My problem is Q title.
I tried http://www.php.net/manual/en/function.imageloadfont.php and:
imageloadfont();
but i do not see any change and i get error:
Warning: imageloadfont(): gd warning: product of memory allocation multiplication would exceed INT_MAX, failing operation gracefully in E:\xampp\htdocs\test\texts\text01.php on line 3
Warning: imageloadfont(): Error reading font, invalid font header in E:\xampp\htdocs\test\texts\text01.php on line 3
Edit:
My font.
To quote myself, you should be using imagettftext(), not imagestring().
Example usage, abbreviated/adapted from the manual page:
$im = imagecreatetruecolor(400, 30);
// Create some colors and set background to white.
$white = imagecolorallocate($im, 255, 255, 255);
$black = imagecolorallocate($im, 0, 0, 0);
imagefilledrectangle($im, 0, 0, 399, 29, $white);
// The text to draw
$text = 'Testing...';
// Replace path by your own font path
$font = 'btitr.ttf';
// Add the text
imagettftext($im, 20, 0, 10, 20, $black, $font, $text);
// Using imagepng() results in clearer text compared with imagejpeg()
imagepng($im, 'path_to_file.png');
imagedestroy($im);
Related
I want to ask on how to create an image based on updated data on my site?
For example like this image:
[![x][1]][1]
The details of the image is get from this url: [Pine][2].
That's the full code:
It's show an image with updated data based on that link.
Can someone show me what I have to find in google for the details like this? what type is this code?
You should use GD library or Imagick(ImageMagick)
Example of image creation with GD
To install or enable already installed GD extension (https://stackoverflow.com/a/44720393/8579824)
<?php
// Set the content-type
header('Content-type: image/png');
// Create the image
$im = imagecreatetruecolor(400, 30);
// Create some colors
$white = imagecolorallocate($im, 255, 255, 255);
$grey = imagecolorallocate($im, 128, 128, 128);
$black = imagecolorallocate($im, 0, 0, 0);
imagefilledrectangle($im, 0, 0, 399, 29, $white);
// The text to draw
$text = 'Testing...';
// Replace path by your own font path
$font = 'arial.ttf';
// Add some shadow to the text
imagettftext($im, 20, 0, 11, 21, $grey, $font, $text);
// Add the text
imagettftext($im, 20, 0, 10, 20, $black, $font, $text);
// Using imagepng() results in clearer text compared with imagejpeg()
imagepng($im);
imagedestroy($im);
?>
I'm trying to use the imagettftext() to add text to an image via PHP. So far I've gone through about 6 different tutorials, trying to get it to work, and I have had no success. I'm currently trying this code from the php documentation page.
<?php
// Set the content-type
header('Content-Type: image/png');
// Create the image
$im = imagecreatetruecolor(400, 30);
// Create some colors
$white = imagecolorallocate($im, 255, 255, 255);
$grey = imagecolorallocate($im, 128, 128, 128);
$black = imagecolorallocate($im, 0, 0, 0);
imagefilledrectangle($im, 0, 0, 399, 29, $white);
// The text to draw
$text = 'Testing...';
// Replace path by your own font path
$font = 'arial.ttf';
// Add some shadow to the text
imagettftext($im, 20, 0, 11, 21, $grey, $font, $text);
// Add the text
imagettftext($im, 20, 0, 10, 20, $black, $font, $text);
// Using imagepng() results in clearer text compared with imagejpeg()
imagepng($im);
imagedestroy($im);
?>
However, nothing shows up. I have the GD library installed, as well as freetype enabled. I have arial.ttf in the same directory as the php file, and I cannot figure out why it wont work. All I get is a blank image.
EDIT: This is the error message "[19-Jan-2014 16:31:07] PHP Warning: imagettftext(): Could not find/open font in /var/www/php/bb/test.php on line 21"
I was about about to tell you to type the real path of the ttf instead of the relative path.
putenv('GDFONTPATH=' . realpath('.'));
or
$font = '/home/user/arial.ttf';
I'm useing Joomla 1.5. I have the script for create image with text over It, but It doesn't work for me:
<?php
// Set the content-type
header('Content-Type: image/png');
// Create the image
$im = imagecreatetruecolor(400, 30);
// Create some colors
$white = imagecolorallocate($im, 255, 255, 255);
$grey = imagecolorallocate($im, 128, 128, 128);
$black = imagecolorallocate($im, 0, 0, 0);
imagefilledrectangle($im, 0, 0, 399, 29, $white);
// The text to draw
$text = 'Testing...';
// Replace path by your own font path
$font = "ARIAL.TFF";
// Add some shadow to the text
imagettftext($im, 20, 0, 11, 21, $grey, $font, $text);
// Add the text
imagettftext($im, 20, 0, 10, 20, $black, $font, $text);
// Using imagepng() results in clearer text compared with imagejpeg()
imagepng($im);
imagedestroy($im);
?>
I don't understand why this doesn't work. I found many examples in google, I used It, but always the same.
