From text to images in PHP - php

Please take look the demo site at
http://jsfiddle.net/Alidad/fexGj/
That demo is called "Image title", my next step is to convert both text and images as one group to images so that way i can click right mouse to copy and paste over.
However, there is PHP code that allow me to convert into the image from text but I can't hardly figure out how can I convert from "image title" (demo) into the HTML!
Here is sample PHP code but I can't figure out how to combine it!
<?php
// Create a 100*30 image
$im = imagecreate(100, 30);
// White background and blue text
$bg = imagecolorallocate($im, 255, 255, 255);
$textcolor = imagecolorallocate($im, 0, 0, 255);
// Write the string at the top left
imagestring($im, 5, 0, 0, 'Hello world!', $textcolor);
// Output the image
header('Content-type: image/png');
imagepng($im);
imagedestroy($im);
?>
Have any help me please how to convert this to images from jQuery code!
AM

Easiest way would probably be to just do:
// index.html
<img src="render_image.php?text=Hello World" />
and then:
// render_image.php
<?php
// Create a 100*30 image
$im = imagecreate(100, 30);
// White background and blue text
$bg = imagecolorallocate($im, 255, 255, 255);
$textcolor = imagecolorallocate($im, 0, 0, 255);
// Write the string at the top left
imagestring($im, 5, 0, 0, $_GET['text'], $textcolor);
// Output the image
header('Content-type: image/png');
imagepng($im);
imagedestroy($im);
?>
Using this with slight modifications to your javascript code should work.
More info on using the $_GET variable: http://php.net/manual/en/reserved.variables.get.php

Related

transparent image in php

I am executing my following code for creating a transparent image but everytime it shows me black background.
kindly tell me my my fault in the code.
<?php
//set the content type
header('Content-type: image/jpeg');
//create the image
$im = imagecreatetruecolor(250, 200);
$black = imagecolorallocate($im, 255, 255, 255);
$blue = imagecolorallocate($im, 0, 0, 255);
// Make the background transparent
imagecolortransparent($im, $black);
//text to draw
$text=$_POST['text'];
//font path
$font = '/usr/share/fonts/truetype/droid/DroidSans.ttf';
// Add the text
imagettftext($im, 15, 0, 50, 50, -$blue, $font, $text);
//view the image
imagejpeg($im);
imagedestroy($im);
?>
You cannot make jpeg images transparent. Use png instead
Change below 2 lines:
header('Content-type: image/png');
imagepng($im);
Update
Reference Link: create transparent png image

Building a PHP script to create new image

I'm on my way to create a new script for my personal website. I want some kind of function where visitors can write something in an input field and then press generate image.
The script should then take a background image and insert the visitors text on top.
My question is: What is the php code to actually generate the image file and how do i connect the input data to the image?
I do not need full code examples if you don't have the time, i just need the basis practice of how to setup such a system.
Try this code:
$filename = "layout.jpg";
$im = #imagecreatefromjpeg($filename);
$font = "tahoma.ttf";
$black = imagecolorallocate($im, 0, 0, 0);
$white = imagecolorallocate($im, 255, 255, 255);
imagettftext($im, 15, 0, 50, 50, $black, $font, $_POST['message_from_user']);
header('Content-Type: image/jpeg');
imagejpeg($im, null, 100);
imagedestroy($im);
layout.jpg is background image, tahoma.ttf is font file
Both files should be placed in the same folder.
This code would generate jpg-image with user string.
More details you would get by searching "gd in php".
do something like this:
$text = 'put ur txt here';
$height = 25;
$width = 65;
$image_p = imagecreate($width, $height);
$black = imagecolorallocate($image_p, 0, 0, 0);
$white = imagecolorallocate($image_p, 255, 255, 255);
$font_size = 14;
imagestring($image_p, $font_size, 5, 5, $text, $white);
imagejpeg($image_p, 'file name here', 80);

how to save image after editing in php

i have a image and i wrote some text on this image by using php "imagettftext" function. now i don't know that how it will save automatic.
header('Content-Type: image/png');
// Create the image
$im = imagecreatefromjpeg('image-1.jpg');
// 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 = 'www.blockprintsonline.com';
// Replace path by your own font path
$font = 'arial.ttf';
list($width, $height, $type, $attr) = getimagesize($get_image);
$width1=$width*20/100;
$height1=$height*50/100;
$font_size=$width*4/100;
// Add some shadow to the text
//imagettftext($im, 30, 0, 11, 21, $grey, $font, $text);
// Add the text
imagettftext($im, $font_size, 0, $width1, $height1, $black, $font, $text);
// Using imagepng() results in clearer text compared with imagejpeg()
imagepng($im);
imagedestroy($im);
If you want to save the image to a file, check out the docs for the imagepng() function here.
By passing a filename as the second argument it will save the image to a file, e.g:
imagepng($im, "path/to/save/image/in.png");
<?php
// Save the image as 'simpletext.png'
imagepng($im, 'simpletext.png');
// Free up memory
imagedestroy($im);
?>
this is an example on how to save an image.
If you check the documentation for imagepng you would see that you can provide a filename. That would save the image to disk

Convert basic html file to a Image

Is there a php or javascript method of converting a simple html file with text to a JPEG image and saving it automatically. I would like to be able to pull it into Outlook 2007 as "embedded content" for a company's dynamic disclaimer
Any help would be appreciated
UPDATE
i have found the following script that produces a image with only a string:
<?php
$text = "This is a example";
header("Content-Type: image/png");
$im = #imagecreate(700, 300)
or die("Cannot Initialize new GD image stream");
$background_color = imagecolorallocate($im, 255, 255, 255);
$text_color = imagecolorallocate($im, 0, 0, 0);
imagestring($im, 12, 5, 5, $text, $text_color);
imagepng($im);
imagedestroy($im);
?>
Is there a way to get <br> tags to work in a php string?
use the imageTTFtext() function and concatenation the <br /> tag.
<?php
header(“Content-type: image/gif”);
$string = 'This is another text i want to include';
$im = imagecreate( 400, 200 );
$red = imagecolorallocate($image, 255,0,0);
$blue = imagecolorallocate($image, 0,0,255 );
$font = “/usr/local/jdk121_pre-v1/jre/lib/fonts/LucidaSansRegular.ttf”;
imageTTFtext( $im, 50, 0, 20, 100, $blue, $font, “This is some text!” );
imagegif($im);
?>
I created a canvas with a width of 400 pixels, you'll need a FreeType font in addition to your GD library. with the imageTTFtext() function i defined a width of 50 and angle of 0 of the text. so to make the string more complex, you can place the <br /> tag like this:
imageTTFtext( $im, 50, 0, 20, 100, $blue, $font, “This is some text!<br/>”.$string."some other text" );
Hope you get the picture now...

Outputting image with underlined text using php GD library

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);

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