1<?php 2 3/* 4 A very primitive captcha implementation 5*/ 6 7/* Create Imagick object */ 8$Imagick = new Imagick(); 9 10/* Create the ImagickPixel object (used to set the background color on image) */ 11$bg = new ImagickPixel(); 12 13/* Set the pixel color to white */ 14$bg->setColor( 'white' ); 15 16/* Create a drawing object and set the font size */ 17$ImagickDraw = new ImagickDraw(); 18 19/* Set font and font size. You can also specify /path/to/font.ttf */ 20$ImagickDraw->setFont( 'Helvetica Regular' ); 21$ImagickDraw->setFontSize( 20 ); 22 23/* Create the text */ 24$alphanum = 'ABXZRMHTL23456789'; 25$string = substr( str_shuffle( $alphanum ), 2, 6 ); 26 27/* Create new empty image */ 28$Imagick->newImage( 85, 30, $bg ); 29 30/* Write the text on the image */ 31$Imagick->annotateImage( $ImagickDraw, 4, 20, 0, $string ); 32 33/* Add some swirl */ 34$Imagick->swirlImage( 20 ); 35 36/* Create a few random lines */ 37$ImagickDraw->line( rand( 0, 70 ), rand( 0, 30 ), rand( 0, 70 ), rand( 0, 30 ) ); 38$ImagickDraw->line( rand( 0, 70 ), rand( 0, 30 ), rand( 0, 70 ), rand( 0, 30 ) ); 39$ImagickDraw->line( rand( 0, 70 ), rand( 0, 30 ), rand( 0, 70 ), rand( 0, 30 ) ); 40$ImagickDraw->line( rand( 0, 70 ), rand( 0, 30 ), rand( 0, 70 ), rand( 0, 30 ) ); 41$ImagickDraw->line( rand( 0, 70 ), rand( 0, 30 ), rand( 0, 70 ), rand( 0, 30 ) ); 42 43/* Draw the ImagickDraw object contents to the image. */ 44$Imagick->drawImage( $ImagickDraw ); 45 46/* Give the image a format */ 47$Imagick->setImageFormat( 'png' ); 48 49/* Send headers and output the image */ 50header( "Content-Type: image/{$Imagick->getImageFormat()}" ); 51echo $Imagick->getImageBlob( ); 52 53?>
