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Code :
- <?php
- /**
- * Project: Securimage: A PHP class for creating and managing form CAPTCHA images<br />
- * File: securimage.php<br />
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or any later version.<br /><br />
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.<br /><br />
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA<br /><br />
- *
- * Any modifications to the library should be indicated clearly in the source code
- * to inform users that the changes are not a part of the original software.<br /><br />
- *
- * If you found this script useful, please take a quick moment to rate it.<br />
- * http://www.hotscripts.com/rate/49400.html Thanks.
- *
- * @link http://www.phpcaptcha.org Securimage PHP CAPTCHA
- * @link http://www.phpcaptcha.org/latest.zip Download Latest Version
- * @link http://www.phpcaptcha.org/Securimage_Docs/ Online Documentation
- * @copyright 2007 Drew Phillips
- * @author drew010 <drew@drew-phillips.com>
- * @version 1.0.3.1 (March 24, 2008)
- * @package Securimage
- *
- */
- /**
- ChangeLog
-
- 1.0.3.1
- - Error reading from wordlist in some cases caused words to be cut off 1 letter short
-
- 1.0.3
- - Removed shadow_text from code which could cause an undefined property error due to removal from previous version
-
- 1.0.2
- - Audible CAPTCHA Code wav files
- - Create codes from a word list instead of random strings
-
- 1.0
- - Added the ability to use a selected character set, rather than a-z0-9 only.
- - Added the multi-color text option to use different colors for each letter.
- - Switched to automatic session handling instead of using files for code storage
- - Added GD Font support if ttf support is not available. Can use internal GD fonts or load new ones.
- - Added the ability to set line thickness
- - Added option for drawing arced lines over letters
- - Added ability to choose image type for output
-
- */
- /**
- * Output images in JPEG format
- */
- define('SI_IMAGE_JPEG', 1);
- /**
- * Output images in PNG format
- */
- define('SI_IMAGE_PNG', 2);
- /**
- * Output images in GIF format
- * Must have GD >= 2.0.28!
- */
- define('SI_IMAGE_GIF', 3);
- /**
- * Securimage CAPTCHA Class.
- *
- * @package Securimage
- * @subpackage classes
- *
- */
- class Securimage {
- /**
- * The desired width of the CAPTCHA image.
- *
- * @var int
- */
- var $image_width = 175;
- /**
- * The desired width of the CAPTCHA image.
- *
- * @var int
- */
- var $image_height = 45;
- /**
- * The image format for output.<br />
- * Valid options: SI_IMAGE_PNG, SI_IMAGE_JPG, SI_IMAGE_GIF
- *
- * @var int
- */
- var $image_type = SI_IMAGE_PNG;
- /**
- * The length of the code to generate.
- *
- * @var int
- */
- var $code_length = 4;
- /**
- * The character set for individual characters in the image.<br />
- * Letters are converted to uppercase.<br />
- * The font must support the letters or there may be problematic substitutions.
- *
- * @var string
- */
- var $charset = 'ABCDEFGHKLMNPRSTUVWYZ23456789';
- //var $charset = '0123456789';
- /**
- * Create codes using this word list
- *
- * @var string The path to the word list to use for creating CAPTCHA codes
- */
- var $wordlist_file = '../words/words.txt';
- /**
- * True to use a word list file instead of a random code
- *
- * @var bool
- */
- var $use_wordlist = true;
- /**
- * Whether to use a GD font instead of a TTF font.<br />
- * TTF offers more support and options, but use this if your PHP doesn't support TTF.<br />
- *
- * @var boolean
- */
- var $use_gd_font = false;
- /**
- * The GD font to use.<br />
- * Internal gd fonts can be loaded by their number.<br />
- * Alternatively, a file path can be given and the font will be loaded from file.
- *
- * @var mixed
- */
- var $gd_font_file = 'gdfonts/bubblebath.gdf';
- /**
- * The approximate size of the font in pixels.<br />
- * This does not control the size of the font because that is determined by the GD font itself.<br />
- * This is used to aid the calculations of positioning used by this class.<br />
- *
- * @var int
- */
- var $gd_font_size = 20;
- // Note: These font options below do not apply if you set $use_gd_font to true with the exception of $text_color
- /**
- * The path to the TTF font file to load.
