pdo文字水印类，验证码类，缩略图类，logo类

Posted on 2015-06-26 23:03  小蕊同学  阅读(285)  评论(0)  编辑  收藏  举报
文字水印类
image.class.php
  1. <?php
  2. /**
  3.  * webrx.cn  qq:7031633
  4. * @author webrx
  5. * @copyright  copyright (c) 2003-2014   webrx Inc. (http://www.webrx.cn)
  6. * @version    2014-9-7   webrx@126.com
  7. */
  8. class Image {
  9.     private $f;
  10.     private $i;
  11.     private $path;
  12.     public function __construct($i = '') {
  13.         $this->f = dirname ( __FILE__ ) . '/f.ttf';
  14.         if (empty ( $i )) {
  15.         } else {
  16.             $this->i = imagecreatefromjpeg ( $i );
  17.             $this->path = $i;
  18.         }
  19.     }
  20.     public function check($len = 4) {
  21.         session_start ();
  22.         header ( 'content-type:image/png' );
  23.         $fs = [
  24.             '/a.ttf',
  25.             '/b.ttf',
  26.             '/f.ttf'
  27.         ];
  28.         $font = dirname ( __FILE__ ) . $fs [mt_rand ( 0, 1 )];
  29.         $w = 35 * $len;
  30.         $h = 50;
  31.         $this->i = imagecreatetruecolor ( $w, $h );
  32.         $c = imagecolorallocatealpha ( $this->i, 0, 0, 0, 127 );
  33.         // imagecolortransparent($i,$c);
  34.         // imagefill($i,0,0,$c);
  35.         imagefilledrectangle ( $this->i, 0, 0, $w, $h, $this->gc ( $this->i, 'ffffff', mt_rand ( 0, 2 ) ) );
  36.         $sss = '';
  37.         for($j = 0; $j < $len; $j ++) {
  38.             $st = $this->gs ( 1 );
  39.             $sss .= $st;
  40.             imagettftext ( $this->i, mt_rand ( 15, 25 ), mt_rand ( - 30, 30 ), $j * 35 + 10, mt_rand ( 28, 38 ), $this->gc ( $this->i ), $font, $st );
  41.         }
  42.         $_SESSION ['code'] = $sss;
  43.         imagesetthickness ( $this->i, mt_rand ( 2, 8 ) );
  44.         for($j = 0; $j < mt_rand ( 5, 10 ); $j ++) {
  45.             imagefilledarc ( $this->i, mt_rand ( 0, $w ), mt_rand ( 0, $h ), mt_rand ( 0, $w ), mt_rand ( 0, $h ), mt_rand ( 0, 360 ), mt_rand ( 0, 360 ), $this->gc ( $this->i, 'rand', mt_rand ( 100, 120 ) ), IMG_ARC_NOFILL );
  46.         }
  47.         for($j = 0; $j < 10; $j ++) {
  48.             imagettftext ( $this->i, mt_rand ( 10, 15 ), mt_rand ( - 5, 5 ), mt_rand ( 0, $w ), mt_rand ( 0, $h ), $this->gc ( $this->i, 'rand', mt_rand ( 100, 120 ) ), $font, $this->gs ( 1 ) );
  49.         }
  50.         imagepng ( $this->i );
  51.     }
  52.     public function gs($n = 4) {
  53.         $s = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
  54.         $t = '';
  55.         for($i = 0; $i < $n; $i ++) {
  56.             $t .= substr ( $s, mt_rand ( 0, strlen ( $s ) - 1 ), 1 );
  57.         }
  58.         return $t;
  59.     }
  60.     public function setImg($i) {
  61.         $this->i = imagecreatefromjpeg ( $i );
  62.         $this->path = $i;
  63.     }
  64.     public function text($s = 30, $t = '版权所有', $c = 'rand', $a = 0, $p = 5, $f = true, $fn = 't_') {
  65.         $ii = getimagesize ( $this->path );
  66.         if ($ii [2] == 2) {
  67.             if ($ii [0] > 300) {
  68.                 $pos = imagettfbbox ( $s, 0, $this->f, $t );
  69.                 $pad = 30;
  70.                 switch ($p) {
  71.                     case 1 : // 左上角
  72.                         $x = 0 - $pos [0] + $pad;
  73.                         $y = 0 - $pos [7] + $pad;
  74.                         break;
  75.                     case 2 : // 上边 水平中央
  76.                         $x = ($ii [0] - $pos [2]) / 2;
  77.                         $y = 0 - $pos [7] + $pad;
  78.                         break;
  79.                     case 3 :
  80.                         $x = $ii [0] - $pos [2] - $pad;
  81.                         $y = 0 - $pos [7] + $pad;
  82.                         break;
  83.                     case 4 :
  84.                         $x = 0 - $pos [0] + $pad;
  85.                         $y = ($ii [1] - $pos [6]) / 2;
  86.                         break;
  87.                     case 5 :
  88.                         $x = ($ii [0] - $pos [2]) / 2;
  89.                         $y = ($ii [1] - $pos [6]) / 2;
  90.                         break;
  91.                     case 6 :
  92.                         $x = $ii [0] - $pos [2] - $pad;
  93.                         $y = ($ii [1] - $pos [6]) / 2;
  94.                         break;
  95.                         	
