This article mainly introduces the PHP delay static binding, the example analyzes the delay static binding principle and the realization skill, needs the friend to be possible to refer to under
This article illustrates the way PHP delays static binding. Share to everyone for your reference. The specific analysis is a
This blog is mainly to study Bo master All-Stack Engineering Lion "iOS Performance Tuning series: Analyze Static Analysis" after the practice, the recent company's project shelves did not do performance tuning, so in this record, in order to use later, in this thank Bo Master All-in-one project Lion wrote the wonderful blogAnalyze mainly analyzes the following four types of problems:1, logic error: access t
FindBugs is a program that finds bugs in Java programs that look for instances of bug patterns, which are examples of possible errors, and note that findbugs is checking Java bytecode, or *.class files. In fact, it is to look for code defects, many of the bad we write, can optimize the place, it can be checked out. For example, a database connection that is not closed, a lack of necessary null check, redundant null check, redundant if post condition, same conditional branch, duplicate code block
This article illustrates the way PHP delays static binding. Share to everyone for your reference. The specific analysis is as follows:
PHP deferred static binding: The self of the class, not the definition, but the run-time result of the calculation. First look at an example
Description
(1) The subclass instantiation Object $stu Invoke the Say method
conflictsNoconflict:function(deep) { if (window.$ = = = jQuery) { window.$ = _$; } if (deep window.jquery = = = jQuery) { window.jquery = _jquery; } return JQuery;}, The deep parameter is a Boolean value if True to release jquery as undefined in the previous example has been demonstratedwindow.$ = = = JQueryThis condition is guaranteed only when jquery still has the control of the time to release, there is no release and no meaning,
Source code: http://download.csdn.net/detail/asmcvc/4368397
Global String Conversion to local variable storage prevents software from being exposed to sensitive strings by static analysis, supports UNICODE character sets and multi-byte character sets, supports Chinese characters, and does not perform encryption.
Running effect:
Enter the global string to be converted, for example, C: \ file \ my file. txt
Tools used: Product--AnalyzeThe tool is simple to use and can perform memory analysis during code compilation to identify potential memory leaks in your code. Without the need to actually run.At the end of the analysis, you will get information similar to warring and error in issue navigator:Points of each memory leak are pointed out.whichDead StoreValue stored to ' xxxx ' is never readIndicates that a vari
dependencies, and each pom.xml is inherited from the base module, so we only need to be configured in the most basic Pom.xml file.The following is the specific configuration information.(3) After configuration, set findbugs:findbugs in the goals of Jenkins and select Publish findbugs analysis results in the build settings. For our project, we need to skip JUnit's tests so that there are more other configurations. Configuration needs to be configured
Java record-90-in-depth analysis of static proxy ModeThe proxy mode provides a proxy for other objects to control access to this object. In some cases, a customer does not want or cannot directly reference another object, and the agent can play a mediation role between the client and the target object. The proxy mode generally involves three roles: 1. abstract role: Declares the common interfaces of real ob
, both E8 FC FF FF FF -4. This is the next command address minus 4, and back here. In fact, the 4 here is a marker effect. So we can unlock this topic: static links .Under a static connection we compile the main.c with the command and get a target file as indicated:This is MAIN.O, the target file starts with address 0x00000000, but does not know where it is when it encounters the Add function, it makes a to
Static route addition analysis Router> enRouter # conf tRouter (config) # host AA (config) # A (config) # int e0 enter e0 port www.2cto.com A (config-if) # ip add 192.168.1.1 255.255.255.0 add IPA (config-if) of e0 port # no shut activate e0 port A (config-if) # exitA (config) # int s0 enter s0 port A (config-if) # ip add 192.168.2.1 255.255.255.255.0 add IPA (config-if) of s0 port # clock rate 56000 set cl
results are undefined.//the test result of [object Math] is Object///$.+^/'s test results are regexp.//Wed Jul 16:44:25 gmt+0800 (China Standard Time) test result is dateOK, the result is impeccable, the following is attached to the source code:function (obj) { returnnull ? String (obj): | | "Object"; },If it is undefined or null their data is tired type is itself, directly return the string form, if it is other data to execute the ToString method, the method is
; } } Catch(e) {//ie8,9 'll throw exceptions on certain host objects #9897 return false; } //OWN Properties is enumerated firstly //if last one was own, then all properties are own. varkey; for(Keyinchobj) {} returnKey = = = Undefined | |hasown.call (obj, key); },Isemptyobject MethodTests whether the object is an empty object (does not contain any properties).Example:// test whether an empty object // true// falseSOURCE Analysis:function (obj) {
source:Parsejson:function(data) {if(typeofData!== "string" | | !data) { return NULL; } //Make sure leading/trailing whitespace is removed (IE can ' t handle it)data =Jquery.trim (data); //attempt to parse using the native JSON parser first if(Window. JSON window. Json.parse) {returnwindow. Json.parse (data); } //Make sure the incoming data is actual JSON //Logic borrowed from Http://json.org/json2.js if(Rvalidchars.test (Data.replace (Rvalide
Scene:192.168. 4.1 Route:SIOCADDRT:Network is unreachableExplain:1, Ping the gateway first, but the pass of the ping does not mean that the next hop must be able to do the route.2. The unreachable indicated here should refer to the broadcast unreachable, not routing unreachable. Because routing the next hop is to give the IP packet the next step how to go, if you tell it a can not be directly broadcast to the address, he will go through the corresponding route to find this address, it is equal t
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