Web студия "GrandView"

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imagecreate

scottlindh pwnd at hushmail dot com
19-Aug-2007 10:40


to install on UBUNTU do the following..



sudo apt-get install php5-gd



After installing the package I restarted the apache



sudo /etc/init.d/apache reload



goto love ubuntu...

Sohel Taslim
25-Jul-2007 12:22


It is easy and simple example to convert Text to Image with selected font. 

It helps me to display Bangla text as image when users have no installed bangla font.



I hope it can help you too!



<?php

//Kip the font file together or write proper location.

makeImageF("Life in PHP.","CENTURY.TTF");



function makeImageF($text, $font="CENTURY.TTF", $W=200, $H=20, $X=0, $Y=0, $fsize=18, $color=array(0x0,0x0,0x0), $bgcolor=array(0xFF,0xFF,0xFF)){

        

    $im = @imagecreate($W, $H)

        or die("Cannot Initialize new GD image stream");

        

    $background_color = imagecolorallocate($im, $bgcolor[0], $bgcolor[1], $bgcolor[2]);        //RGB color background.

    $text_color = imagecolorallocate($im, $color[0], $color[1], $color[2]);            //RGB color text.

            

    imagettftext($im, $fsize, $X, $Y, $fsize, $text_color, $font, $text);

    

    header("Content-type: image/gif");                

    return imagegif($im);

}



?>

Pawka
14-Apr-2007 01:31


To make the gd library available for Apache2/mod_php on Fedora Linux the following commands are required:

1) yum install php-gd

2) /etc/init.d/httpd restart

php dot net at kingsquare dot nl
07-Jan-2007 03:02


To create an image from a PSD file, you can use imagecreatefrompsd(). It is available for download here: http://www.kingsquare.nl/phppsdreader/ . It returns a resource like the other ImageCreateFrom - functions

tc_ at anti dot gmx dot ch dot spam
19-Sep-2006 04:50


Small piece of code to display a preview of a file in an image (usefull for thumbnail view of a folder etc.)



<?php

$file = "test.txt"; //FILEADDRESS

$size = "100"; //IMAGE SIZE

$data = file($file);

$im = @ imagecreate($size, $size) or die();

$bc = imagecolorallocate($im, 255, 255, 255);

$tc = imagecolorallocate($im, 0, 0, 0);

$lines = (int) $size / 10;

for ($t = 0; $t < $lines; $t++)

{

    imagestring($im, 3, 4, 4, $data[$t], $tc);

    imagestring($im, 3, 4, 4 + ($t * 10), $data[$t], $tc);

}

header("Content-type: image/png");

imagepng($im);

imagedestroy($im);

?>



Maybe it will be usefull for somebody.

Ortreum
07-Sep-2006 04:45


Use image as javascript test



There are two files - an image and an executive file. The image is loaded if the JavaScript is enabled. After (!) the page is loaded $_SESSION['js'] + 0 is 0 or 1.



the image (js.img.php):

<?php

session_start();

$_SESSION['js'] = 1;

header('Content-type: image/gif');

imagegif($im = imagecreate(1, 1));

imagedestroy($im);

?>



the html file (file.php):

<html>

<head>

<!--

<script type="text/javascript">

    var img = new Image();

    img.src = "js.img.php";

</script>

-->

</head>

<body>

<?php

if ($_SESSION['js'] . '' == '') echo 'Not checked for JavaScript.';

else if ($_SESSION['js'] + 0 == 0) echo 'JavaScript is disabled.';

if ($_SESSION['js'] + 1 == 1) echo 'JavaScript is enabled.';

?>

</body>

</html>



There are much more hidden actions that you can do by "pictures".

help at nanomc dot com
08-Nov-2005 11:29


// A simple XY graph 



<html>

<head>

        

 <title>XY Graph</title>



<h2>Practice XY Graph</h2>

</head>

<body>



<?php 

$left = 0;

$top = 0;

$x_size = 400;

$y_size = 400;



$char_width = 8;

$char_height = 11;



$x_start = $x_left + 100;

$y_start = $top + $char_height * 1.5;

