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php天生gif动画的体例

一佰互联网站开辟设想(www.taishanly.com) 宣布日期 2020-04-27 10:44:59 阅读数: 120

起首须要确认GD库是否是一般,若是是分化图片,请确保把分化的图片放在frames的文件夹外面。GIFEncoder.class.php 类

<?  Class GIFEncoder {     var $GIF = "GIF89a";        /* GIF header 6 bytes    */     var $VER = "GIFEncoder V2.06";    /* Encoder version        */      var $BUF = Array ( );     var $LOP = 0;     var $DIS = 2;     var $COL = -1;     var $IMG = -1;      var $ERR = Array (         "ERR00" =>"Does not supported function for only one image!",         "ERR01" =>"Source is not a GIF image!",         "ERR02" =>"Unintelligible flag ",         "ERR03" =>"Could not make animation from animated GIF source",     );      /*     :::::::::::::::::::::::::::::::::::::::::::::::::::     ::     ::    GIFEncoder...     ::     */     function GIFEncoder    (                             $GIF_src, $GIF_dly, $GIF_lop, $GIF_dis,                             $GIF_red, $GIF_grn, $GIF_blu, $GIF_mod                         ) {         if ( ! is_array ( $GIF_src ) && ! is_array ( $GIF_tim ) ) {             printf    ( "%s: %s", $this->VER, $this->ERR [ "ERR00" ] );             exit    ( 0 );         }         $this->LOP = ( $GIF_lop > -1 ) ? $GIF_lop : 0;         $this->DIS = ( $GIF_dis > -1 ) ? ( ( $GIF_dis < 3 ) ? $GIF_dis : 3 ) : 2;         $this->COL = ( $GIF_red > -1 && $GIF_grn > -1 && $GIF_blu > -1 ) ?                         ( $GIF_red | ( $GIF_grn << 8 ) | ( $GIF_blu << 16 ) ) : -1;          for ( $i = 0; $i < count ( $GIF_src ); $i++ ) {             if ( strToLower ( $GIF_mod ) == "url" ) {                 $this->BUF [ ] = fread ( fopen ( $GIF_src [ $i ], "rb" ), filesize ( $GIF_src [ $i ] ) );             }             else if ( strToLower ( $GIF_mod ) == "bin" ) {                 $this->BUF [ ] = $GIF_src [ $i ];             }             else {                 printf    ( "%s: %s ( %s )!", $this->VER, $this->ERR [ "ERR02" ], $GIF_mod );                 exit    ( 0 );             }             if ( substr ( $this->BUF [ $i ], 0, 6 ) != "GIF87a" && substr ( $this->BUF [ $i ], 0, 6 ) != "GIF89a" ) {                 printf    ( "%s: %d %s", $this->VER, $i, $this->ERR [ "ERR01" ] );                 exit    ( 0 );             }             for ( $j = ( 13 + 3 * ( 2 << ( ord ( $this->BUF [ $i ] { 10 } ) & 0x07 ) ) ), $k = TRUE; $k; $j++ ) {                 switch ( $this->BUF [ $i ] { $j } ) {                     case "!":                         if ( ( substr ( $this->BUF [ $i ], ( $j + 3 ), 8 ) ) == "NETSCAPE" ) {                             printf    ( "%s: %s ( %s source )!", $this->VER, $this->ERR [ "ERR03" ], ( $i + 1 ) );                             exit    ( 0 );                         }                         break;                     case ";":                         $k = FALSE;                         break;                 }             }         }         GIFEncoder::GIFAddHeader ( );         for ( $i = 0; $i < count ( $this->BUF ); $i++ ) {             GIFEncoder::GIFAddFrames ( $i, $GIF_dly [ $i ] );         }         GIFEncoder::GIFAddFooter ( );     }     /*     :::::::::::::::::::::::::::::::::::::::::::::::::::     ::     ::    GIFAddHeader...     ::     */     function GIFAddHeader ( ) {         $cmap = 0;          if ( ord ( $this->BUF [ 0 ] { 10 } ) & 0x80 ) {             $cmap = 3 * ( 2 << ( ord ( $this->BUF [ 0 ] { 10 } ) & 0x07 ) );              $this->GIF .= substr ( $this->BUF [ 0 ], 6, 7        );             $this->GIF .= substr ( $this->BUF [ 0 ], 13, $cmap    );             $this->GIF .= "!37713NETSCAPE2.031" . GIFEncoder::GIFWord ( $this->LOP ) . "";         }     }     /*     :::::::::::::::::::::::::::::::::::::::::::::::::::     ::     ::    GIFAddFrames...     ::     */     function GIFAddFrames ( $i, $d ) {          $Locals_str = 13 + 3 * ( 2 << ( ord ( $this->BUF [ $i ] { 10 } ) & 0x07 ) );          $Locals_end = strlen ( $this->BUF [ $i ] ) - $Locals_str - 1;         $Locals_tmp = substr ( $this->BUF [ $i ], $Locals_str, $Locals_end );          $Global_len = 2 << ( ord ( $this->BUF [ 0 ] { 10 } ) & 0x07 );         $Locals_len = 2 << ( ord ( $this->BUF [ $i ] { 10 } ) & 0x07 );          $Global_rgb = substr ( $this->BUF [ 0 ], 13,                             3 * ( 2 << ( ord ( $this->BUF [ 0 ] { 10 } ) & 0x07 ) ) );         $Locals_rgb = substr ( $this->BUF [ $i ], 13,                             3 * ( 2 << ( ord ( $this->BUF [ $i ] { 10 } ) & 0x07 ) ) );          $Locals_ext = "!xF9x04" . chr ( ( $this->DIS << 2 ) + 0 ) .                         chr ( ( $d >> 0 ) & 0xFF ) . chr ( ( $d >> 8 ) & 0xFF ) . "x0x0";          if ( $this->COL > -1 && ord ( $this->BUF [ $i ] { 10 } ) & 0x80 ) {             for ( $j = 0; $j < ( 2 << ( ord ( $this->BUF [ $i ] { 10 } ) & 0x07 ) ); $j++ ) {                 if    (                         ord ( $Locals_rgb { 3 * $j + 0 } ) == ( $this->COL >> 0 ) & 0xFF &&                         ord ( $Locals_rgb { 3 * $j + 1 } ) == ( $this->COL >> 8 ) & 0xFF &&                         ord ( $Locals_rgb { 3 * $j + 2 } ) == ( $this->COL >> 16 ) & 0xFF                     ) {                     $Locals_ext = "!xF9x04" . chr ( ( $this->DIS << 2 ) + 1 ) .                                     chr ( ( $d >> 0 ) & 0xFF ) . chr ( ( $d >> 8 ) & 0xFF ) . chr ( $j ) . "x0";                     break;                 }             }         }         switch ( $Locals_tmp { 0 } ) {             case "!":                 $Locals_img = substr ( $Locals_tmp, 8, 10 );                 $Locals_tmp = substr ( $Locals_tmp, 18, strlen ( $Locals_tmp ) - 18 );                 break;             case ",":                 $Locals_img = substr ( $Locals_tmp, 0, 10 );                 $Locals_tmp = substr ( $Locals_tmp, 10, strlen ( $Locals_tmp ) - 10 );                 break;         }         if ( ord ( $this->BUF [ $i ] { 10 } ) & 0x80 && $this->IMG > -1 ) {             if ( $Global_len == $Locals_len ) {                 if ( GIFEncoder::GIFBlockCompare ( $Global_rgb, $Locals_rgb, $Global_len ) ) {                     $this->GIF .= ( $Locals_ext . $Locals_img . $Locals_tmp );                 }                 else {                     $byte = ord ( $Locals_img { 9 } );                     $byte |= 0x80;                     $byte &= 0xF8;                     $byte |= ( ord ( $this->BUF [ 0 ] { 10 } ) & 0x07 );                     $Locals_img { 9 } = chr ( $byte );                     $this->GIF .= ( $Locals_ext . $Locals_img . $Locals_rgb . $Locals_tmp );                 }             }             else {                 $byte = ord ( $Locals_img { 9 } );                 $byte |= 0x80;                 $byte &= 0xF8;                 $byte |= ( ord ( $this->BUF [ $i ] { 10 } ) & 0x07 );                 $Locals_img { 9 } = chr ( $byte );                 $this->GIF .= ( $Locals_ext . $Locals_img . $Locals_rgb . $Locals_tmp );             }         }         else {             $this->GIF .= ( $Locals_ext . $Locals_img . $Locals_tmp );         }         $this->IMG = 1;     }     /*     :::::::::::::::::::::::::::::::::::::::::::::::::::     ::     ::    GIFAddFooter...     ::     */     function GIFAddFooter ( ) {         $this->GIF .= ";";     }     /*     :::::::::::::::::::::::::::::::::::::::::::::::::::     ::     ::    GIFBlockCompare...     ::     */     function GIFBlockCompare ( $GlobalBlock, $LocalBlock, $Len ) {          for ( $i = 0; $i < $Len; $i++ ) {             if    (                     $GlobalBlock { 3 * $i + 0 } != $LocalBlock { 3 * $i + 0 } ||                     $GlobalBlock { 3 * $i + 1 } != $LocalBlock { 3 * $i + 1 } ||                     $GlobalBlock { 3 * $i + 2 } != $LocalBlock { 3 * $i + 2 }                 ) {                     return ( 0 );             }         }          return ( 1 );     }     /*     :::::::::::::::::::::::::::::::::::::::::::::::::::     ::     ::    GIFWord...     ::     */     function GIFWord ( $int ) {          return ( chr ( $int & 0xFF ) . chr ( ( $int >> 8 ) & 0xFF ) );     }     /*     :::::::::::::::::::::::::::::::::::::::::::::::::::     ::     ::    GetAnimation...     ::     */     function GetAnimation ( ) {         return ( $this->GIF );     } }  ?> 

