我有一个类别,有2个子类别.在每个类别中,有5个子类别.
有没有办法获得所有这10个子子类别的列表?
谢谢
编辑:
像这样的东西:
Main Category
Sub_Cat_1
Cat_1
Cat_2
Cat_3
Sub_Cat_2
Cat_4
Cat_5
Cat_6
Wanting output like:
Cat_1
Cat_2
Cat_3
Cat_4
Cat_5
Cat_6
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谢谢
我有一个对象集合,表现得像一个数组.它是一个数据库结果对象.类似于以下内容:
$users = User::get();
foreach ($users as $user)
echo $user->name . "\n";
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该$users变量是一个实现对象ArrayAccess和Countable接口.
我想对这个"数组"进行排序和过滤,但我不能在其上使用数组函数:
$users = User::get();
$users = array_filter($users, function($user) {return $user->source == "Twitter";});
=> Warning: array_filter() expects parameter 1 to be array, object given
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如何我可以排序和筛选这种类型的对象?
我在Windows上向Git存储库添加了大量PNG文件,遗憾的是设置text eol=lf为不提交Windows换行符.
问题是PNG标题必须在表单中%PNG\r\n,现在所有PNG图像都在带有标题的Git中,%PNG\n并且不能像这样显示.
我尝试将此行添加到.gitattributes:
*.png binary
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但是这些文件虽然在工作目录中是正确的,但仍然显示为未更改且git add什么都不做.
我设法修复单个文件,检查损坏的版本并手动编辑它,但我希望有一个不那么繁琐的方式.
如何在不修改单个文件的情况下修复存储库?
当我进入我的网站并浏览其他网站时,我得到的参数更多:等等.php?p = pagename&id = 1
我想在.dk之后隐藏一切
我试过了:
RewriteEngine On
RewriteRule ^([a-zA-Z0-9]+)$ index.php?p=$1 [L,QSA]
RewriteRule ^([a-zA-Z0-9]+)/$ index.php?p=$1 [L,QSA]
RewriteRule ^/index.php$ http://www.madsweb.dk/ [R,NC,L]
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但它似乎没有用.
谁能帮我吗?
我有http://jsfiddle.net/ksCSn/1/
<input type="text" data-bind="
value: title,
hasfocus: edit,
onEnter: stopEdit" />
<p data-bind="text: title"></p>
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ko.bindingHandlers.onEnter = {
init: function(element, valueAccessor, _, viewModel) {
ko.utils.registerEventHandler(element, 'keydown', function(evt) {
if (evt.keyCode === 13)
valueAccessor().call(viewModel);
});
}
}
function ViewModel() {
this.title = ko.observable("default value");
this.edit = ko.observable(false);
this.stopEdit = function() {
this.edit(false);
// If the edit update is in a timeout, then it works
// var edit = this.edit;
// setTimeout(function() { edit(false); }, 0);
};
}
ko.applyBindings(new ViewModel()); …Run Code Online (Sandbox Code Playgroud) 关于如何使用&运算符来减少记忆,我感到非常困惑.
我能否回答以下问题?
clase C{
function B(&$a){
$this->a = &$a;
$this->a = $a;
//They are the same here created new variable $this->a??
// Or only $this->a = $a will create new variable?
}
}
$a = 1;
C = new C;
C->B($a)
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或者也许我的理解是完全错误的.....
这是在Java中: [1-57-9]
我今天遇到了这个正则表达式,我试图找出它究竟意味着什么.有人能帮我一下吗?
我在Magento中制作了我的模块,但它需要为所有产品分配额外的属性.我制作了安装脚本,但它不起作用:
<?php
$installer = $this;
$installer->startSetup();
$installer->run("
INSERT IGNORE INTO `{$installer->getTable('eav/attribute')}` (`attribute_id`, `entity_type_id`, `attribute_code`, `attribute_model`, `backend_model`, `backend_type`, `backend_table`, `frontend_model`, `frontend_input`, `frontend_label`, `frontend_class`, `source_model`, `is_required`, `is_user_defined`, `default_value`, `is_unique`, `note`) VALUES
SELECT 1 + coalesce((SELECT max(attribute_id) FROM `{$installer->getTable('eav/attribute')}`),0),4,`is_accepted`,NULL,NULL,`int`,NULL,NULL,`boolean`,`Accepted`,NULL,`eav/entity_attribute_source_boolean`,1,1,'0',0,NULL);
");
$installer->endSetup();
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Config.xml文件:
<adminhtml>
<acl>
<module_setup>
<setup>
<module>My_module</module>
</setup>
<connection>
<use>core_setup</use>
</connection>
</module_setup>
<module_write>
<connection>
<use>core_write</use>
</connection>
</module_write>
<module_read>
<connection>
<use>core_read</use>
</connection>
</module_read>
</resources>
</acl>
</adminhtml>
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这有什么不对?
