In the smarty template file tpl, what is the meaning of "| h" after the variable name when writing and outputting? for example: lt; p nbsp; gt; lt; input nbsp; typetext nbsp; disableddisabled nbsp; namestate nbsp; value lt ;! -- {$ ArrForm. state | h} -- gt what is
See some trait introduction, also see in the framework. But feel trait do things, with interface can also do?
Personally feel that each trait implementation of the functions are very concentrated, but also very light, this is very good, but some of the class may have to use a few trait at the same time, and if you inherit the class at the same time, the implementation of the interface, and it contains coverage, it
I'm looking at the startup process of Yii2, where application's parent constructor is written like this;
I want to ask the last sentence component::__construct ($config) What is the special meaning of the call here?
public function __construct($config = []) { Yii::$app = $this; $this->setInstance(
Ask the Cainiao about the meaning of the php template tag nbsp; lt; div nbsp; id = "tab_c6" nbsp; class = "tab_c nbsp; pd10 nbsp; cl " gt; nbsp; nb Cainiao ask for the meaning of the php template label
Excuse me
What does the intermediate template tag () mean? I only know what the passed parameters mean, but
label can be better to describe it, what is the label. add: web crawler, SEO and other concepts Seo:search engine optimization--search engine optimization, which is a search engine to take advantage of the rules, the adoption of optimization strategies or procedures to improve the site in search results rankings.Network crawler: Also known as network spider, Net
One, the normal for loop we have been exposed to a lot, as below, we all understand int [] tt = {1,2,3,4,5,6 }; for (int16; i++) { Console.WriteLine (tt[i]); } Two, but for (;;) What does it actually mean?Meaning: For parentheses, the content before the first semicolon is executed before the first lo
A very small problem has been dealt with today.
The requirement is that, from Monday to Sunday, you can only see data from Monday to Sunday.
Here, you can query the range directly from the database based on the Date field.
But you need PHP to generate a start date and an end date.
In the beginning, I dealt with it directly.
Copy the Code code as follows:
$start _date = Date (' y-m-d ', Strtotime ("-2 week Monday"));$end _date = Date (' y-m-d ', Strto
When installing the FileInfo extension under Linux, what is the meaning of the following error message (hundred spent, can not find the answer)
[ROOT@AY130324201613791BCA fileinfo-1.0.4]# pecl Install FileinfoWARNING: "Pear/fileinfo" is deprecated in favor of "channel://php-src/ext/fileinfo/in PHP sources"Warning:chan
. Five hundred years later, he was originally someone else's man, zhou xingchi's proposal to draw a heart on the dual-knife Turkey is not willing to die. It is an irony of a woman. For a woman, no matter how loyal she is, how responsible she is, how smart she is, multi-energ
What is the meaning of $this in thinkphp?
Reply content:
What is the meaning of $this in thinkphp?
$this is the current object reference, it's PHP, it doesn't matter with thinkp
constructor A to find, finally found A.prototype.whatever, so it returned to B.prototype whatever, and then returned to B.whateverThis realizes the inheritance relationship of the prototype chain.B.whatever==b.prototype.whatever==a.prototype.whateverThe purpose of this is that B completely inherits the thing of a, as long as there is a prototype, B's instance (generated by new B) can be obtained.However, m
In C #?? What's the meaning of the distinction?1. Nullable type modifier (? ):A reference type can use a null reference to represent a value that does not exist, and a value type usually cannot be represented as empty. For example: string str=null; is correct, int i=null; the compiler will error. To make a value type nullable, you can use a nullable type, which is
callback function to see if the data is ready (equals 4).If you are not ready, check again at intervals. Because the data is not finished downloading, we cannot use its properties and methods. If you are ready, proceed to execution; Lreadystate PropertyThe ReadyState property indicates several states in which the XMLHttpRequest object is in the process of sendin
for these things, the gods are already in the chest, but there are some just contact Linux , Unix people like these systems may not be familiar with these variables, so I'll share them with you today. What problem can add QQ Group, we discuss together -- Ops tribe:348384728To make it easier for everyone to understand, write a simple script that will explain the meaning of each variable later.# Touch Test# V
Ask the meaning of a wordpress statement $ templates nbsp; array (); if nbsp; ( nbsp ;! Nbsp; $ name nbsp;) $ templates [] nbsp; header-{$ name }. php; $ templates [] nbsp; header. php ask the meaning of a wordpress statement
$ Templates = array ();
If (''! ==$ Name)
$ Templates [] = "header-{$ name}. php ";
$ Templates [] = 'header. php ';
This program judges whether $ name
assignment with will copy this instance (such as an object) and $this will act on the copy, which is not always the desired result. Because of problems with performance and memory consumption, usually you just want to work on one instance.Although you can use the @ operator to close any error messages in the constructor, such as @new, this does not work with the new statement. This is a limitation of the
Ask the Cainiao about the meaning of the php template tag nbsp; lt; div nbsp; gt; nbsp; nbsp; lt ;! -- {Tag (tablelink amp; conditionstat)
Excuse me
What does the intermediate template tag () mean? I only know what the passed parameters mean, but I don't know what the tag ()
Ask the Cainiao about the meaning of the php template tag nbsp; lt; div nbsp; gt; nbsp; nbsp; lt ;! -- {Tag (tablelink amp; conditionstatu)
Excuse me
What does the intermediate template tag () mean? I only know what the passed parameters mean, but I don't know what the tag ()
trigger promiscuous mode does not make any sense.Whether the distinction is a standard or a mixed mode, it is important to determine the page resolution using the "Standard box box model" or the "traditional box model".box models in Mozilla Firefox and IEIn its interpretation, due to inconsistencies resulting in a difference of 2px width, its solution:div{Margin:30px!important;margin:28px;}Note that the or
Tags: list class CSS position variable script does not have different linu in Linux$# is the number of arguments passed to the script. $ is the name of the script itself. $ is the first parameter passed to the shell script, and the second argument that is passed to the shell script
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