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When you see this name, it gives you a very high-end feeling. Yes, magic methods are indeed advanced. So, what is a magic method? In PHP, methods starting with two underscores are called "Magic methods". For example, the __construct(), __destruct (), __clone() mentioned before, and __call(),,__get(), __set(),__sleep(), __wakeup(), __toString(), __autoload(), etc., They are all magic methods. If you want PHP to call these magic methods, they must first be defined in the class, otherwise PHP will not execute uncreated magic methods. Note: The magic method is set in PHP, so you cannot create it yourself. You can only use what already exists in PHP, otherwise an error will be reported. Below we will introduce the commonly used magic methods among many magic methods. The function of __get() is: __get(): When reading the value of an inaccessible attribute (private, protected, does not exist), p
1. Magic method __get() instance Detailed explanation (php advanced object-oriented tutorial 2)
##Introduction: When you see this name, do you feel like it? Very high-end feeling. Yes, magic methods are indeed advanced. So, what is a magic method? In PHP, methods starting with two underscores are called "Magic methods". For example, the __construct(), __destruct (), __clone() mentioned before, and __call(),,__get(), __set(),__sleep(), __wakeup(), __toString(), __autoload(), etc., They are all magic methods.
2. PHP object-oriented - detailed code explanation of object serialization serialize(), __sleep(), __wakeup()
#Introduction: Sometimes it is necessary to transmit an object over the network. In order to facilitate transmission, the entire object can be converted into a binary string, and when it reaches the other end , and then restored to the original object. This process is called serialization (also called serialization). Just like we now want to transport a car to the United States by ship, because the car is relatively large, we can The car is disassembled into small parts, and then we ship these parts to the United States on wheels, and then assemble the parts back into the car. There are two situations where we must serialize the object. The first situation is to serialize an object.
3. Detailed explanation of thread yield() and thread sleep() in Java )Method
Introduction: Thread concession in Java will make the thread give up priority, while hibernation will Will cause the thread to enter a blocked state waiting to be awakened. Here we compare the wait() method of thread waiting to explain in detail the thread yield() and thread sleep sleep() methods in Java
4. PHP sleep() function, usleep() function
Introduction: This article It mainly introduces the PHP sleep() function and usleep() function. Friends who need it can refer to
#Introduction: Threads have five states: new, ready, running, blocked, and dead. There are three situations of blocking: Synchronous blocking refers to the state of competing locks. When a thread requests a lock, it will enter this state. Once the lock is successfully obtained, it returns to the running state; Waiting blocking refers to the state of waiting for notification from other threads. After the thread obtains the conditional lock , calling "wait" will enter this state. Once other threads send notifications, the thread will enter the synchronous blocking state and compete with the lock again; and other blocking refers to calling time.sleep(), anotherthread.join(...
Introduction: __construct(), __destruct(), __call(), __callStatic(), __get(), __set(), __isset(), __unset(), __sleep(), __wakeup(), __toString( ), __invoke(), __set_state() and __
Introduction: Custom serialization interface. Classes implementing this interface will no longer support __sleep() and __wakeup(). Whenever an instance needs to be serialized, the serialize method will be called. It will not call __destruct() or have other effects unless this method is called programmatically. When data is deserialized, the class will be aware and the appropriate unserialize() method will be called instead of calling __construct(). If you need to execute the standard constructor, you should handle it in this method.
##Introduction: In daily development, most novices are confused about how to remember so many PHP built-in functions. In fact, as long as you know that this thing exists, you will naturally remember it when you use it a lot. , the following is a collection of the most commonly used functions when developing PHP, I hope it will be helpful to you. Some common functions of PHP are recorded. The usleep() function delays code execution for several microseconds. The unpack() function unpacks data from a binary string. The uniqid() function generates a unique ID based on the current time in microseconds. time_s...
9. Common PHP functions [Part 1]
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Am I the only one who thinks these two paragraphs are contradictory?
Introduction: Note: max_execution_time only affects the running time of the script itself. Any other time spent outside the running of the script, such as calls to the system using the function system(), use of the sleep() function, database queries, file uploads, etc., are not included in calculating the maximum time for the script to run...【Related Q&A recommendations】:
Will PHP sleep() take up a lot of resources? How is C++ compatible with Linux and window? php - Am I the only one who thinks these two paragraphs are contradictory? What is the mechanism for JavaScript to call functions to update the DOM?java - The main thread exits before the child thread ends
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