我想在php中进行以下转换:
from: "0110001" to: "Tuesdays, Wednesdays, Sundays".
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这样做的加分点:
from: "0110001" to: "Tuesdays, Wednesdays and Sundays".
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输入为七个字符,每个字符代表一周中的某一天.
如果没有foreach循环,我怎么能这样做?我想使用array_walk或array_reduce.
工作解决方案,但有一个foreach:
<?php
function parseDays($str) {
$days = array("Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday");
$result = array();
foreach (str_split($str) as $k=>$v) {
if ($v == '1') {
$result[] = $days[$k];
}
}
return join(', ', $result);
}
echo parseDays("0110001");
Run Code Online (Sandbox Code Playgroud) 我知道这种接缝很容易,但我对这种特殊情况有疑问.我已经知道如何使用PHP将十进制转换为二进制,但我想显示完整的位序列,但令人惊讶的是,我不知道如何.
转换必须是这样的:
converting 127(decimal) to binary using PHP = 1111111. the bit sequence is 1-128 for every
octet(IP Address) so this must output = 01111111 even 128 is not used.
2nd Example:
1(decimal) to binary = 01. Want to display the full 1-128 binary sequence even if
128,64,32,16,8,4,2 is not used it must be like this 00000001 not 01.
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这是我的PHP代码:
<?php
$octet1 = $_POST["oct1"];
$octet2 = $_POST["oct2"];
$octet3 = $_POST["oct3"];
$octet4 = $_POST["oct4"];
echo decbin($octet1) ," ", decbin($octet2) ," ", …Run Code Online (Sandbox Code Playgroud) 以下示例定义了一个foo类,它构造一个bar类,并将其存储为属性$foo->bar.在bar类中,是否可以引用'false'父类,并使用它的函数?
class bar
{
public function test_false_parent()
{
//Is it possible to access foo->display() from here
{unknown code}::display();
}
}
class foo
{
public $bar;
public function __construct()
{
$this->bar = new bar;
}
public function display()
{
echo "in";
}
}
$foo = new foo;
$foo->bar->test_false_parent();
//Equivalent to $foo->display();
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public function add($data){
$sql = 'INSERT INTO ' . $this->name . '(fbid, userAccessToken, name, location, story, gender, email, email_md5, referrer, date, use, optin) VALUES (:fbid, :userAccessToken, :name, :location, :story, :gender, :email, :email_md5, :referrer, :date, :use, :optin)';
$mysqldate = date('Y-m-d G:i:s');
$result = $this->dbh->prepare($sql);
if($result->execute(array(
':fbid' => $data['fbid'],
':userAccessToken' => $data['userAccessToken'],
':name' => $data['name'],
':location' => $data['location'],
':story' => $data['story'],
':gender' => $data['gender'],
':email' => $data['email'],
':email_md5' => md5($data['email']),
':referrer' => $data['referrer'],
':date' => $mysqldate,
':use' => $data['use'],
':optin' => …Run Code Online (Sandbox Code Playgroud) 我希望获得有关当前编辑的提交的原始信息,git rebase -i但HEAD引用了不同的提交哈希.我怎样才能引用原始提交?
$ git rebase -i upstream
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(为提交选择"编辑")
[detached HEAD befa32f] Previous commit message
1 file changed, 121 insertions(+), 1 deletion(-)
rewrite README.md (100%)
Stopped at 9a1e25391e5a53965c80dc69e1285dba7c59f893... Current commit message
You can amend the commit now, with
git commit --amend
Once you are satisfied with your changes, run
git rebase --continue
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现在我想引用,9a1e25391e5a53965c80dc69e1285dba7c59f893但HEAD有不同的哈希和不同的属性,虽然它似乎是相同的提交:
$ cat .git/HEAD
1414539371fe6b122d5f326bc7b344eea761dc50
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这是从哪里来的,我如何引用原始提交?
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