This error in english means: Image "http://juokoera.lt/a.php" can't be shown, because It have problems (errors).
I found in google, that can be fault by my hosting, I changed It, but the same problem. Help me, please if you can. Thank you very much.
UPDATED:
I got the same error when, code looks like:
dasfasdf
dfas
<?php
header('Content-Type: image/png');
$im = imagecreatetruecolor(400, 30);
$white = imagecolorallocate($im, 255, 255, 255);
$grey = imagecolorallocate($im, 128, 128, 128);
$black = imagecolorallocate($im, 0, 0, 0);
imagefilledrectangle($im, 0, 0, 399, 29, $white);
$text = 'Testing...';
$font = "ARIAL.TTF";
imagettftext($im, 20, 0, 10, 20, $black, $font, $text);
imagepng($im);
imagedestroy($im); ?>
How can I use additional text in the same php?
I think your problem is here:
$font = "ARIAL.TFF";
in fact, on your server a file named "ARIAL.TFF" doesn't exist, the font extension you are looking for is TTF, not TFF, and in fact "ARIAL.TTF" on your server exists and i just downloaded it, correct that line to:
$font = "ARIAL.TTF";
After that, you should be able to write text on your image
Hope this helps
UPDATE
After question update, i noticed that an header is sent after printing out some text.
Nothing has to be printed out before the header() function, in order for headers to be correctly sent.
In the PHP manual>header() it is the first thing that is explained:
Remember that header() must be called before any actual output is sent, either by normal HTML tags, blank lines in a file, or from PHP. It is a very common error to read code with include, or require, functions, or another file access function, and have spaces or empty lines that are output before header() is called. The same problem exists when using a single PHP/HTML file.
I've tried to write text in an image just for testing purposes because my Zabbix install is not writing text in the graphs. I've copied the code bellow from the php.net website (http://php.net/manual/en/function.imagettftext.php)
<?php
// Set the content-type
header('Content-Type: image/png');
// Create the image
$im = imagecreatetruecolor(400, 30);
// Create some colors
$white = imagecolorallocate($im, 255, 255, 255);
$grey = imagecolorallocate($im, 128, 128, 128);
$black = imagecolorallocate($im, 0, 0, 0);
imagefilledrectangle($im, 0, 0, 399, 29, $white);
// The text to draw
$text = 'Testing...';
// Replace path by your own font path
$font = '/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf';
// Add some shadow to the text
imagettftext($im, 20, 0, 11, 21, $grey, $font, $text);
// Add the text
imagettftext($im, 20, 0, 10, 20, $black, $font, $text);
// Using imagepng() results in clearer text compared with imagejpeg()
imagepng($im);
imagedestroy($im);
?>
Does anyone have an idea?
I've figure out what was the problem here. Permissions to access the truetype file. PHP could not access the file so it couldn't write.
I was not seeing the problem because I was not running with E_ALL. Now everything is running smoothly
My issue was a wrong offset. The image was showing nothing, no text, no errors in the source code, just a blank file. The paths were correct. I thought there was an error in the ttf font but turns out it was just wrong positioning.
Here's what helped me to see a bit of the text:
imagettftext($im, 20, 0, 20, 20, $fg, $font, $text);
This shows a bit of text on the top right.
Full working code:
putenv('GDFONTPATH=' . dirname(__FILE__));
$font = 'arial'; // located next to the script
imagettftext($im, 20, 0, 20, 20, $fg, $font, $text);
It is a GD function and you will need php-gd installed with gettext & ttf support.
-$
What is the best way to display underlined text and output the result as image with GD or any other library?
You can try using the Unicode underline combining character U+0332.
<?php
// Set the content-type
header('Content-type: image/png');
// Create the image
$im = imagecreatetruecolor(400, 30);
// Create some colors
$white = imagecolorallocate($im, 255, 255, 255);
$black = imagecolorallocate($im, 0, 0, 0);
imagefilledrectangle($im, 0, 0, 399, 29, $white);
// The text to draw
$text = "̲U̲d̲e̲r̲l̲i̲n̲e";
// Replace path by your own font path
$font = 'arial.ttf';
// Add the text
imagettftext($im, 20, 0, 10, 20, $black, $font, $text);
// Using imagepng() results in clearer text compared with imagejpeg()
imagepng($im);
imagedestroy($im);
?>
There are lots of FREE PHP CAPTCHA out there that come with a lot of customization, download one and see what exactly happens behind the scene. Also have a look at this link
HTH
I am using this...
$font = imageloadfont($font_file);
$font_width = ImageFontWidth($font);
$font_height = ImageFontHeight($font);
$str_width = strlen($text)*$font_width;
ImageLine($image, $left, $top+$font_height, $left+$str_width, $top+$font_height, $color);