$x_end = $x_start + $x_size;

$y_end = $y_start + $y_size;

$right = $x_start + $x_size + 40;

$bottom = $y_start + $y_size + $char_height * 1.5;



$graph_n = 100;

for($i = 0; $i < $graph_n; $i++ )

    {

    $graph_x[$i] = $i;

    $graph_y[$i] = $i * $i;

    }



    $min_x = 9e99;

    $min_y = 9e99;

    $max_x = -9e99;

    $max_y = -9e99;



    $avg_y = 0.0;

    

    for($i = 0; $i < $graph_n; $i++ )

        {

        if( $graph_x[$i] < $min_x )

            $min_x = $graph_x[$i];



        if( $graph_x[$i] > $max_x )

            $max_x = $graph_x[$i];



        if( $graph_y[$i] < $min_y )

            $min_y = $graph_y[$i];



        if( $graph_y[$i] > $max_y )

            $max_y = $graph_y[$i];



        $avg_y += $graph_y[$i];

        }

    

    $avg_y = $avg_y / $graph_n;



    $min_x = 0;

    $min_y = 0;

    $max_x += $max_x * 0.05;

    $max_y += $max_y * 0.05;



$image = ImageCreate($right - $left, $bottom - $top);

$background_color = imagecolorallocate($image, 255, 255, 255);

$text_color = imagecolorallocate($image, 233, 14, 91);



$grey = ImageColorAllocate($image, 204, 204, 204); 

$white = imagecolorallocate($image, 255, 255, 255);

$black = imagecolorallocate($image, 0, 0, 0);

$red = imagecolorallocate($image, 255, 0, 0);



imagerectangle($image, $left, $top, $right - 1, $bottom - 1, $black );

imagerectangle($image, $x_start, $y_start, $x_end, $y_end, $grey );



for($i = 0; $i < $graph_n; $i++ )

   {

   $pt_x = $x_start + ($x_end-$x_start)*($graph_x[$i]-$min_x)/($max_x-$min_x);

   $pt_y = $y_end - ($y_end - $y_start)*($graph_y[$i]-$min_y)/($max_y-$min_y);



 //  imagesetpixel( $image, $pt_x, $pt_y, $black );

   imagechar($image, 2, $pt_x - 3, $pt_y - 10, '.', $black);

   }



$string = sprintf("%2.5f", $max_y);

imagestring($image, 4, $x_start - strlen($string) * $char_width, $y_start - $char_width, $string, $black);



$string = sprintf("%2.5f", $min_y);

imagestring($image, 4, $x_start - strlen($string) * $char_width, $y_end - $char_height, $string, $black);



$string = sprintf("%2.5f", $min_x);

imagestring($image, 4, $x_start - (strlen($string) * $char_width)/2, $y_end, $string, $black);

    

$string = sprintf("%2.5f", $max_x);

imagestring($image, 4, $x_end - (strlen($string) * $char_width) / 2, $y_end, $string, $black);



$x_title = 'x axis';

$y_title = 'y axis';



imagestring($image, 4, $x_start + ($x_end - $x_start) / 2 - strlen($x_title) * $char_width / 2, $y_end, $x_title, $black);



imagestring($image, 4, $char_width, ($y_end - $y_start) / 2, $y_title, $black);



header('Content-type: image/png');

$filename = sprintf("%d.png", time());

ImagePNG($image,$filename);

ImageDestroy($image);



printf("<img src='%s'> ", $filename);

?> 



</body>

</html>

DHKold
15-Jun-2005 02:52


to create an image from a BMP file, I made this function, that return a resource like the others ImageCreateFrom function:



<?php

/*********************************************/

/* Fonction: ImageCreateFromBMP              */

/* Author:   DHKold                          */

/* Contact:  admin@dhkold.com                */

/* Date:     The 15th of June 2005           */

/* Version:  2.0B                            */

/*********************************************/



function ImageCreateFromBMP($filename)

{

 //Ouverture du fichier en mode binaire

   if (! $f1 = fopen($filename,"rb")) return FALSE;



 //1 : Chargement des ent

imagecreate

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