  96.                     case 7 :
  97.                         $x = 0 - $pos [0] + $pad;
  98.                         $y = $ii [1] - $pos [6] - $pad;
  99.                         break;
  100.                         	
  101.                     case 8 :
  102.                         $x = ($ii [0] - $pos [2]) / 2;
  103.                         $y = $ii [1] - $pos [6] - $pad;
  104.                         break;
  105.                         	
  106.                     case 9 :
  107.                         $x = $ii [0] - $pos [2] - $pad;
  108.                         $y = $ii [1] - $pos [6] - $pad;
  109.                         break;
  110.                 }
  111.                 imagettftext ( $this->i, $s, 0, $x, $y, $this->gc ( $this->i, $c, $a ), $this->f, $t );
  113.                 if ($f) {
  114.                     imagejpeg ( $this->i, $this->path );
  115.                 } else {
  116.                     $path = dirname ( $this->path ) . '/';
  117.                     $name = $fn . substr ( $this->path, strrpos ( $this->path, '/' ) + 1 );
  118.                     imagejpeg ( $this->i, $path . $name );
  119.                 }
  120.             }
  121.         }
  122.     }
  123.     public function logo($p = 5, $f = true, $fn = 'logo_') {
  124.         $ii = getimagesize ( $this->path );
  125.         if ($ii [2] == 2) {
  126.             if ($ii [0] > 300) {
  127.                 $w = $ii [0];
  128.                 $h = $ii [1];
  130.                 // 水银图标 logo.png 格式
  131.                 $logo = dirname ( __FILE__ ) . '/logo.png';
  132.                 $li = imagecreatefrompng ( $logo );
  133.                 $liw = imagesx ( $li );
  134.                 $lih = imagesy ( $li );
  136.                 $x = ($w - $liw) / 2;
  137.                 $y = ($h - $lih) / 2;
  139.                 $pad = 35;
  140.                 switch ($p) {
  141.                     case 1 :
  142.                         $x = 0 + $pad;
  143.                         $y = 0 + $pad;
  144.                         break;
  145.                         	
  146.                     case 2 :
  147.                         $y = 0 + $pad;
  148.                         break;
  149.                         	
  150.                     case 3 :
  151.                         $x = $w - $liw - $pad;
  152.                         $y = 0 + $pad;
  153.                         break;
  154.                         	
  155.                     case 4 :
  156.                         $x = 0 + $pad;
  157.                         break;
  158.                         	
  159.                     case 6 :
  160.                         $x = $w - $liw - $pad;
  161.                         break;
  162.                         	
  163.                     case 7 :
  164.                         $x = 0 + $pad;
  165.                         $y = $h - $lih - $pad;
  166.                         break;
  167.                         	
  168.                     case 8 :
  169.                         $y = $h - $lih - $pad;
  170.                         break;
  171.                         	