- *
- * @var string
- */
- var $ttf_file = "./elephant.ttf";
- /**
- * The font size.<br />
- * Depending on your version of GD, this should be specified as the pixel size (GD1) or point size (GD2)<br />
- *
- * @var int
- */
- var $font_size = 24;
- /**
- * The minimum angle in degrees, with 0 degrees being left-to-right reading text.<br />
- * Higher values represent a counter-clockwise rotation.<br />
- * For example, a value of 90 would result in bottom-to-top reading text.
- *
- * @var int
- */
- var $text_angle_minimum = -20;
- /**
- * The minimum angle in degrees, with 0 degrees being left-to-right reading text.<br />
- * Higher values represent a counter-clockwise rotation.<br />
- * For example, a value of 90 would result in bottom-to-top reading text.
- *
- * @var int
- */
- var $text_angle_maximum = 20;
- /**
- * The X-Position on the image where letter drawing will begin.<br />
- * This value is in pixels from the left side of the image.
- *
- * @var int
- */
- var $text_x_start = 8;
- /**
- * Letters can be spaced apart at random distances.<br />
- * This is the minimum distance between two letters.<br />
- * This should be <i>at least</i> as wide as a font character.<br />
- * Small values can cause letters to be drawn over eachother.<br />
- *
- * @var int
- */
- var $text_minimum_distance = 30;
- /**
- * Letters can be spaced apart at random distances.<br />
- * This is the maximum distance between two letters.<br />
- * This should be <i>at least</i> as wide as a font character.<br />
- * Small values can cause letters to be drawn over eachother.<br />
- *
- * @var int
- */
- var $text_maximum_distance = 33;
- /**
- * The background color for the image.<br />
- * This should be specified in HTML hex format.<br />
- * Make sure to include the preceding # sign!
- *
- * @var string
- */
- var $image_bg_color = "#e3daed";
- /**
- * The text color to use for drawing characters.<br />
- * This value is ignored if $use_multi_text is set to true.<br />
- * Make sure this contrasts well with the background color.<br />
- * Specify the color in HTML hex format with preceding # sign
- *
- * @see Securimage::$use_multi_text
- * @var string
- */
- var $text_color = "#ff0000";
- /**
- * Set to true to use multiple colors for each character.
- *
- * @see Securimage::$multi_text_color
- * @var boolean
- */
- var $use_multi_text = true;
- /**
- * String of HTML hex colors to use.<br />
- * Separate each possible color with commas.<br />
- * Be sure to precede each value with the # sign.
- *
- * @var string
- */
- var $multi_text_color = "#0a68dd,#f65c47,#8d32fd";
- /**
- * Set to true to make the characters appear transparent.
- *
- * @see Securimage::$text_transparency_percentage
- * @var boolean
- */
- var $use_transparent_text = true;
- /**
- * The percentage of transparency, 0 to 100.<br />
- * A value of 0 is completely opaque, 100 is completely transparent (invisble)
- *
- * @see Securimage::$use_transparent_text
- * @var int
- */
- var $text_transparency_percentage = 15;
- // Line options
- /**
- * Draw vertical and horizontal lines on the image.
- *
- * @see Securimage::$line_color
- * @see Securimage::$line_distance
- * @see Securimage::$line_thickness
- * @see Securimage::$draw_lines_over_text
- * @var boolean
- */
- var $draw_lines = true;
- /**
- * The color of the lines drawn on the image.<br />
- * Use HTML hex format with preceding # sign.
- *
- * @see Securimage::$draw_lines
- * @var string
- */
- var $line_color = "#80BFFF";
- /**
- * How far apart to space the lines from eachother in pixels.
- *
- * @see Securimage::$draw_lines
- * @var int
- */
- var $line_distance = 5;
- /**
- * How thick to draw the lines in pixels.<br />
- * 1-3 is ideal depending on distance
- *
- * @see Securimage::$draw_lines
- * @see Securimage::$line_distance
- * @var int
- */
- var $line_thickness = 1;
- /**
- * Set to true to draw angled lines on the image in addition to the horizontal and vertical lines.
- *
- * @see Securimage::$draw_lines
- * @var boolean
- */
- var $draw_angled_lines = false;
- /**
- * Draw the lines over the text.<br />
- * If fales lines will be drawn before putting the text on the image.<br />
- * This can make the image hard for humans to read depending on the line thickness and distance.
- *
- * @var boolean
- */
- var $draw_lines_over_text = false;
- /**
- * For added security, it is a good idea to draw arced lines over the letters to make it harder for bots to segment the letters.<br />
- * Two arced lines will be drawn over the text on each side of the image.<br />
- * This is currently expirimental and may be off in certain configurations.
