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Metadata_PHP/metadata/include/captcha.php

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PHP
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This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<?php
@session_start();
//if(isset($_SESSION['REMOTE_ADDR']) && $_SESSION['REMOTE_ADDR'] != $_SERVER['REMOTE_ADDR']) unset($_SESSION["USER_ID"]); //Делаемся не авторизованным если зашли с другого ip адреса
if (isset($_REQUEST['id'])) $id = $_REQUEST['id']; else $id = '';
$width = 115; //Ширина изображения
$height = 40; //Высота изображения
$font_size = 14; //Размер шрифта
$let_amount = 5; //Количество символов, которые нужно набрать
$fon_let_amount = 40; //Количество символов, которые находятся на фоне
$path_fonts = getcwd().'/fonts/'; //Путь к шрифтам
//$letters = array('a','b','c','d','e','f','g','h','j','k','m','n','p','q','r','s','t','u','v','w','x','y','z','2','3','4','5','6','7','9');
$letters = array('0','1','2','3','4','5','6','7','8','9');
$colors = array('100','200','150','170','190','210','190','160','170','190','210');
$src = imagecreatetruecolor($width,$height);
$fon = imagecolorallocate($src,58,58,58);
imagefill($src,0,0,$fon);
$fonts = array();
$dir=opendir($path_fonts);
while($fontName = readdir($dir))
{
if($fontName != "." && $fontName != ".." && pathinfo($fontName, PATHINFO_EXTENSION)=='ttf')
{
$fonts[] = $fontName;
}
}
closedir($dir);
for($i=0;$i<$fon_let_amount;$i++)
{
$color = imagecolorallocatealpha($src,rand(0,255),rand(0,255),rand(0,255),100);
$font = $path_fonts.$fonts[rand(0,sizeof($fonts)-1)];
$letter = $letters[rand(0,sizeof($letters)-1)];
$size = rand($font_size-2,$font_size+2);
imagettftext($src,$size,rand(0,45),rand($width*0.1,$width-$width*0.1),rand($height*0.2,$height),$color,$font,$letter);
}
for($i=0;$i<$let_amount;$i++)
{
$color = imagecolorallocatealpha($src,$colors[rand(0,sizeof($colors)-1)],$colors[rand(0,sizeof($colors)-1)],$colors[rand(0,sizeof($colors)-1)],rand(20,40));
$font = $path_fonts.$fonts[rand(0,sizeof($fonts)-1)];
$letter = $letters[rand(0,sizeof($letters)-1)];
$size = rand($font_size*2.1-2,$font_size*2.1+2);
$x = ($i+0.9)*$font_size + rand(4,7);
$y = (($height*2.3)/3) + rand(0,5);
$cod[] = $letter;
imagettftext($src,$size,rand(0,15),$x,$y,$color,$font,$letter);
}
$_SESSION['secpic'.$id] = implode('',$cod);
header ("Content-type: image/gif");
imagegif($src);
?>