Problems related to storage of two-dimensional arrays to databases

I want to save the value of a two-dimensional array to the mysql database. for example, field: nameagesex array: array (sh, 20, male), array (se, 30, female);, serialize () serialization. & nb two-dimensional array storage to database problems I

In mysql, how does one judge datetime as null?

In mysql, how does one determine that the time field datetime is null? in mysql, the initial value of the time field datetime is 0000-00-. how does one determine that it is null? if it is null, it is updated to the system time; otherwise, it is not

Solution for PHP to read data from the specified row of TXT

PHP reads the data of the specified row of TXT. now there is a large TXT, which exceeds the memory size (assuming that it is). to replace part of the text, if it is directly read, it will not work and the memory is not enough. I thought of a way to

Build a Dream Web site on XP

The PHPAPACHEMYSQL website built in XP has been downloaded. I don't know how to configure the environment Baidu PHP. The latest version is 5.4.3. However, after downloading and unzipping, I don't know how to install the configuration, we will

Loop $ _ SERVER, a lot of variables are undefined. Solution

Loop $ _ SERVER, a lot of variables are undefined. Foreach ($ _ SERVERas $ I) {echo $ _ SERVER [$ I]. '& lt; br/& gt;';} added error_reporting (E_ALL & amp ;~ E_NOTICE); it does not explicitly loop out $ _ SERVER, a lot of variables are undefined.

How to use odbc_fetch_array ()

How does odbc_fetch_array () use PHPcodewhile ($ row = odbc_fetch_array ($ result) {} to obtain the result set? isn't it an array? why echo $ row [0]; do not display anything. only field names are required for display. how to use echo $ row [Ti odbc_

, Plagued me for a long time paging problems

For help, the paging problem that has plagued me for a long time is that the pagination value is displayed normally and the paging display is normal, but once assigned a value (I want someone to enter a date, can automatically go to the information

How to handle basic functions

Functionjieri ($ jieri) {$ SQL = & quot; SELECTgoods_id, goods_thumb, goods_name, shop_price, market_priceFROMhc_goodsWH Function jieri ($ jieri ){ $ SQL = "SELECT goods_id, goods_thumb, goods_name, shop_price, market_price FROM hc_goods WHERE goods_

Two Parseerror: syntaxerror, unexpectedT_VARIABLE exception

Two Parseerror: syntaxerror, unexpectedT_VARIABLE error codes: 1. online3 & lt ;? Php // Usage: include & quot; Zip. class. php & quot; $ z = newPHPZip (); // create two Parse errors: syntax error, unexpected T_VARIABLE error The code is as follows:

Why is mySql sometimes faster or slower to query?

Why is mySql sometimes slow when querying ??? In this way, a shopping site collects tens of millions of data records in dx_gd_goods and creates indexes by category. after the where root category ID and query, at the beginning, it was a little slow,

The PHP file is extracted from the smarty template.

The php file introduced in the smarty template contains a. php page corresponding to a. tpl. there is a block in a. tpl that I want to make into cache, and other dynamics .. How to implement it? Can I extract the part into B. php corresponding to B.

A 2-point search program written in PHP code

A binary search program written in PHP code & lt ;? Php & nbsp; functionBinSearch ($ a, $ low, $ heigh, $ key) {if ($ low & gt; $ heigh) {returnnull ;} else {$ mid = (int) ($ low + $ he a binary lookup program written in PHP code Function BinSearch

Questions about permissions and whether to log on

For permissions, you can also determine whether to log on to login. php logon page-& gt; loginaction. php logon processing page (jump to the input page after successful logon)-& gt; write. php records the information here (here, you can jump to the

A related question about php loop

One problem with php loops is that an Array & nbsp; PHPcodeArray ([0] = & gt; Array ([id] = & gt; 1 [name] = & gt ;~ Core [titl php loop problem There is such an array PHP code Array ([0] => Array ([id] => 1 [name] => ~ Core [title] =>

Questions about zendstudio server creation?

Zendstudio server creation question ???? Zendstudio version 9.03: Select a file and create another instance. select a server and click "do not see servers in the list" in the upper-right corner as prompted? Click here, but if you select each server,

What should I do with code like qq paging?

The code similar to the qq paging is a page that shows all the infinitely downward display like QQ. it uses JS to determine whether the screen is accurate and load the next page. Qq paging code Is a page that shows all the items like QQ Infinitely

Use of Euler loop & http://acm.hdu.edu.cn/showproblem.php? Pid = 1, 3018

Application of Euler loop & amp; http://acm.hdu.edu.cn/showproblem.php? Pid = 3018 question: I will give you a picture and ask you how many pictures can be drawn, except for the isolated points # include & lt; cstdio & gt; # include Euler Loop

After svn is delivered, the file format is changed to pc

After svn is submitted, the file format is changed to pc? For program submission, the file format must be changed to unix. I changed Editplus to unix, but svn could not get it and could not submit it. I always prompted that no changes were made,

When a user logs on, how can he determine whether the user has logged on elsewhere?

When a user logs on, how does one determine whether the user has logged on elsewhere? When a user logs on, how does one determine whether the account has logged on elsewhere ?, Main ideas: 1. log on to the user's SessionID. verify that the user

PHP uploads the hidden path of a file. if you have uploaded a file securely, check it out.

The hidden path of the PHP file to be downloaded has been used for file download security! Recently, in file resource management, the solution used to hide the file path during download is simply to configure apache for the directory where the files

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