PHP 获取图片宽度
getimagesize
$image_file = "64.jpg ";
$image_size = getimagesize($image_file);
print( "图片的宽度: ". $image_size[0]. "
");
print( "图片的高度: ". $image_size[1]. "
");
print( "文件的格式为: ". $image_size[2]. "
");
getimagesize
$image_file = "64.jpg ";
$image_size = getimagesize($image_file);
print( "图片的宽度: ". $image_size[0]. "
");
print( "图片的高度: ". $image_size[1]. "
");
print( "文件的格式为: ". $image_size[2]. "
");
源码:
直播窗口HTML.rar
实现子菜单分类功能
原始数据:
INSERT INTO `cunwu`.`t_navi` (`id`, `type`, `name`, `pid`, `app_name`, `module_name`, `action_name`, `data`, `remark`, `url`, `often`, `ordid`, `display`) VALUES ('1', '0', '首页', '0', 'Home', 'Index', 'index', '', '', '', '0', '1', '1');
INSERT INTO `cunwu`.`t_navi` (`id`, `type`, `name`, `pid`, `app_name`, `module_name`, `action_name`, `data`, `remark`, `url`, `often`, `ordid`, `display`) VALUES ('2', '0', '村屋', '0', 'Home', 'Lists', 'index', 'id/1', '', '', '0', '1', '1');
INSERT INTO `cunwu`.`t_navi` (`id`, `type`, `name`, `pid`, `app_name`, `module_name`, `action_name`, `data`, `remark`, `url`, `often`, `ordid`, `display`) VALUES ('4', '0', '资讯', '2', 'Home', 'News', 'index', '', '', '', '0', '1', '1');
INSERT INTO `cunwu`.`t_navi` (`id`, `type`, `name`, `pid`, `app_name`, `module_name`, `action_name`, `data`, `remark`, `url`, `often`, `ordid`, `display`) VALUES ('5', '0', '土地', '0', 'Home', 'Lists', 'index', 'id/2', '', '', '0', '1', '1');
实现以下结果:
Array
(
[0] => Array
(
[id] => 1
[type] => 0
[name] => 首页
[pid] => 0
[app_name] => Home
[module_name] => Index
[action_name] => index
[data] =>
[remark] =>
[url] =>
[often] => 0
[ordid] => 1
[display] => 1
)
[1] => Array
(
[id] => 2
[type] => 0
[name] => 村屋
[pid] => 0
[app_name] => Home
[module_name] => Lists
[action_name] => index
[data] => id/1
[remark] =>
[url] =>
[often] => 0
[ordid] => 1
[display] => 1
[children] => Array
(
[0] => Array
(
[id] => 4
[type] => 0
[name] => 资讯
[pid] => 2
[app_name] => Home
[module_name] => News
[action_name] => index
[data] =>
[remark] =>
[url] =>
[often] => 0
[ordid] => 1
[display] => 1
)
)
)
[2] => Array
(
[id] => 5
[type] => 0
[name] => 土地
[pid] => 0
[app_name] => Home
[module_name] => Lists
[action_name] => index
[data] => id/2
[remark] =>
[url] =>
[often] => 0
[ordid] => 1
[display] => 1
)
)
思路方法:
1、查询出当前的菜单数据
2、设计递归算法实现计算
3、得出具有二级数组的父子数据
4、嵌套到模板就可以实现
以下是递归算法:
#递归函数
public function recur($data,$pid=0){
$list = [];
if(is_array($data)){
$total = count($data);
foreach($data as $k=>$v){
if($v['pid']==$pid){
$v['children']=$this->recur($data,$v['id']);
if($v['children']==null){
unset($v['children']);
}
$list[] = $v;
}
}
}
return $list;
}
以下是应用的示例代码:
$navi_data =M('navi')->where(array('status'=>1))->order('ordid desc')->select();
$navi_list=$this->recur($navi_data);
print_r($navi_list);
下面看实现的效果吧:
1.在存储之前用base64对数据进行编码然后存入
base64_encode()
2.从数据库拿出来之前再进行解码
base64_decode()
<?php
$text="阡陌建站\r\n广州专业建站团队 \r\n企业官网建设\r\n公众号开发\r\n小程序开发";
$d=str_replace("\r\n", "\n", $text);
echo $d;
?>
**这是输出结果:**
阡陌建站
广州专业建站团队
企业官网建设
公众号开发
小程序开发
<?php
$text='阡陌建站\r\n广州专业建站团队 \r\n企业官网建设\r\n公众号开发\r\n小程序开发';
$d=str_replace("\r\n", "\n", $text);
echo $d;
?>
**这是输出结果:**
阡陌建站\r\n广州专业建站团队 \r\n企业官网建设\r\n公众号开发\r\n小程序开发
通过以上两个的验证:单引号无法对rn解析,双引号才支持nr的识别。
如果数据是赋值或从数据库查询处理的,要进行这个处理。(笨鱼验证过,从数据查询出来,经过多番验证和亲测,代码要做以下修改才能识别)。
$d=str_replace("\\r\\n", "\n", $text);
以下是代码
<IfModule mod_rewrite.c>
Options +FollowSymlinks -Multiviews
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ index.php?s=$1 [QSA,PT,L]
#301重定向
RewriteCond %{HTTPS} off
RewriteRule .* https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
</IfModule>
语法:
$data ={"media":"@/www/web/www_kinmor_com/public_html/Uploads/Wechat/image/20180625/5b30ae2976d25.jpg"}
$data =str_replace('"',''',$data);
echo $data;
结果:
$data ={'media':'@/www/web/www_kinmor_com/public_html/Uploads/Wechat/image/20180625/5b30ae2976d25.jpg'}