The Static keyword in PHP and the difference from the Self keyword _php instance

Overview Learning design patterns, before an article on the single case mode of the article, reread this article, found that the static keyword master is not very secure, to review. Static keyword The static keyword is described in the PHP manual

In PHP, the error log is saved in the System log (Windows system) _php instance

"Log errors to the system log" In php.ini, set Error_log to: Copy Code code as follows: Error_log = syslog or use the Ini_set () function setting at run time. "Example 1" To view the error log (Windows

PHP 5.3.1 installation package VC9 VC6 Different versions of what the difference is _php tips

Recently in the PHP official online see a new version of the PHP download, so go up to find for the version of Windows, but a look, a total of four versions, VC9 x86 Non thread safe, VC9 x86 thread safe, VC6 x86 thread Safe, VC6 x86 Thread safe,

PHP does not have to recursively traverse all the files in the directory code _php instance

Implementation code: /** * PHP non-recursive implementation query all files in this directory * @param unknown $dir * @return multitype:|multitype:string * * function Scanfiles ($dir) { if (! Is_dir ($dir)) return array ();

A brief talk on _php instance of PHP receiving post data mode

Typically, users use a browser Web page form to submit data to the server post, and we use PHP to receive data from the user post to the server and to handle it appropriately. But in some cases, if the user uses the client software to send post data

The difference between the value assignment of PHP and the value of reference _php skill

Transfer Value Assignment: When you assign the value of an expression to a variable, the value of the entire original expression is assigned to the target variable. This means that, for example, when a variable's value is assigned to another

PHP command line script receives incoming parameters in three ways _php instance

PHP is usually requested by HTTP, you can use Get or post methods to receive parameters, and sometimes need to be under the shell command PHP as a script execution, such as timed tasks. This involves the question of how to pass a reference to PHP

PHP filter HTML tags, attributes, and other regular expression rollup _php instance

$str =preg_replace ("/\s+/", "", $str); Filter Excess return $str =preg_replace ("//si", "", $str); Note $str =preg_replace ("//si "," ", $str); Filter doctype $str =preg_replace ("//si "," ", $str); Filter HTML tags $str =preg_replace ("//si "," ",

PHP to obtain the specified (guest) IP all information (address, postal code, country, latitude and longitude, etc.) method _php Tips

This article describes the method of obtaining all the information (address, ZIP code, country, latitude, etc.) for the specified (guest) IP in PHP. Share to everyone for your reference. Specifically as follows: Calling the method is very simple.

Common PHP Five Design patterns summary of _php tips

dsn

design Pattern A book introduces design patterns into the software community, the authors of which are Erich Gamma, Richard Helm, Ralph Johnson and John vlissides (commonly known as "gang"). The core concept behind the design pattern described is

PHP file_put_contents () function (integrated fopen, Fwrite, fclose) _php tips

Command: File_put_contents (); Command resolution: File_put_contents (PHP 5) File_put_contents-Writes a string to a file Description int file_put_contents (string filename, string data [, int flags [, resource context]]) and call fopen (), fwrite ()

PHP gets the start and end times of each week and month between the specified dates _php instance

Calculates the start and end times of each week between these two dates, and the start and end times of each month, based on the specified two dates Log Format Class Date.class.php Copy Code code as follows: Class datefmt{ function

Implementation of delay loading by virtual Proxy in PHP code _php skills

This is from Martin God's "Enterprise Application architecture Model" learned that the auxiliary PHP Dynamic language features, can be much easier than Java implementation of lazy Load (lazyload). The basic principle is to use a virtual proxy as a

PHP dirname (__file__) Gets the absolute path to the current file _php tips

For example, the current file is placed under (d:\www\) and the filename is test.php. The code for the test is as follows: Copy Code code as follows: Echo __file__; Get the absolute address of the current file, result: D:\www\test.php

PHP File Upload class code _php tips

Copy Code code as follows: /** * File Upload Class */ Class UploadFile { Public $max _size = ' 1000000 ';//set Upload file size Public $file _name = ' date ';//The renaming method is named in time, others with the given name Public

PHP Find a method for 10 digits without repeating the maximum and minimum in a numeric array _php tips

This example describes a method for PHP to find the maximum and minimum number of 10 digits in a numeric array. Share to everyone for your reference. Specifically as follows: 1. PHP code is as follows: An array of randomly generated 10,000

PHP uses GD to create a way to keep the aspect ratio thumbnail _php tips

The example in this article describes how PHP uses GD to create a way to maintain a wide-ratio thumbnail. Share to everyone for your reference. as follows: /** * Create a thumbnail image from $inputFileName no taller or wider than *

PHP _php tips by modifying the header force image download method

The example in this article describes the way that PHP modifies the header force picture download. Share to everyone for your reference. The implementation methods are as follows: function DownloadFile ($file) { $file _name = $file; $mime = '

PHP implementation is used to verify all types of credit card class _php skills

This example describes a PHP implementation that validates all types of credit card classes. Share to everyone for your reference. Specifically as follows: This PHP class is complete, can be used to verify a variety of credit cards, credit card

PHP uses simplexml_load_file to load XML files and display XML methods _php tips

This example describes how PHP uses simplexml_load_file to load XML files and display XML. Share to everyone for your reference. The implementation methods are as follows: asxml ()); > The contents of the Sample.xml file are as follows

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