<?
function PF_isEmail($String){
if (preg_match("/([a-zA-Z0-9])+@+([a-zA-Z0-9])+.+([a-zA-Z0-9])/",$String)){
return true;
}else{
return false;
}
}
?>
<?
function diffElement($arr1,$arr2){
$result = array();
foreach($arr1 as $key => $val ){
if(!in_array($val, $arr2))
array_push($result, $val);
}
foreach($arr2 as $key => $val ){
if(!in_array($val, $arr1))
array_push($result, $val);
}
return $result;
}
?>
函数描述及例子
$a = array(1,3,6,7,8);
$b = array(4,3,6,7,0);
print_r(diffElement($a,$b));
php获取指定日期所在周的开始和结束日期
<?
function aweek($gdate = "", $first = 0){
if(!$gdate) $gdate = date("Y-m-d");
$w = date("w", strtotime($gdate));
$dn = $w $w - $first : 6;
$st = date("Y-m-d", strtotime("$gdate -".$dn." days"));
$en = date("Y-m-d", strtotime("$st +6 days"));
return array($st, $en);
}
?>
函数描述及例子
$w = aweek('2011-05-11');
PHP获取一年内所有周的开始和结束日期
<?
function get_weeks($year) {
$year_start = $year . "-01-01";
$year_end = $year . "-12-31";
$startday = strtotime($year_start);
if (intval(date('N', $startday)) != '1') {
$startday=strtotime("next Monday",strtotime($year_start)); //获取年第一周的日期
}
$year_mondy = date("Y-m-d", $startday); //获取年第一周的日期
$endday = strtotime($year_end);
if (intval(date('W', $endday)) == '7') {
$endday=strtotime("last Sunday",strtotime($year_end));
}
$num = intval(date('W', $endday));
for ($i = 1; $i <= $num; $i++) {
$j = $i -1;
$start_date = date("Y-m-d", strtotime("$year_mondy $j week "));
$end_day = date("Y-m-d", strtotime("$start_date +6 day"));
$week_array[$i] = array (str_replace("-", ".", $start_date), str_replace("-", ".", $end_day));
}
return $week_array;
}
?>
函数描述及例子
$week = get_weeks(2011);
PHP获取FLV文件播放时间函数
<?
function BigEndian2Int($byte_word, $signed = false){
$int_value = 0;
$byte_wordlen = strlen($byte_word);
for ($i = 0; $i < $byte_wordlen; $i++){
$int_value += ord($byte_word{$i}) * pow(256, ($byte_wordlen - 1 - $i));
}
if ($signed){
$sign_mask_bit = 0x80 << (8 * ($byte_wordlen - 1));
if ($int_value & $sign_mask_bit){
$int_value = 0 - ($int_value & ($sign_mask_bit - 1));
}
}
return $int_value;
}
function getTime($name){
if(!file_exists($name)){return;}
$flv_data_length=filesize($name);
$fp = @fopen($name, 'rb');
$flv_header = fread($fp, 5);
fseek($fp, 5, SEEK_SET);
$frame_size_data_length =BigEndian2Int(fread($fp, 4));
$flv_header_frame_length = 9;
if ($frame_size_data_length > $flv_header_frame_length){
fseek($fp, $frame_size_data_length - $flv_header_frame_length, SEEK_CUR);
}
$duration = 0;
while ((ftell($fp) + 1) < $flv_data_length){
$this_tag_header = fread($fp, 16);
$data_length = BigEndian2Int(substr($this_tag_header, 5, 3));
$timestamp = BigEndian2Int(substr($this_tag_header, 8, 3));
$next_offset = ftell($fp) - 1 + $data_length;
if ($timestamp > $duration) {
$duration = $timestamp;
}
fseek($fp, $next_offset, SEEK_SET);
}
fclose($fp);
return $duration;
}
function fn($time){
$num = $time;
$sec = intval($num / 1000);
$h = intval($sec / 3600);
$m = intval(($sec % 3600) / 60);
$s = intval(($sec % 60 ));
$tm = $h . ':' . $m . ':' . $s;
return $tm;
}
?>
函数描述及例子
echo fn(getTime("VTS_01_5.flv"));
PHP图片处理类：缩略，裁剪，圆角，倾斜
<?