- *
- * @var boolean
- */
- var $arc_linethrough = true;
- /**
- * The colors or color of the arced lines.<br />
- * Use HTML hex notation with preceding # sign, and separate each value with a comma.<br />
- * This should be similar to your font color for single color images.
- *
- * @var string
- */
- var $arc_line_colors = "#8080ff";
- /**
- * Full path to the WAV files to use to make the audio files, include trailing /.<br />
- * Name Files [A-Z0-9].wav
- *
- * @since 1.0.1
- * @var string
- */
- var $audio_path = './audio/';
- //END USER CONFIGURATION
- //There should be no need to edit below unless you really know what you are doing.
- /**
- * The gd image resource.
- *
- * @access private
- * @var resource
- */
- var $im;
- /**
- * The background image resource
- *
- * @access private
- * @var resource
- */
- var $bgimg;
- /**
- * The code generated by the script
- *
- * @access private
- * @var string
- */
- var $code;
- /**
- * The code that was entered by the user
- *
- * @access private
- * @var string
- */
- var $code_entered;
- /**
- * Whether or not the correct code was entered
- *
- * @access private
- * @var boolean
- */
- var $correct_code;
- /**
- * Class constructor.<br />
- * Because the class uses sessions, this will attempt to start a session if there is no previous one.<br />
- * If you do not start a session before calling the class, the constructor must be called before any
- * output is sent to the browser.
- *
- * <code>
- * $securimage = new Securimage();
- * </code>
- *
- */
- function Securimage()
- {
- if ( session_id() == '' ) { // no session has been started yet, which is needed for validation
- session_start();
- }
- }
- /**
- * Generate a code and output the image to the browser.
- *
- * <code>
- * <?php
- * include 'securimage.php';
- * $securimage = new Securimage();
- * $securimage->show('bg.jpg');
- * ?>
- * </code>
- *
- * @param string $background_image The path to an image to use as the background for the CAPTCHA
- */
- function show($background_image = "" )
- {
- if($background_image != "" && is_readable($background_image)) {
- $this->bgimg = $background_image;
- }
- $this->doImage();
- }
- /**
- * Validate the code entered by the user.
- *
- * <code>
- * $code = $_POST['code'];
- * if ($securimage->check($code) == false) {
- * die("Sorry, the code entered did not match." );
- * } else {
- * $valid = true;
- * }
- * </code>
- * @param string $code The code the user entered
- * @return boolean true if the code was correct, false if not
- */
- function check($code)
- {
- $this->code_entered = $code;
- $this->validate();
- return $this->correct_code;
- }
- /**
- * Generate and output the image
- *
- * @access private
- *
- */
- function doImage()
- {
- if($this->use_transparent_text == true || $this->bgimg != "" ) {
- $this->im = imagecreatetruecolor($this->image_width, $this->image_height);
- $bgcolor = imagecolorallocate($this->im, hexdec(substr($this->image_bg_color, 1, 2)), hexdec(substr($this->image_bg_color, 3, 2)), hexdec(substr($this->image_bg_color, 5, 2)));
- imagefilledrectangle($this->im, 0, 0, imagesx($this->im), imagesy($this->im), $bgcolor);
- } else { //no transparency
- $this->im = imagecreate($this->image_width, $this->image_height);
- $bgcolor = imagecolorallocate($this->im, hexdec(substr($this->image_bg_color, 1, 2)), hexdec(substr($this->image_bg_color, 3, 2)), hexdec(substr($this->image_bg_color, 5, 2)));
- }
- if($this->bgimg != "" ) { $this->setBackground(); }
- $this->createCode();
- if (!$this->draw_lines_over_text && $this->draw_lines) $this->drawLines();
- $this->drawWord();
- if ($this->arc_linethrough == true) $this->arcLines();
- if ($this->draw_lines_over_text && $this->draw_lines) $this->drawLines();
- $this->output();
- }
- /**
- * Set the background of the CAPTCHA image
- *
- * @access private
