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Below, is an image which shows your IP address. Therefore, it must have been generated on-the-fly. Generated images are useful for a number of things, such as creating anti-robot codes for web-forms. The code to do this sort of thing is very simple and self-explanatory. Save the code in a PHP file and then refer to that file in the <img tag of your HTML.

 

 

This example image retrieves your IP address and assigns it to a variable.

 

<?php $ip = $_SERVER['REMOTE_ADDR']; $message="Your IP address is: ".$ip; $this_img = imagecreate(360, 80); $background = imagecolorallocate( $this_img, 0, 0, 255); $text_colour = imagecolorallocate( $this_img, 255, 255, 0); $line_colour = imagecolorallocate( $this_img, 128, 255, 0); imagestring($this_img, 4, 30, 25, $message, $text_colour); imagesetthickness($this_img, 5); imageline($this_img, 30, 45, 300, 45, $line_colour); header("Content-type: image/png"); imagepng($this_img); imagecolordeallocate($line_color); imagecolordeallocate($text_color); imagecolordeallocate($background); imagedestroy($this_img); ?>

 

 

Image generation using a TrueType font

This adds a dash of creativity to your image - using a TrueType font which must be in the same folder as the PHP file you create. This example writes the text twice, once in grey and once in black, with a small off-set, to create a shadow effect.

 

<?php header('Content-Type: image/png'); $im = imagecreatetruecolor(300, 60); $white = imagecolorallocate($im, 255, 255, 255); $grey = imagecolorallocate($im, 128, 128, 128); $black = imagecolorallocate($im, 0, 0, 0); imagefilledrectangle($im, 0, 0, 299, 59, $white); $text = $_SERVER['REMOTE_ADDR']; $font = 'CheriLiney.ttf'; imagettftext($im, 32, 0, 33, 52, $grey, $font, $text); imagettftext($im, 32, 0, 30, 50, $black, $font, $text); imagepng($im); imagedestroy($im); ?>