帝国cms加载自动缩略图
0 126 2025-12-21 18:34:33
收藏
/e/class/gd.php
初始源码如下
function ResizeImage($big_image_name, $new_name, $max_width = 400, $max_height = 400, $resize = 1){
$returnr['file']='';
$returnr['filetype']='';
if($temp_img_type = @getimagesize($big_image_name)) {preg_match('//([a-z]+)$/i', $temp_img_type[mime], $tpn); $img_type = $tpn[1];}
else {preg_match('/.([a-z]+)$/i', $big_image_name, $tpn); $img_type = $tpn[1];}
$all_type = array(
"jpg" => array("create"=>"ImageCreateFromjpeg", "output"=>"imagejpeg" , "exn"=>".jpg"),
"gif" => array("create"=>"ImageCreateFromGIF" , "output"=>"imagegif" , "exn"=>".gif"),
"jpeg" => array("create"=>"ImageCreateFromjpeg", "output"=>"imagejpeg" , "exn"=>".jpg"),
"png" => array("create"=>"imagecreatefrompng" , "output"=>"imagepng" , "exn"=>".png"),
"wbmp" => array("create"=>"imagecreatefromwbmp", "output"=>"image2wbmp" , "exn"=>".wbmp")
);
$func_create = $all_type[$img_type]['create'];
if(empty($func_create) or !function_exists($func_create))
{
return $returnr;
}
//输出
$func_output = $all_type[$img_type]['output'];
$func_exname = $all_type[$img_type]['exn'];
if(($func_exname=='.gif'||$func_exname=='.png'||$func_exname=='.wbmp')&&!function_exists($func_output))
{
$func_output='imagejpeg';
$func_exname='.jpg';
}
$big_image = $func_create($big_image_name);
$big_width = imagesx($big_image);
$big_height = imagesy($big_image);
if($big_width <= $max_width and $big_height <= $max_height)
{
$func_output($big_image, $new_name.$func_exname);
$returnr['file']=$new_name.$func_exname;
$returnr['filetype']=$func_exname;
return $returnr;
}
$ratiow = $max_width / $big_width;
$ratioh = $max_height / $big_height;
if($resize == 1) {
if($big_width >= $max_width and $big_height >= $max_height)
{
if($big_width > $big_height)
{
$tempx = $max_width / $ratioh;
$tempy = $big_height;
$srcX = ($big_width - $tempx) / 2;
$srcY = 0;
} else {
$tempy = $max_height / $ratiow;
$tempx = $big_width;
$srcY = ($big_height - $tempy) / 2;
$srcX = 0;
}
} else {
if($big_width > $big_height)
{
$tempx = $max_width;
$tempy = $big_height;
$srcX = ($big_width - $tempx) / 2;
$srcY = 0;
} else {
$tempy = $max_height;
$tempx = $big_width;
$srcY = ($big_height - $tempy) / 2;
$srcX = 0;
}
}
} else {
$srcX = 0;
$srcY = 0;
$tempx = $big_width;
$tempy = $big_height;
}
$new_width = ($ratiow > 1) ? $big_width : $max_width;
$new_height = ($ratioh > 1) ? $big_height : $max_height;
if(function_exists("imagecopyresampled"))
{
$temp_image = imagecreatetruecolor($new_width, $new_height);
imagecopyresampled($temp_image, $big_image, 0, 0, $srcX, $srcY, $new_width, $new_height, $tempx, $tempy);
} else {
$temp_image = imagecreate($new_width, $new_height);
imagecopyresized($temp_image, $big_image, 0, 0, $srcX, $srcY, $new_width, $new_height, $tempx, $tempy);
}
$func_output($temp_image, $new_name.$func_exname);
ImageDestroy($big_image);
ImageDestroy($temp_image);
$returnr['file']=$new_name.$func_exname;
$returnr['filetype']=$func_exname;
return $returnr;
}
function ResizeImage($big_image_name, $new_name, $max_width = 400, $max_height = 400, $resize = 1){
$returnr['file']='';
$returnr['filetype']='';
$JPG_QUALITY = 80; //jpg图片质量，最高100
$PNG_COMPRESS = 8; //png压缩率，最高9
if($temp_img_type = @getimagesize($big_image_name)) {preg_match('//([a-z]+)$/i', $temp_img_type[mime], $tpn); $img_type = $tpn[1];}
else {preg_match('/.([a-z]+)$/i', $big_image_name, $tpn); $img_type = $tpn[1];}
$all_type = array(
"jpg" => array("create"=>"ImageCreateFromjpeg", "output"=>"imagejpeg" , "exn"=>".jpg"),
"gif" => array("create"=>"ImageCreateFromGIF" , "output"=>"imagegif" , "exn"=>".gif"),
"jpeg" => array("create"=>"ImageCreateFromjpeg", "output"=>"imagejpeg" , "exn"=>".jpg"),