- *
- */
- function setBackground()
- {
- $dat = @getimagesize($this->bgimg);
- if($dat == false) { return; }
- switch($dat[2]) {
- case 1: $newim = @imagecreatefromgif($this->bgimg); break;
- case 2: $newim = @imagecreatefromjpeg($this->bgimg); break;
- case 3: $newim = @imagecreatefrompng($this->bgimg); break;
- case 15: $newim = @imagecreatefromwbmp($this->bgimg); break;
- case 16: $newim = @imagecreatefromxbm($this->bgimg); break;
- default: return;
- }
- if(!$newim) return;
- imagecopy($this->im, $newim, 0, 0, 0, 0, $this->image_width, $this->image_height);
- }
- /**
- * Draw arced lines over the text
- *
- * @access private
- *
- */
- function arcLines()
- {
- $colors = explode(',', $this->arc_line_colors);
- imagesetthickness($this->im, 3);
- $color = $colors[rand(0, sizeof($colors) - 1)];
- $linecolor = imagecolorallocate($this->im, hexdec(substr($color, 1, 2)), hexdec(substr($color, 3, 2)), hexdec(substr($color, 5, 2)));
- $xpos = $this->text_x_start + ($this->font_size * 2) + rand(-5, 5);
- $width = $this->image_width / 2.66 + rand(3, 10);
- $height = $this->font_size * 2.14 - rand(3, 10);
- if ( rand(0,100) % 2 == 0 ) {
- $start = rand(0,66);
- $ypos = $this->image_height / 2 - rand(5, 15);
- $xpos += rand(5, 15);
- } else {
- $start = rand(180, 246);
- $ypos = $this->image_height / 2 + rand(5, 15);
- }
- $end = $start + rand(75, 110);
- imagearc($this->im, $xpos, $ypos, $width, $height, $start, $end, $linecolor);
- $color = $colors[rand(0, sizeof($colors) - 1)];
- $linecolor = imagecolorallocate($this->im, hexdec(substr($color, 1, 2)), hexdec(substr($color, 3, 2)), hexdec(substr($color, 5, 2)));
- if ( rand(1,75) % 2 == 0 ) {
- $start = rand(45, 111);
- $ypos = $this->image_height / 2 - rand(5, 15);
- $xpos += rand(5, 15);
- } else {
- $start = rand(200, 250);
- $ypos = $this->image_height / 2 + rand(5, 15);
- }
- $end = $start + rand(75, 100);
- imagearc($this->im, $this->image_width * .75, $ypos, $width, $height, $start, $end, $linecolor);
- }
- /**
- * Draw lines on the image
- *
- * @access private
- *
- */
- function drawLines()
- {
- $linecolor = imagecolorallocate($this->im, hexdec(substr($this->line_color, 1, 2)), hexdec(substr($this->line_color, 3, 2)), hexdec(substr($this->line_color, 5, 2)));
- imagesetthickness($this->im, $this->line_thickness);
- //vertical lines
- for($x = 1; $x < $this->image_width; $x += $this->line_distance) {
- imageline($this->im, $x, 0, $x, $this->image_height, $linecolor);
- }
- //horizontal lines
- for($y = 11; $y < $this->image_height; $y += $this->line_distance) {
- imageline($this->im, 0, $y, $this->image_width, $y, $linecolor);
- }
- if ($this->draw_angled_lines == true) {
- for ($x = -($this->image_height); $x < $this->image_width; $x += $this->line_distance) {
- imageline($this->im, $x, 0, $x + $this->image_height, $this->image_height, $linecolor);
- }
- for ($x = $this->image_width + $this->image_height; $x > 0; $x -= $this->line_distance) {
- imageline($this->im, $x, 0, $x - $this->image_height, $this->image_height, $linecolor);
- }
- }
- }
- /**
- * Draw the CAPTCHA code over the image
- *
- * @access private
- *
- */
- function drawWord()
- {
- if ($this->use_gd_font == true) {
- if (!is_int($this->gd_font_file)) { //is a file name
- $font = @imageloadfont($this->gd_font_file);
- if ($font == false) {
- trigger_error("Failed to load GD Font file {$this->gd_font_file} ", E_USER_WARNING);
- return;
- }
- } else { //gd font identifier
- $font = $this->gd_font_file;
- }
- $color = imagecolorallocate($this->im, hexdec(substr($this->text_color, 1, 2)), hexdec(substr($this->text_color, 3, 2)), hexdec(substr($this->text_color, 5, 2)));
- imagestring($this->im, $font, $this->text_x_start, ($this->image_height / 2) - ($this->gd_font_size / 2), $this->code, $color);
- } else { //ttf font
- if($this->use_transparent_text == true) {