  172.                     case 9 :
  173.                         $x = $w - $liw - $pad;
  174.                         $y = $h - $lih - $pad;
  175.                         break;
  176.                 }
  177.                 imagecopy ( $this->i, $li, $x, $y, 0, 0, $liw, $lih );
  178.                 if ($f) {
  179.                     imagejpeg ( $this->i, $this->path );
  180.                 } else {
  181.                     $path = dirname ( $this->path ) . '/';
  182.                     $name = $fn . substr ( $this->path, strrpos ( $this->path, '/' ) + 1 );
  183.                     imagejpeg ( $this->i, $path . $name );
  184.                 }
  185.                 imagedestroy ( $li );
  186.             }
  187.         }
  188.     }
  189.     public function thumb($f = false, $w = 220, $h = 0, $fn = 's_') {
  190.         $ii = getimagesize ( $this->path );
  191.         if ($ii [2] == 2) {
  192.             if ($ii [0] > $w) {
  193.                 $sw = $ii [0];
  194.                 $sh = $ii [1];
  195.                 $h = $h == 0 ? $w / $sw * $sh : $h;
  196.                 $dst = imagecreatetruecolor ( $w, $h );
  197.                 imagecopyresampled ( $dst, $this->i, 0, 0, 0, 0, $w, $h, $sw, $sh );
  198.                 if ($f) {
  199.                     imagejpeg ( $dst, $this->path );
  200.                 } else {
  201.                     $path = dirname ( $this->path ) . '/';
  202.                     $name = $fn . substr ( $this->path, strrpos ( $this->path, '/' ) + 1 );
  203.                     imagejpeg ( $dst, $path . $name );
  204.                 }
  205.                 imagedestroy ( $dst );
  206.             }
  207.         }
  208.     }
  209.     public function gc($i, $c = 'rand', $a = 0) {
  210.         $color = '';
  211.         switch ($c) {
  212.             case 'white' :
  213.                 $color = imagecolorallocatealpha ( $i, 255, 255, 255, $a );
  214.                 break;
  215.             case 'black' :
  216.                 $color = imagecolorallocatealpha ( $i, 0, 0, 0, $a );
  217.                 break;
  218.             case 'red' :
  219.                 $color = imagecolorallocatealpha ( $i, 255, 0, 0, $a );
  220.                 break;
  221.             case 'green' :
  222.                 $color = imagecolorallocatealpha ( $i, 0, 255, 0, $a );
  223.                 break;
  224.             case 'rand' :
  225.                 $color = imagecolorallocatealpha ( $i, mt_rand ( 0, 255 ), mt_rand ( 0, 255 ), mt_rand ( 0, 255 ), $a );
  226.                 break;
  227.             default :
  228.                 $cc = str_split ( $c, 2 );
  229.                 $color = imagecolorallocatealpha ( $i, hexdec ( $cc [0] ), hexdec ( $cc [1] ), hexdec ( $cc [2] ), $a );
  230.                 break;
  231.         }
  232.         return $color;
  233.     }
  234.     public function __destruct() {
  235.         if (isset ( $this->i )) {
  236.             imagedestroy ( $this->i );
  237.         }
  238.     }
  239. }
类的调用及使用
  1. <?php 
  2.  include 'inc/Image.class.php';
  3.  $i=new Image('c:/a.jpg');
  4.  $i->text();
  5.  
  6.
给多张图片添加水印文字
  1. <?php 
  2.  include 'inc/Image.class.php';
  3.  $i=new Image('c:/a.jpg');
  4.  $i->text();
  5.  
  6.  $i->setImg('c:/b.jpg');
  7.  $i->text(50);
  8.  
  9.  $i->setImg('c:/c.jpg');
  10.  $i->text(100);
  11.
验证码的调用
  1. <?php 
  2.  include 'inc/Image.class.php';
  3.  $i=new Image();
  4. $i->check(4);
  5.  
  6.
缩略图类的调用，如果写200,100表示固定宽高，只写200，高度自适应，
  1. <?php 
  2.  include 'inc/Image.class.php';
  3.  $i=new Image();
  4. $i->setImg('c:/d.jpg');
  5. $i->thumb(false,200);
logo 图片放在图上的调用
  1. <?php 
  2.  include 'inc/Image.class.php';
  3.  $i=new Image();
  4. $i->setImg('c:/d.jpg');
  5. $i->logo();
  6.  
  7.  

  1. <?php 
  2.  include 'inc/Image.class.php';
  3.  $i=new Image();
  4. $i->setImg('c:/d.jpg');
  5. $i->logo(5,false);  //5 表示位置，false表示新建一张图片





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