php合成可能创建gif动画

1. 首先需要确认GD库是否正常。

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2. 如何是合成图片，请确保把分解的图片放在frames的文件夹里面。

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3. GIFEncoder.class.php 类

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"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 .= "!\377\13NETSCAPE2.0\3\1" . GIFEncoder::GIFWord ( $this->LOP ) . "\0";                }        }        /*        :::::::::::::::::::::::::::::::::::::::::::::::::::        ::        ::        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 = "!\xF9\x04" . chr ( ( $this->DIS << 2 ) + 0 ) .                                                chr ( ( $d >> 0 ) & 0xFF ) . chr ( ( $d >> 8 ) & 0xFF ) . "\x0\x0";                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 = "!\xF9\x04" . 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 );        }}?>

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4. 实例 1 合成gif动画：

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GetAnimation ( ) );*/Header ( 'Content-type:image/gif' );echo	$gif->GetAnimation ( );?>

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5. 实例 2 创建gif动画：

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 $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();?>

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6. 全部内容见附件。

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