Defined:The method that begins with the two line "__" in the PHP class is called the Magic method.Classification:For example: Construction method: __construct; destructor: __destruct; dynamic reload: __set (), __get (), __call (), __callstatic (),
Introduction to the magic constant _ METHOD _ in PHP, constant _ method _
_ METHOD _ is a new magic constant after PHP5, indicating the name of the quasi-grammar. A magic constant is a PHP predefined constant whose values can be changed, other
Magic Method in PHP
1. _ construct () and _ destruct ()
If an instance is called when it is created or destroyed, zero or multiple parameters can be passed.
class A { function A() { echo "build A"; } function __destruct() { echo "destroy A";
C # UTF8Encoding.UTF8.GetBytes (key), which method in PHP corresponds to?
How to write?
Reply to discussion (solution)
$s = ' Chinese abc '; $s = iconv (' GBK ', ' utf-8 ', $s); It is not necessary to Utf-8 Utf-8print_r (unpack (' c*
How to solve the Magic method in PHP?
1. Why call it a magic method? Does it feel like an irregular way?
2. Again by the Magic method name implies that these methods are irregular, try not to use? Not recommended for official use? Seems to mean
C # UTF8Encoding.UTF8.GetBytes (key), which method in PHP corresponds to? How to write?
C # UTF8Encoding.UTF8.GetBytes (key), which method in PHP corresponds to?
How to write?
------to solve the idea----------------------
$s = ' Chinese abc ';$s =
Constants in PHPDefine (' MYNUM ', 2000);echo MYNUM. ' ';if (!defined (' MYNUM ')) {Define (' MYNUM ', 4000);}Echo MYNUM;In-class declaration and useClass Testconst {Const COUNTRY = ' China '; Const cannot be public, static does not need $,
Constants in PHPDefine (' MYNUM ', 2000);echo MYNUM. ' ';if (!defined (' MYNUM ')) {Define (' MYNUM ', 4000);}Echo MYNUM;In-class declaration and useClass Testconst {Const COUNTRY = ' China '; Const cannot be public, static does not need $,
__set (): Assigning a parameter to an inaccessible property: ' Inaccessible property name ', ' inaccessible property value '__get (): Gets the value parameter of the Inaccessible property: ' Property name of this property '__unset (): Remove
In the project to extract the zip file with ziparchive, the first test environment in the Windows platform, test through, to Linux+nginx environment when the problem (Zip package has files and directories of altogether more than 300 files, most of
There are many magic methods in PHP that allow PHP scripts to be called automatically in certain situations. For example, __construct () Each instantiation of a class invokes the method for initialization. Here we describe the use of the __get ()
The code is as follows:12 use the PDO method to connect to the database! -Yao Yuan's blog 3$_server[' php_self ']); > ">4Server address: 5Server account: 6Server password: 789PHPTen if($_server[' Request_method ']== "POST") {//If determine if post
& Amp; nbsp; submitting to obtain form data is the most common operation in form applications, it is often necessary for the PHP background to obtain various data submitted on the front-end form page from the front-end page. There are two ways to
Static Generation Method in php
For example, the following functions are used: ob_start (), ob_get_contents (), and ob_end_clean ().
Knowledge point:
1. The ob_start function is generally used to enable caching. Note that no output, such as spaces
Asp can decrypt the ciphertext encrypted by using the built-in RSA method with the RSA that comes with PHP. this is now the case. here (Company A) there is something that was previously outsourced to Company B, ASP is used on the other side, and PHP
This article mainly introduces how to use the _ clone () method in PHP programming. the __clone () method is equivalent to a shortest copy, which is the basic knowledge in PHP beginners, you can refer to defining a _ clone () method in the object
Different from _ FUNCTION _ and _ METHOD _ in PHP use _ FUNCTION _ to return only the FUNCTION name use _ METHOD _ to return the class name and FUNCTION name? For example, we create a class ?? Classa {functionfa () {return _ METHOD __;} different
Different from _ FUNCTION _ and _ METHOD _ in PHP use _ FUNCTION _ to return only the FUNCTION name use _ METHOD _ to return the class name and FUNCTION name? For example, we create a class ?? Classa {functionfa () {PHP's _ FUNCTION _ and _ METHOD _
What is the difference between a static method in PHP and an instance method?
is not the difference between the use of methods, but there is no difference in performance
------Solution--------------------
It should be said that static methods are
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