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At the beginning of the year, I had been working on the migration of a website MSSQL2000-> MySQL5. Because different program systems were used, the main problem was data migration. Because the structure of the two System databases is very different,

Some of these PHP concepts are difficult to understand at the beginning. I listed them all in the hope that they could help some people with less thorns on the way forward. 1. variable variables (variable) Variable_variables.php Copy codeThe Code

Function prototype: array split (string $ pattern, string $ string [, int $ limit]) The PHP split () function returns an array of strings. Each unit is $ string. The regular expression $ pattern is used as the substring separated by the boundary.

Linux system time and hardware time settings, linux hardware1. Introduction In Linux, there are two types of Clock: hardware clock and system clock. The hardware clock refers to the clock device on the motherboard, that is, the clock that can

For beginners, understanding the usage of common functions in PHP is the basis for their continued learning. Today we will give you a detailed introduction.DescriptionArray split (string $ pattern, string $ string [, int $ limit]) PromptThe

There are two sets of regular expression function libraries in PHP. The two functions are similar, but the execution efficiency is slightly different: One set is provided by the PCRE (Perl Compatible Regular Expression) Library. Functions with the

Decompress the zip file using php. The code is as follows: Class zip { Var $ datasec, $ ctrl_dir = array (); Var $ eof_ctrl_dir = "\ x50 \ x4b \ x05 \ x06 \ x00 \ x00 \ x00 \ x00 "; Var $ old_offset = 0; var $ dirs = Array ("."); Function get_List (

Regular expression: a syntax rule used to describe character arrangement and matching modes. It is mainly used for string mode segmentation, matching, search and replacement operations. Regular expression Regular expression There are two sets of

Normalization date format 01normdata. sh02 #! /Bin/sh0304 # normdata. sh -- normalize the month to three letters on the date, and uppercase the first letter. 05 # useful functions for the 7th script valid-date. 0607 monthnoToName () 08 {09 #

Import reDatepat = Re.compile (R ' (\d+)/(\d+)/(\d+) ')m = Datepat.match (' 11/27/2012 ')Print (m)Print (M.group (0))Print (M.group (1))Print (M.group (2))Print (M.group (3))Print (M.groups ())Month, day, year = M.groups ()Text = ' Today is 11/27/201

The behavior of the object:1, master the Declaration and invocation of the class method;2, understand the method call stack;1), the invocation of the method;2), select the statement;3), cyclic statements;3, understand the method of overloading;4,

The book has used cliffs to describe software boundaries: if you can walk confidently and safely on the edge of a cliff without falling down, the flat will almost never be a cinch. Boundary conditions are special cases, because programming is

Php mainly uses the php time function mktime to obtain the start timestamp and end timestamp of today, yesterday, last week, and this month. The following describes how to use mktime to obtain the start and end timestamps of today, yesterday, last

This article describes how to use the explode function in php to split strings into arrays. For more information, see splitting strings. // Use The explode function to split a string into an array The code is as follows: $ Source = "hello1,

!--? php function getweekdate ($year, $weeknum) { $firstdayofyear =mktime (0,0,0,1,1, $year); $firstweekday =date (' N ', $firstdayofyear); $firstweenum =date (' W ', $firstdayofyear); if

Copy CodeThe code is as follows: Class zip{var $datasec, $ctrl _dir = Array ();var $eof _ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";var $old _offset = 0; var $dirs = Array (".");function get_list ($zip _name){$zip = @fopen ($zip _name, ' RB

Regular expressions There are two sets of regular expression libraries in PHP, which are functionally similar, but with slightly different execution efficiency: The set is provided by the Pcre (Perl Compatible Regular Expression) library. A function

How does php compress all files in a folder into a zip file? How does php compress all files in a folder into a zip file? For example, my localhosthas a testfolder with many files and folders in it. how can I pack all test.zip files into test.zip

First, preface The reason for doing this is because the two functions are very similar in that they are converting strings into groups. Second, explode As can be seen from the following example, the resulting array is in the corresponding

Decompress the zip file using php. The code is as follows: Class zip{Var $ datasec, $ ctrl_dir = array ();Var $ eof_ctrl_dir = "\ x50 \ x4b \ x05 \ x06 \ x00 \ x00 \ x00 \ x00 ";Var $ old_offset = 0; var $ dirs = Array (".");Function get_List ($