/*
图片处理类：缩略，裁剪，圆角，倾斜
网站：http://www.13980.com
*/
class resizeimage
{
//图片类型
var $type;
//实际宽度
var $width;
//实际高度
var $height;
//改变后的宽度
var $resize_width;
//改变后的高度
var $resize_height;
//是否裁图
var $cut;
//源图象
var $srcimg;
//目标图象地址
var $dstimg;
//圆角源
var $corner;
var $im;
function resizeimage($img, $corner, $wid, $hei,$c, $corner_radius, $angle)
{
$this->srcimg = $img;
$this->corner = $corner;
$this->resize_width = $wid;
$this->resize_height = $hei;
$this->cut = $c;
$this->corner_radius = $corner_radius;
$this->angle = $angle;
//图片的类型
$this->type = substr(strrchr($this->srcimg,"."),1);
//初始化图象
$this->initi_img();
//目标图象地址
$this -> dst_img();
//--
$this->width = imagesx($this->im);
$this->height = imagesy($this->im);
//生成图象
$this->newimg();
ImageDestroy ($this->im);
}
function newimg()
{
//改变后的图象的比例
$resize_ratio = ($this->resize_width)/($this->resize_height);
//实际图象的比例
$ratio = ($this->width)/($this->height);
if(($this->cut)=="1")
//裁图
{
if($ratio>=$resize_ratio)
//高度优先
{
$newimg = imagecreatetruecolor($this->resize_width,$this->resize_height);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width,$this->resize_height, (($this->height)*$resize_ratio), $this->height);
$tmp = $this->rounded_corner($newimg,$this->resize_width);
imagepng ($tmp,$this->dstimg);
}
if($ratio<$resize_ratio)
//宽度优先
{
$newimg = imagecreatetruecolor($this->resize_width,$this->resize_height);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width, $this->resize_height, $this->width, (($this->width)/$resize_ratio));
$tmp = $this->rounded_corner($newimg);
imagepng ($tmp,$this->dstimg);
}
}
else
//不裁图
{
if($ratio>=$resize_ratio)
{
$newimg = imagecreatetruecolor($this->resize_width,($this->resize_width)/$ratio);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width, ($this->resize_width)/$ratio, $this->width, $this->height);
ImageJpeg ($newimg,$this->dstimg);
}
if($ratio<$resize_ratio)
{
$newimg = imagecreatetruecolor(($this->resize_height)*$ratio,$this->resize_height);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, ($this->resize_height)*$ratio, $this->resize_height, $this->width, $this->height);
ImageJpeg ($newimg,$this->dstimg);
}
}
}
//初始化图象
function initi_img()
{
if($this->type=="jpg")
{
$this->im = imagecreatefromjpeg($this->srcimg);
}
if($this->type=="gif")
{
$this->im = imagecreatefromgif($this->srcimg);
}
if($this->type=="png")
{
$this->im = imagecreatefrompng($this->srcimg);
}
}
//处理圆角
function rounded_corner($image,$size)
{
$topleft = true;
$bottomleft = true;
$bottomright = true;
$topright = true;
$corner_source = imagecreatefrompng('rounded_corner.png');
$corner_width = imagesx($corner_source);
$corner_height = imagesy($corner_source);
$corner_resized = ImageCreateTrueColor($this->corner_radius, $this->corner_radius);
ImageCopyResampled($corner_resized, $corner_source, 0, 0, 0, 0, $this->corner_radius, $this->corner_radius, $corner_width, $corner_height);
$corner_width = imagesx($corner_resized);
$corner_height = imagesy($corner_resized);
$white = ImageColorAllocate($image,255,255,255);