- $alpha = intval($this->text_transparency_percentage / 100 * 127);
- $font_color = imagecolorallocatealpha($this->im, hexdec(substr($this->text_color, 1, 2)), hexdec(substr($this->text_color, 3, 2)), hexdec(substr($this->text_color, 5, 2)), $alpha);
- } else { //no transparency
- $font_color = imagecolorallocate($this->im, hexdec(substr($this->text_color, 1, 2)), hexdec(substr($this->text_color, 3, 2)), hexdec(substr($this->text_color, 5, 2)));
- }
- $x = $this->text_x_start;
- $strlen = strlen($this->code);
- $y_min = ($this->image_height / 2) + ($this->font_size / 2) - 2;
- $y_max = ($this->image_height / 2) + ($this->font_size / 2) + 2;
- $colors = explode(',', $this->multi_text_color);
- for($i = 0; $i < $strlen; ++$i) {
- $angle = rand($this->text_angle_minimum, $this->text_angle_maximum);
- $y = rand($y_min, $y_max);
- if ($this->use_multi_text == true) {
- $idx = rand(0, sizeof($colors) - 1);
- $r = substr($colors[$idx], 1, 2);
- $g = substr($colors[$idx], 3, 2);
- $b = substr($colors[$idx], 5, 2);
- if($this->use_transparent_text == true) {
- $font_color = imagecolorallocatealpha($this->im, "0x$r", "0x$g", "0x$b", $alpha);
- } else {
- $font_color = imagecolorallocate($this->im, "0x$r", "0x$g", "0x$b" );
- }
- }
- @imagettftext($this->im, $this->font_size, $angle, $x, $y, $font_color, $this->ttf_file, $this->code{$i});
- $x += rand($this->text_minimum_distance, $this->text_maximum_distance);
- } //for loop
- } //else ttf font
- } //function
- /**
- * Create a code and save to the session
- *
- * @since 1.0.1
- *
- */
- function createCode()
- {
- $this->code = false;
- if ($this->use_wordlist && is_readable($this->wordlist_file)) {
- $this->code = $this->readCodeFromFile();
- }
- if ($this->code == false) {
- $this->code = $this->generateCode($this->code_length);
- }
- $this->saveData();
- }
- /**
- * Generate a code
- *
- * @access private
- * @param int $len The code length
- * @return string
- */
- function generateCode($len)
- {
- $code = '';
- for($i = 1, $cslen = strlen($this->charset); $i <= $len; ++$i) {
- $code .= strtoupper( $this->charset{rand(0, $cslen - 1)} );
- }
- return $code;
- }
- /**
- * Reads a word list file to get a code
- *
- * @access private
- * @since 1.0.2
- * @return mixed false on failure, a word on success
- */
- function readCodeFromFile()
- {
- $fp = @fopen($this->wordlist_file, 'rb');
- if (!$fp) return false;
- $fsize = filesize($this->wordlist_file);
- if ($fsize < 32) return false; // too small of a list to be effective
- if ($fsize < 128) {
- $max = $fsize; // still pretty small but changes the range of seeking
- } else {
- $max = 128;
- }
- fseek($fp, rand(0, $fsize - $max), SEEK_SET);
- $data = fread($fp, 128); // read a random 128 bytes from file
- fclose($fp);
- $data = preg_replace("/\r?\n/", "\n", $data);
- $start = strpos($data, "\n", rand(0, 100)) + 1; // random start position
- $end = strpos($data, "\n", $start); // find end of word
- return strtolower(substr($data, $start, $end - $start)); // return substring in 128 bytes
- }
- /**
- * Output image to the browser
- *
- * @access private
- *
- */
- function output()
- {
- header("Expires: Sun, 1 Jan 2000 12:00:00 GMT" );
- header("Last-Modified: " . gmdate("D, d M Y H:i:s" ) . "GMT" );
- header("Cache-Control: no-store, no-cache, must-revalidate" );
- header("Cache-Control: post-check=0, pre-check=0", false);
- header("Pragma: no-cache" );
- switch($this->image_type)
- {
- case SI_IMAGE_JPEG:
- header("Content-Type: image/jpeg" );
- imagejpeg($this->im, null, 90);
- break;
- case SI_IMAGE_GIF:
- header("Content-Type: image/gif" );
- imagegif($this->im);
- break;
- default:
- header("Content-Type: image/png" );
- imagepng($this->im);
- break;
- }
- imagedestroy($this->im);
- }
- /**
- * Get WAV file data of the spoken code.<br />
