How to create images for dynamic text using PHP? - php

I want to create images for my dynamic text.
My problem is that I am reading folder name from some specific directory.
So folder name will be what ever but client wants that folder name should come as the images only.
So I thought that I will place one image with the same name as folder on any unique name.
But client don't want to create new images if they create a new folder.
So how can I do this with PHP?
I need to use some specific background color for image and also want to use some specific font for the text in image.

See imagefttext() in the examples section

From php.net:
http://pl2.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
$font = 'arial.ttf';
// Add some shadow to the text
imagettftext($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);
?>

Related

Create an image from data details in site

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);
?>

Hindi text to Image - words not appearing properly PHP

I want to display hindi words on an image. Here is the code for it, it is working properly but it does not display "chote E ki matra" correctly. Example "अब हिन्दी" is displayed as : http://prntscr.com/8rj8mq
Also hindi.txt file contains these :
अब हिन्दी
मे टाइप
करना बहुत आसान है
Below php script read one line randomly and put it on image and display it. Can someone help me to correct this....
<?php
$word= file("hindi.txt");
$random = rand(0,2);
$text = $word[$random];
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
// Replace path by your own font path
$font = 'Mangal.ttf';
// Add some shadow to the text
imagettftext($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);
?>

imagettftext wont work; text doesn't show up

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';

Joomla 1.5. Text over image doesn't work

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.

PHP Image not displaying when accessed through controller

I am designing my own PHP MVC
in which any Library file can be used by following steps:
Loading the File $this->registry->load->lib('Image');
Accessing Method from the file $this->registry->Image->anyMethod();
The first line loads the file Image.php located in lib folder and returns an instance
as $this->registry->Image
then using that instance, method anyMethod() from the file can be accessed as$this->registry->Image->anyMethod(); fromController
PROBLEM is that, I am not able to Output any image !
the following code do not work if accessed from Controller but works if directly used !
codes taken from http://in2.php.net/imagettftext
public function anyMethod()
{
// 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($im);
}
Please Help , I am stuck.
Note: By adding ob_clean(); before imagepng($im); seems working but without text on the Image .
Add an exit; call after destroying the image to prevent any further output being added by your MVC system:
imagepng($im);
imagedestroy($im);
exit;
Also check there are no other Content-type headers being issued before your anyMethod() call.

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