$black = ImageColorAllocate($image,0,0,0);
//顶部左圆角
if ($topleft == true) {
$dest_x = 0;
$dest_y = 0;
imagecolortransparent($corner_resized, $black);
imagecopymerge($image, $corner_resized, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
}
//下部左圆角
if ($bottomleft == true) {
$dest_x = 0;
$dest_y = $size - $corner_height;
$rotated = imagerotate($corner_resized, 90, 0);
imagecolortransparent($rotated, $black);
imagecopymerge($image, $rotated, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
}
//下部右圆角
if ($bottomright == true) {
$dest_x = $size - $corner_width;
$dest_y = $size - $corner_height;
$rotated = imagerotate($corner_resized, 180, 0);
imagecolortransparent($rotated, $black);
imagecopymerge($image, $rotated, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
}
//顶部右圆角
if ($topright == true) {
$dest_x = $size - $corner_width;
$dest_y = 0;
$rotated = imagerotate($corner_resized, 270, 0);
imagecolortransparent($rotated, $black);
imagecopymerge($image, $rotated, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
}
$image = imagerotate($image, $this->angle, $white);
return $image;
}
//图象目标地址
function dst_img()
{
$full_length = strlen($this->srcimg);
$type_length = strlen($this->type);
$name_length = $full_length-$type_length;
$name = substr($this->srcimg,0,$name_length-1);
$this->dstimg = $name."_small.png";
}
}
//resizeimage("图片地址", "处理后的宽度", "处理后的高度", "是否裁剪", "圆角度数", "倾斜度");
$img_file = 'Sunset.jpg';
$corner = 'rounded_corner.png';
$resizeimage = new resizeimage($img_file, $corner, "80", "80", "1", "6", "0");
?>
<img src="Sunset_small.png" border="0">
PHP 缓存函数
function array2str($array, $level = 0) {
if(!is_array($array)) {
return "'".$array."'";
}
if(is_array($array) && function_exists('var_export')) {
return var_export($array, true);
}
$space = '';
for($i = 0; $i <= $level; $i++) {
$space .= "\t";
}
$evaluate = "Array\n$space(\n";
$comma = $space;
if(is_array($array)) {
foreach($array as $key => $val) {
$key = is_string($key) ? '\''.addcslashes($key, '\'\\').'\'' : $key;
$val = !is_array($val) && (!preg_match("/^\-?[1-9]\d*$/", $val) || strlen($val) > 12) ? '\''.addcslashes($val, '\'\\').'\'' : $val;
if(is_array($val)) {
$evaluate .= "$comma$key => ".array2str($val, $level + 1);
} else {
$evaluate .= "$comma$key => $val";
}
$comma = ",\n$space";
}
}
$evaluate .= "\n$space)";
return $evaluate;
}
//typeid :文章类别
//nums：文章数量
//len：标题截取长度
//contentlen：内容截取长度
//zhiding:置顶级别
//attach:是否取附件
function getnews($typeid=0,$nums=1,$len=30,$contentlen=100,$zhiding=0,$attach=0){
global $xy_db;
$len = 100;
$mkey = md5($typeid.$nums.$len.$contentlen.$zhiding.$attach);
if(intval($nums)<1) $nums=1;
$path = SITE_ROOT_PATH.'./temp/cache/'.$mkey.'.php';
if(is_file($path)){
@require_once($path);
if(($expiration+60)>=time()){
if(is_array($cachenews)){
$j=0;
for($i=0;$i<count($cachenews);$i++){
if($j<$nums){
$data[] = $cachenews[$i];
$j++;
}
}
return $data;
}
}
}
$time = time();
if($typeid){
$cd.=" and type_id='$typeid'";
}
if($zhiding){
$cd.=" and level='$zhiding' ";