"png" => array("create"=>"imagecreatefrompng" , "output"=>"imagepng" , "exn"=>".png"),
"wbmp" => array("create"=>"imagecreatefromwbmp", "output"=>"image2wbmp" , "exn"=>".wbmp")
);
$func_create = $all_type[$img_type]['create'];
if(empty($func_create) or !function_exists($func_create))
{
return $returnr;
}
//输出
$func_output = $all_type[$img_type]['output'];
$func_exname = $all_type[$img_type]['exn'];
if(($func_exname=='.gif'||$func_exname=='.png'||$func_exname=='.wbmp')&&!function_exists($func_output))
{
$func_output='imagejpeg';
$func_exname='.jpg';
}
$big_image = $func_create($big_image_name);
$big_width = imagesx($big_image);
$big_height = imagesy($big_image);
if($big_width <= $max_width and $big_height <= $max_height)
{
$func_output($big_image, $new_name.$func_exname);
$returnr['file']=$new_name.$func_exname;
$returnr['filetype']=$func_exname;
return $returnr;
}
$ratiow = $max_width / $big_width;
$ratioh = $max_height / $big_height;
if($resize == 1) {
if($big_width >= $max_width and $big_height >= $max_height)
{
if($big_width > $big_height)
{
$tempx = $max_width / $ratioh;
$tempy = $big_height;
$srcX = ($big_width - $tempx) / 2;
$srcY = 0;
} else {
$tempy = $max_height / $ratiow;
$tempx = $big_width;
$srcY = ($big_height - $tempy) / 2;
$srcX = 0;
}
} else {
if($big_width > $big_height)
{
$tempx = $max_width;
$tempy = $big_height;
$srcX = ($big_width - $tempx) / 2;
$srcY = 0;
} else {
$tempy = $max_height;
$tempx = $big_width;
$srcY = ($big_height - $tempy) / 2;
$srcX = 0;
}
}
} else {
$srcX = 0;
$srcY = 0;
$tempx = $big_width;
$tempy = $big_height;
}
$new_width = ($ratiow > 1) ? $big_width : $max_width;
$new_height = ($ratioh > 1) ? $big_height : $max_height;
if(function_exists("imagecopyresampled"))
{
$temp_image = imagecreatetruecolor($new_width, $new_height);
imagecopyresampled($temp_image, $big_image, 0, 0, $srcX, $srcY, $new_width, $new_height, $tempx, $tempy);
} else {
$temp_image = imagecreate($new_width, $new_height);
imagecopyresized($temp_image, $big_image, 0, 0, $srcX, $srcY, $new_width, $new_height, $tempx, $tempy);
}
// $func_output($temp_image, $new_name.$func_exname);
if ($func_output == 'imagejpeg' || $func_output == 'image2wbmp') {
$func_output($temp_image, $new_name.$func_exname, $JPG_QUALITY);
} elseif ($func_output == 'imagepng') {
$func_output($temp_image, $new_name.$func_exname, $PNG_COMPRESS);
} else {
$func_output($temp_image, $new_name.$func_exname);
}
ImageDestroy($big_image);
ImageDestroy($temp_image);
$returnr['file']=$new_name.$func_exname;
$returnr['filetype']=$func_exname;
return $returnr;
}
<?=sys_ResizeImg($bqr3['titlepic'],288, 192, 1)?>本文地址：https://xzo.com.cn/develop/empire/1318.html
如果您认可我们的分享，有意与我们合作开展帝国cms网站建设与开发业务或插件定制，请联系右侧在线客服。我们能给您的，就是高质量的模板与售后。
标注了信息来源为下载鸥的文章皆为原创，如果是转载的优质文章，我们也都标注了出处。如果您喜欢我们的文章，请按照下载鸥所标注的文章出处进行标注，谢谢您的配合。
帝国cms是一款功能极为强大的cms程序，性能强悍、安全性高，可轻松支持10万数据，高级开发人员可制作出能容纳千万数据量的网站，是国内最出色的开源cms程序之一，推荐企业用户使用。
当前最新版本为7.5，8.0版本即将上线，新版本的核心优化点在于多终端的适配。
使用帝国CMS的朋友可能有这样的需求:由于信息发生变化，或是数据出了问题，想要...
帝国cms默认的下载地址是点击后弹窗一个小窗口，用户体验度并不好，但我们可以...
帝国cms会员用户组功能十分强大，用户可以根据情况选择个人会员或企业会员等，...
很多用惯了织梦CMS的朋友在用帝国以后就会非常困惑，因为织梦CMS他的栏目是有...
帝国CMS多值字段是一个字段包含N条内容的方法，通过合理运用多值字段，我们可以...
如果对被攻击一无所知，也没有听说过CC、DDoS的概念，那被攻击以后，只能懵逼等到...
如果直接在帝国cms模板中插入360推送代码，会发现在插入360推送代码后，无法正...
帝国cms刷新栏目页后会自动生成全部栏目列表，但几天在处理客户站点时发现出...
帝国cms默认只有上次登录时间与ip，没有一个记录清单，所以今天，我们分享这个帝...
帝国cms有自带的给关键词添加内链功能，但需要手动添加关键词，容易出现疏漏和...
采集站的必备资源是自动审核，要做到日收录也离不开定时发布。而本插件的自动...
下载鸥开发了这款帝国cms封禁ip插件，自动记录访问情况，让我们可以更快的识别...
用户体验是我们的需求，百度蜘蛛的认可更是我们的需求。毕竟，没有收录排名，何来...
许多网站会做一些小功能小插件给客户使用以增强用户黏性，比如图片转文字，这种...
本插件基于帝国cms帝国cms每日自动审核插件，在自动审核指定条数信息的基础上...
通过本插件，可以实现帝国cms网站对接百度云api实现图像清晰度增强的功能。经...