- * This is appropriate for output to the browser as audio/x-wav
- *
- * @since 1.0.1
- * @return string WAV data
- *
- */
- function getAudibleCode()
- {
- $letters = array();
- $code = $this->getCode();
- if ($code == '') {
- $this->createCode();
- $code = $this->getCode();
- }
- for($i = 0; $i < strlen($code); ++$i) {
- $letters[] = $code{$i};
- }
- return $this->generateWAV($letters);
- }
- /**
- * Save the code in the session
- *
- * @access private
- *
- */
- function saveData()
- {
- $_SESSION['securimage_code_value'] = strtolower($this->code);
- }
- /**
- * Validate the code to the user code
- *
- * @access private
- *
- */
- function validate()
- {
- if ( isset($_SESSION['securimage_code_value']) && !empty($_SESSION['securimage_code_value']) ) {
- if ( $_SESSION['securimage_code_value'] == strtolower(trim($this->code_entered)) ) {
- $this->correct_code = true;
- $_SESSION['securimage_code_value'] = '';
- } else {
- $this->correct_code = false;
- }
- } else {
- $this->correct_code = false;
- }
- }
- /**
- * Get the captcha code
- *
- * @since 1.0.1
- * @return string
- */
- function getCode()
- {
- if (isset($_SESSION['securimage_code_value']) && !empty($_SESSION['securimage_code_value'])) {
- return $_SESSION['securimage_code_value'];
- } else {
- return '';
- }
- }
- /**
- * Check if the user entered code was correct
- *
- * @access private
- * @return boolean
- */
- function checkCode()
- {
- return $this->correct_code;
- }
- /**
- * Generate a wav file by concatenating individual files
- * @since 1.0.1
- * @access private
- * @param array $letters Array of letters to build a file from
- * @return string WAV file data
- */
- function generateWAV($letters)
- {
- $first = true; // use first file to write the header...
- $data_len = 0;
- $files = array();
- $out_data = '';
- foreach ($letters as $letter) {
- $filename = $this->audio_path . strtoupper($letter) . '.wav';
- $fp = fopen($filename, 'rb');
- $file = array();
- $data = fread($fp, filesize($filename)); // read file in
- $header = substr($data, 0, 36);
- $body = substr($data, 44);
- $data = unpack('NChunkID/VChunkSize/NFormat/NSubChunk1ID/VSubChunk1Size/vAudioFormat/vNumChannels/VSampleRate/VByteRate/vBlockAlign/vBitsPerSample', $header);
- $file['sub_chunk1_id'] = $data['SubChunk1ID'];
- $file['bits_per_sample'] = $data['BitsPerSample'];
- $file['channels'] = $data['NumChannels'];
- $file['format'] = $data['AudioFormat'];
- $file['sample_rate'] = $data['SampleRate'];
- $file['size'] = $data['ChunkSize'] + 8;
- $file['data'] = $body;
- if ( ($p = strpos($file['data'], 'LIST')) !== false) {
- // If the LIST data is not at the end of the file, this will probably break your sound file
- $info = substr($file['data'], $p + 4, 8);
- $data = unpack('Vlength/Vjunk', $info);
- $file['data'] = substr($file['data'], 0, $p);
- $file['size'] = $file['size'] - (strlen($file['data']) - $p);
- }
- $files[] = $file;
- $data = null;
- $header = null;
- $body = null;
- $data_len += strlen($file['data']);
- fclose($fp);
- }
- $out_data = '';
- for($i = 0; $i < sizeof($files); ++$i) {
- if ($i == 0) { // output header
- $out_data .= pack('C4VC8', ord('R'), ord('I'), ord('F'), ord('F'), $data_len + 36, ord('W'), ord('A'), ord('V'), ord('E'), ord('f'), ord('m'), ord('t'), ord(' '));
- $out_data .= pack('VvvVVvv',
- 16,
- $files[$i]['format'],
- $files[$i]['channels'],
- $files[$i]['sample_rate'],
- $files[$i]['sample_rate'] * (($files[$i]['bits_per_sample'] * $files[$i]['channels']) / 8),
- ($files[$i]['bits_per_sample'] * $files[$i]['channels']) / 8,
- $files[$i]['bits_per_sample'] );
- $out_data .= pack('C4', ord('d'), ord('a'), ord('t'), ord('a'));
- $out_data .= pack('V', $data_len);
- }
- $out_data .= $files[$i]['data'];
- }
- return $out_data;
- }
- } /* class Securimage */
- ?>
|
Voilà si vous avez une idée, c'est sympa |