}
if($attach){
$cd.=" and attach_num>0 ";
}
if(empty($typeid)){
$cd.=" and (xy_id='".XY_ID."' or xy_id=0) ";
}else{
$cd.=" and xy_id='".XY_ID."' ";
}
$query=$xy_db->query("select * from xy_news where 1 $cd
order by orders desc, id desc limit 0,$nums ");
$cachenews = array();
$i=0;
$j=0;
while($a = $xy_db->fetch_array($query)){
if($attach){
$r = $xy_db->fetch_first("select * from xy_news_attach where news_id='$a[id]' and is_image=1 limit 0,1");
$a['picurl'] = $r['file_url'];
}
$a['addtime'] = date('m-d',$a['addtime']);
$a['content'] = cutstr(strip_tags($a['content']),$contentlen);
$a['fullsubject'] = $a['subject'];
$a['linkurl'] = 'news_detail.html?id='.$a['id'];
$cachenews[$i] = $a;
$data1[] = $cachenews[$i];
if($i<$nums){
$cachenews[$i]['subject'] = cutstr($cachenews[$i]['subject'],$len);
$data[] = $cachenews[$i];
}
$i++;
}
if($cachenews){
$cachenews = '<?php ';
$cachenews .= '$expiration = ''.time().'\';'."\n\n";
$cachenews .= "\$cachenews = ".array2str($data1).";\n\n";
$cachenews .= ' ?>';
if($fp = @fopen($path, 'w')) {
@flock($fp, 2);
fwrite($fp, $cachenews);
fclose($fp);
}
}
return $data;
}
PHP格式化数据，防止注入函数
<?
//格式化数据（防止注入）
function site_addslashes($string, $force = 0) {
!defined('MAGIC_QUOTES_GPC') && define('MAGIC_QUOTES_GPC', get_magic_quotes_gpc());
if(!MAGIC_QUOTES_GPC || $force) {
if(is_array($string)) {
foreach($string as $key => $val) {
$string[$key] = daddslashes($val, $force);
}
} else {
$string = addslashes($string);
}
}
return $string;
}
?>
PHP 设置COOKIE，并且加密COOKIE函数
<?
/*
设置COOKIE
eg:site_setcookie('username', 'bibinet');
*/
function site_setCookie($key, $value = '', $life = COOKIE_LIFE_TIME, $prefix = 0, $httponly = false) {
global $_SERVER;
$value=escape($value);
$value=strToHex($value);
$timestamp = time();
$key = ($prefix COOKIE_PRE : '').$key;
if($value == '' || $life < 0) {
$value = '';
$life = -1;
}
$life = $life > 0 $timestamp + $life : ($life < 0 $timestamp - 31536000 : 0);
$secure = $_SERVER['SERVER_PORT'] == 443 1 : 0;
//echo "$key, $value, $life, ".COOKIE_LIFE_TIME.", ".COOKIE_PATH.", ".COOKIE_DOMAIN.", $secure, $httponly";
return setcookie($key, $value, $life, COOKIE_PATH, COOKIE_DOMAIN, $secure, $httponly);
}
function site_getCookie($key,$type=1) {
global $_SERVER;
$value=$_COOKIE[$key];
if ($type){
$value=hexToStr($value);
$value=unescape($value);
}else{
$value=unescape($value);
}
return $value;
}
function strToHex($string){
$hex="";
for($i=0;$i<strlen($string);$i++)
$hex.=dechex(ord($string[$i]));
$hex=strtoupper($hex);
return $hex;
}
function hexToStr($hex){
$string="";
for ($i=0;$i<strlen($hex)-1;$i+=2)
$string.=chr(hexdec($hex[$i].$hex[$i+1]));
return $string;
}
function escape($str){
preg_match_all("/[\xc2-\xdf][\x80-\xbf]+|[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xff][\x80-\xbf]{3}|[\x01-\x7f]+/e",$str,$r);
//匹配utf-8字符，
$str = $r[0];
$l = count($str);
for($i=0; $i <$l; $i++){
$value = ord($str[$i][0]);
if($value < 223){
$str[$i] = rawurlencode(utf8_decode($str[$i]));
//先将utf8编码转换为ISO-8859-1编码的单字节字符，urlencode单字节字符.
