab.ttf';
$fsize = 16;
$text = "1234567890";
imagefilledarc ($im, $cx, $cy, $w, $h, 0, 360, $color, 0);
imagettftext   ($im, $fs, 0, $x, $y, $black, $font, $text);

how can i do it automatically resized, considering font changing ?

Could also use imagefontwidth ?
Is there a function that count font pixels width?

Sample shot:

Answer 1

Solved using

$txtSize = imagettfbbox($fs, 0, $font, $text); // idx [2] is text width in pixel

$buffer = 20;
$w = $h = $txtSize[2] + $buffer;
$x = $cx - ($txtSize[2]/2);

imagefilledarc ($im, $cx, $cy, $w, $h, 0, 360, $color, 0);
imageAlphaBlending($im, true);
imagettftext   ($im, $fs, 0, $x, $y, $black, $font, $text);

thanks.