为大师分享两个实例供大师参考:

实例 1 分化gif动画:

<?php include "GIFEncoder.class.php"; /*   Build a frames array from sources... */ if ( $dh = opendir ( "frames/" ) ) {   while ( false !== ( $dat = readdir ( $dh ) ) ) {     if ( $dat != "." && $dat != ".." ) {       $frames [ ] = "frames/$dat";       $framed [ ] = 5;     }   }   closedir ( $dh ); } /*     GIFEncoder constructor:     =======================      image_stream = new GIFEncoder  (               URL or Binary data "Sources"               int         "Delay times"               int         "Animation loops"               int         "Disposal"               int         "Transparent red, green, blue colors"               int         "Source type"             ); */ $gif = new GIFEncoder  (       $frames,       $framed,       0,       2,       0, 0, 0,       "url"     ); /*     Possibles outputs:     ==================      Output as GIF for browsers :       - Header ( "Content-type:image/gif" );     Output as GIF for browsers with filename:       - Header ( "Content-disposition:Attachment;filename=myanimation.gif");     Output as file to store into a specified file:       - FWrite ( FOpen ( "myanimation.gif", "wb" ), $gif->GetAnimation ( ) ); */ Header ( "Content-type:image/gif" ); echo  $gif->GetAnimation ( ); ?> 

实例 2 建立gif动画:

<?php include "GIFEncoder.class.php";  ob_start(); $board_width = 60; $board_height = 60; $pad_width = 5; $pad_height = 15; $ball_size = 5; $game_width = $board_width - $pad_width*2 - $ball_size; $game_height = $board_height-$ball_size;  $x = 0; $y = rand(0,$game_height); $xv = rand(1,10); $yv = rand(1,10); $pt[] = array($x,$y); do{     $x += $xv;     $y += $yv;     if($x > $game_width){         $xv = -1*$xv;         $x = $game_width - ($x-$game_width);     }elseif($x < 0){         $xv = -1*$xv;         $x = abs($x);     }     if($y>$game_height){         $yv = -1*$yv;         $y = $game_height - ($y - $game_height);     }elseif($y<0){         $yv = -1*$yv;         $y = abs($y);     }     $pt[] = array($x,$y); }while($x!=$pt[0][0]||$y!=$pt[0][1]);  $i = 0; while(isset($pt[$i])){     $image = imagecreate($board_width,$board_height);     imagecolorallocate($image, 0,0,0);     $color = imagecolorallocate($image, 255,255,255);     $color2 = imagecolorallocate($image, 255,0,0);          if($pt[$i][1] + $pad_height < $board_width){         imagefilledrectangle($image,0,$pt[$i][1],$pad_width, $pt[$i][1]+$pad_height,$color);     }else{         imagefilledrectangle($image,0,$board_width-$pad_height,$pad_width, $board_width,$color);     }     imagefilledrectangle($image,$board_width-$pad_width,0,$board_width, $board_height,$color2);     imagefilledrectangle($image,$pad_width+$pt[$i][0], $ball_size+$pt[$i][1]-$ball_size, $pad_width+$pt[$i][0]+$ball_size, $ball_size+$pt[$i][1],$color);     //imagesetpixel($image,$pt[$i][0],$pt[$i][1],$color);     imagegif($image);     imagedestroy($image);     $imagedata[] = ob_get_contents();     ob_clean();     ++$i; }  $gif = new GIFEncoder(               $imagedata,               100,               0,               2,               0, 0, 1,               "bin"     );      Header ("Content-type:image/gif"); echo $gif->GetAnimation(); ?> 

以上便是教大师若何操纵php分化或是建立gif动画,但愿大师细心研讨分享的两个实例,有所收成。

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