//utf8_decode()的作用相当于iconv("UTF-8","CP1252",$v)。
}else{
$str[$i] = "%u".strtoupper(bin2hex(iconv("UTF-8","UCS-2",$str[$i])));
}
}
return join("",$str);
}
function unescape($str){
$ret = '';
$len = strlen($str);
for ($i = 0; $i < $len; $i++){
if ($str[$i] == '%' && $str[$i+1] == 'u'){
$val = hexdec(substr($str, $i+2, 4));
if ($val < 0x7f) $ret .= chr($val);
else if($val < 0x800) $ret .= chr(0xc0|($val>>6)).chr(0x80|($val&0x3f));
else $ret .= chr(0xe0|($val>>12)).chr(0x80|(($val>>6)&0x3f)).chr(0x80|($val&0x3f)); $i += 5; }
else if ($str[$i] == '%') { $ret .= urldecode(substr($str, $i, 3)); $i += 2; }
else $ret .= $str[$i];
}
return $ret;
}
?> PHP缩略图类，可生成BMP格式
<?
class resizeimage
{
//图片类型
var $type;
//实际宽度
var $width;
//实际高度
var $height;
//改变后的宽度
var $resize_width;
//改变后的高度
var $resize_height;
//是否裁图
var $cut;
//源图象
var $srcimg;
//目标图象地址
var $dstimg;
//临时建的图象
var $im;
//生成的文件名后缀
var $extstr;
function resizeimage($img, $wid, $hei,$extstr,$c=0)
{
$this->srcimg = $img;
$this->resize_width = $wid;
$this->resize_height = $hei;
$this->cut = $c;
$this->extstr = $extstr;
//图片的类型
$this->type = substr(strrchr($this->srcimg,"."),1);
//初始化图象
$this->initi_img();
//目标图象地址
$this -> dst_img();
$this->width = @imagesx($this->im);
$this->height = @imagesy($this->im);
//生成图象
$this->newimg();
@ImageDestroy ($this->im);
}
function newimg()
{
//改变后的图象的比例
$resize_ratio = ($this->resize_width)/($this->resize_height);
//实际图象的比例
if($this->height>0)
$ratio = ($this->width)/($this->height);
if(($this->cut)=="1")
//裁图
{
if($ratio>=$resize_ratio)
//高度优先
{
$newimg = @imagecreatetruecolor($this->resize_width,$this->resize_height);
@imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width,$this->resize_height, (($this->height)*$resize_ratio), $this->height);
@ImageJpeg ($newimg,$this->dstimg);
}
if($ratio<$resize_ratio)
//宽度优先
{
$newimg = @imagecreatetruecolor($this->resize_width,$this->resize_height);
@imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width, $this->resize_height, $this->width, (($this->width)/$resize_ratio));
@ImageJpeg ($newimg,$this->dstimg);
}
}
else
//不裁图
{
if($ratio>=$resize_ratio)
{
$newimg = @imagecreatetruecolor($this->resize_width,($this->resize_width)/$ratio);
@imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width, ($this->resize_width)/$ratio, $this->width, $this->height);
ImageJpeg ($newimg,$this->dstimg);
}
if($ratio<$resize_ratio)
{
$newimg = @imagecreatetruecolor(($this->resize_height)*$ratio,$this->resize_height);
@imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, ($this->resize_height)*$ratio, $this->resize_height, $this->width, $this->height);
@ImageJpeg ($newimg,$this->dstimg);
}
}
}
//初始化图象
function initi_img()
{
$type=strtolower($this->type);//转换成小写，否则不写扩展名生成不了。
if($type=="jpg" || $type=="jpeg" || $type=="jpe")
{
$this->im = @imagecreatefromjpeg($this->srcimg);
}
if($type=="gif")
{
$this->im = @imagecreatefromgif($this->srcimg);
}
if($type=="png")
{
$this->im = @imagecreatefrompng($this->srcimg);
}
if($type=="bmp")
{
$this->im = $this->imagecreatefrombmp($this->srcimg);
