Programmer Think

File contains Thinking: the function of PHP requires that the function must be called in memory, but the function is written in the corresponding PHP file one by one. Must the code in other files be copied to access it? Introduction: if the corresponding function in a file has been written, if you want to use it in other PHP files, yo ...

Foreword: mix one day and work hard one day, one day does not see any difference, three days do not see any change, seven days do not see any distance... But after one month you will see different topics, after three months you will see different atmosphere, after six months you will see different distances, after one year you will see ...

The life cycle of a thread refers to the whole process from creation to destruction. Generally, there are five kinds of thread life cycles:Initial stateOperational statusrunning state Dormant stateTermination statusTheir state transitions are shown in the following figure:Java thread lifecycleThe life cycle of Java thread is different from that ...

Data type in php: There are seven data types in php: //1.String string, a character wrapped in quotation marks, such as: $str = 'hello word'; //2.Integer integer, which can be positive or negative, has decimal, hexadecimal and octal, and cannot have decimal point, space, comma and other symbols, such as: $num = 123; ...

ekucms2.5 local file contains vulnerability - code audit 1, Foreword In order to learn the operation principle of Thinkphp framework and strengthen its own code audit ability, we specially looked for a CMS vulnerability article written by php on the Internet for reproduction and reverse code audit. Vulnerability reference articles are as foll ...

signal Introduction to signal and interrupt flow Signal refers to software interrupt signal, referred to as soft interrupt for short Interrupt source (interrupt signal generation position): Terminal device driver The interrupt signals ctrl+c, ctrl+z, ctrl generated by pressing the key on the terminal equipment+\Hardware excepti ...

preface This article uses PHP_SESSION_UPLOAD_PROGRESS summarizes file inclusion and deserialization. That is, the file inclusion and deserialization of PHP session Introduction to session Session is called "session control". The session object stores the attributes and configuration information required for a specific user ...

encapsulation Use modifiers to modify member properties and member methods, hide the internal details of the object to the greatest extent, and ensure the integrity and security of the object Object encloses variables and functions in curly braces That is, object = {member attribute + member method} = {variable + function} The emphasis is o ...

WHAT? Suppose you want to find a person whose name starts with K in the phone book, (who still uses the phone book now!) You can turn the page from the beginning until you enter the part starting with K. But you probably don't do that, but start in the middle, because you know the name starting with K is in the middle of the phone book. Suppo ...

Design pattern is the knowledge that every programmer must know and learn. Although it is not the foundation, you must understand it.   introduce You may encounter it in programming. Sometimes the state change of an object will affect many kinds of behavior. Typically, in the purchase process, after successful purchase, it will affect invent ...