}
}
function imagecreatefrombmp($p_sFile){
$file = fopen($p_sFile,"rb");
$read = fread($file,10);
while(!feof($file)&&($read<>""))
$read .= fread($file,1024);
$temp = unpack("H*",$read);
$hex = $temp[1];
$header = substr($hex,0,108);
if (substr($header,0,4)=="424d"){
$header_parts = str_split($header,2);
$width = hexdec($header_parts[19].$header_parts[18]);
$height = hexdec($header_parts[23].$header_parts[22]);
unset($header_parts);
}
$x = 0;
$y = 1;
$image = imagecreatetruecolor($width,$height);
$body = substr($hex,108);
$body_size = (strlen($body)/2);
$header_size = ($width*$height);
$usePadding = ($body_size>($header_size*3)+4);
for ($i=0;$i<$body_size;$i+=3){
if ($x>=$width){
if ($usePadding)
$i += $width%4;
$x = 0;
$y++;
if ($y>$height)
break;
}
$i_pos = $i*2;
$r = hexdec($body[$i_pos+4].$body[$i_pos+5]);
$g = hexdec($body[$i_pos+2].$body[$i_pos+3]);
$b = hexdec($body[$i_pos].$body[$i_pos+1]);
$color = imagecolorallocate($image,$r,$g,$b);
imagesetpixel($image,$x,$height-$y,$color);
$x++;
}
unset($body);
return $image;
}
//图象目标地址
function dst_img()
{
$full_length = strlen($this->srcimg);
$type_length = strlen($this->type);
$name_length = $full_length-$type_length;
$name = substr($this->srcimg,0,$name_length-1);
$this->dstimg = $name.$this->extstr.'.'.$this->type;
}
static function get_url($img,$extstr){
$imgs = explode('.',$img);
$ext = end($imgs);
$full_length = strlen($img);
$type_length = strlen($ext);
$name_length = $full_length-$type_length;
$name = substr($img,0,$name_length-1);
return $name.$extstr.'.'.$ext;
}
}
?>
PHP GIF动画生成类
<?
class GifMerge {
var $ver = '1.1';
var $dly = 50;
var $mod = 'C_FILE';
var $first = true;
var $use_loop = false;
var $transparent = false;
var $use_global_in = false;
var $x = 0;
var $y = 0;
var $ch = 0;
var $fin = 0;
var $fout = '';
var $loop = 0;
var $delay = 0;
var $width = 0;
var $height = 0;
var $trans1 = 255;
var $trans2 = 255;
var $trans3 = 255;
var $disposal = 2;
var $out_color_table_size = 0;
var $local_color_table_flag = 0;
var $global_color_table_size = 0;
var $out_color_table_sizecode = 0;
var $global_color_table_sizecode= 0;
var $gif = array(0x47, 0x49, 0x46);
var $buffer = array();
var $local_in = array();
var $global_in = array();
var $global_out = array();
var $logical_screen_descriptor = array();
function GifMerge($images, $t1, $t2, $t3, $loop, $dl, $xpos, $ypos, $model) {
if($model) {
$this->mod = $model;
}
if($loop > -1) {
$this->loop = floor($loop - 1);
$this->use_loop = true;
}
if($t1 > -1 && $t2 > -1 && $t3 > -1) {
$this->trans1 = $t1;
$this->trans2 = $t2;
$this->trans3 = $t3;
$this->transparent = true;
}
for($i = 0; $i < count($images); $i++) {
$dl[$i] ? $this->delay = $dl[$i] : $this->delay = $this->dly;
$xpos[$i] ? $this->x = $xpos[$i] : $this->x = 0;
$ypos[$i] ? $this->y = $ypos[$i] : $this->y = 0;
$this->start_gifmerge_process($images[$i]);
}
$this->fout .= "\x3b";
}
function start_gifmerge_process($fp) {
if($this->mod == 'C_FILE') {
if(!$this->fin = fopen($fp, 'rb')) {
return;
}
} elseif($this->mod == 'C_MEMORY') {
$this->ch = 0;
$this->fin = $fp;
}
$this->getbytes(6);
if(!$this->arrcmp($this->buffer, $this->gif, 3)) {
return;
}
$this->getbytes(7);
if($this->first) $this->logical_screen_descriptor = $this->buffer;
$this->global_color_table_sizecode = $this->buffer[4] & 0x07;
$this->global_color_table_size = 2 << $this->global_color_table_sizecode;
if($this->buffer[4] & 0x80) {
$this->getbytes((3 * $this->global_color_table_size));
for($i = 0; $i < ((3 * $this->global_color_table_size)); $i++) {
$this->global_in[$i] = $this->buffer[$i];
}
if($this->out_color_table_size == 0) {
$this->out_color_table_size = $this->global_color_table_size;
$out_color_table_sizecode = $this->global_color_table_sizecode;
$this->global_out = $this->global_in;
}
if($this->global_color_table_size != $this->out_color_table_size || $this->arrcmp($this->global_out, $this->global_in, (3 * $this->global_color_table_size))) {
$this->use_global_in = true;
}
}
for($loop = true; $loop;) {
$this->getbytes(1);
switch($this->buffer[0]) {
case 0x21:
$this->read_extension();
break;
case 0x2c:
$this->read_image_descriptor();
break;
case 0x3b:
$loop = false;
break;
default:
$loop = false;
}
}
if($this->mod == 'C_FILE') {
fclose($this->fin);
}
}
function read_image_descriptor() {
$this->getbytes(9);
$head = $this->buffer;
$this->local_color_table_flag = ($this->buffer[8] & 0x80) ? true : false;
if($this->local_color_table_flag) {
$sizecode = $this->buffer[8] & 0x07;
$size = 2 << $sizecode;
$this->getbytes(3 * $size);
for($i = 0; $i < (3 * $size); $i++) {
$this->local_in[$i] = $this->buffer[$i];
}
if($this->out_color_table_size == 0) {
$this->out_color_table_size = $size;
$out_color_table_sizecode = $sizecode;
for($i = 0; $i < (3 * $size); $i++)
{
$this->global_out[$i] = $this->local_in[$i];
}
}
}
if($this->first) {
$this->first = false;
$this->fout .= "\x47\x49\x46\x38\x39\x61";
if($this->width && $this->height) {
$this->logical_screen_descriptor[0] = $this->width & 0xFF;
$this->logical_screen_descriptor[1] = ($this->width & 0xFF00) >> 8;
$this->logical_screen_descriptor[2] = $this->height & 0xFF;
$this->logical_screen_descriptor[3] = ($this->height & 0xFF00) >> 8;
}
$this->logical_screen_descriptor[4] |= 0x80;
$this->logical_screen_descriptor[5] &= 0xF0;
$this->logical_screen_descriptor[6] |= $this->out_color_table_sizecode;
$this->putbytes($this->logical_screen_descriptor, 7);
$this->putbytes($this->global_out, ($this->out_color_table_size * 3));
if($this->use_loop) {
$ns[0] = 0x21;
$ns[1] = 0xFF;
$ns[2] = 0x0B;
$ns[3] = 0x4e;
$ns[4] = 0x45;
$ns[5] = 0x54;
$ns[6] = 0x53;
$ns[7] = 0x43;
$ns[8] = 0x41;
$ns[9] = 0x50;
$ns[10] = 0x45;
$ns[11] = 0x32;
$ns[12] = 0x2e;
$ns[13] = 0x30;
$ns[14] = 0x03;
$ns[15] = 0x01;
$ns[16] = $this->loop & 255;
$ns[17] = $this->loop >> 8;
$ns[18] = 0x00;
$this->putbytes($ns, 19);
}
}
if($this->use_global_in) {
$outtable = $this->global_in;
$outsize = $this->global_color_table_size;
$outsizecode = $this->global_color_table_sizecode;
} else {
$outtable = $this->global_out;
$outsize = $this->out_color_table_size;
}
if($this->local_color_table_flag) {
if($size == $this->out_color_table_size && !$this->arrcmp($this->local_in, $this->global_out, $size)) {
$outtable = $global_out;
$outsize = $this->out_color_table_size;
} else {
$outtable = $this->local_in;
$outsize = $size;
$outsizecode = $sizecode;
}
}
$use_trans = false;
if($this->transparent) {
for($i = 0; $i < $outsize; $i++) {
if($outtable[3 * $i] == $this->trans1 && $outtable [3 * $i + 1] == $this->trans2 && $outtable [3 * $i + 2] == $this->trans3) {
break;
}
}
if($i < $outsize) {
$transindex = $i;
$use_trans = true;
}
}
if($this->delay || $use_trans) {
$this->buffer[0] = 0x21;
$this->buffer[1] = 0xf9;
$this->buffer[2] = 0x04;
$this->buffer[3] = ($this->disposal << 2) + ($use_trans 1 : 0);
$this->buffer[4] = $this->delay & 0xff;
$this->buffer[5] = ($this->delay & 0xff00) >> 8;
$this->buffer[6] = $use_trans $transindex : 0;
$this->buffer[7] = 0x00;
$this->putbytes($this->buffer,8);
}
$this->buffer[0] = 0x2c;
$this->putbytes($this->buffer,1);
$head[0] = $this->x & 0xff;
$head[1] = ($this->x & 0xff00) >> 8;
$head[2] = $this->y & 0xff;
$head[3] = ($this->y & 0xff00) >> 8;
$head[8] &= 0x40;
if($outtable != $this->global_out) {
$head[8] |= 0x80;
$head[8] |= $outsizecode;
}
$this->putbytes($head,9);
if($outtable != $this->global_out) {
$this->putbytes($outtable, (3 * $outsize));
}
$this->getbytes(1);
$this->putbytes($this->buffer,1);
for(;;) {
$this->getbytes(1);
$this->putbytes($this->buffer,1);
if(($u = $this->buffer[0]) == 0) {
break;
}
$this->getbytes($u);
$this->putbytes($this->buffer, $u);
}
}
function read_extension() {
$this->getbytes(1);
switch($this->buffer[0]) {
case 0xf9:
$this->getbytes(6);
break;
case 0xfe:
for(;;) {
$this->getbytes(1);
if(($u = $this->buffer[0]) == 0) {
break;
}
$this->getbytes($u);
}
break;
case 0x01:
$this->getbytes(13);
for(;;) {
$this->getbytes(0);
if(($u = $this->buffer[0]) == 0) {
break;
}
$this->getbytes($u);
}
break;
case 0xff:
$this->getbytes(9);
$this->getbytes(3);
for(;;) {
$this->getbytes(1);
if(!$this->buffer[0]) {
break;
}
$this->getbytes($this->buffer[0]);
}
break;
default:
for(;;) {
$this->getbytes(1);
if(!$this->buffer[0]) {
break;
}
$this->getbytes($this->buffer[0]);
}
}
}
function arrcmp($b, $s, $l) {
for($i = 0; $i < $l; $i++) {
if($s{$i} != $b{$i}) {
return false;
}
}
return true;
}
function getbytes($l) {
for($i = 0; $i < $l; $i++) {
if($this->mod == 'C_FILE') {
$bin = unpack('C*', fread($this->fin, 1));
$this->buffer[$i] = $bin[1];
} elseif($this->mod == 'C_MEMORY') {
$bin = unpack('C*', substr($this->fin, $this->ch, 1));
$this->buffer[$i] = $bin[1];
$this->ch++;
}
}
return $this->buffer;
}
function putbytes($s, $l) {
for($i = 0; $i < $l; $i++) {
$this->fout .= pack('C*', $s[$i]);
}
}
function getAnimation() {
return $this->fout;
}
}
?>
PHP常用测试函数
<?
function bug($str)
{
$fp = fopen("./bug_log.txt","a+");
flock($fp, LOCK_EX) ;
fwrite($fp,$str."\n");
flock($fp, LOCK_UN);
fclose($fp);
}
?>
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