many to many php

first about the relationship between tables and tables 1. A One-to-many2. A One-to-many3. Multiple to One4. Multi-pair multi- parent table and child table 1. "One" is the parent table2. One side of "many" is how a child table handles a one-to-many

IE has been using irefoxPHP in the drama Xinjiang. why are there cookies? The Cookie has been rejected? Setcookie (username, username, time () + 1000, php100); why? Setcookie? Br/> setcookie ("username", "username", time () + 1000, "/php100 /"); Why?

In php, why are there too many other problems? DOCTYPEhtmlPUBLIC-W3CDTDXHTML1.0TransitionalENwww.w3.orgTRxhtml1DTDxhtml1-transitional.dtdhtmlxmlnswww.w3.org1999xhtmlheadmetahttp-equivCon TV series $ Sort_file = array ();$ Filefj = array

　　　　/* *function: Displays a time equivalent to how many seconds before the current time, how many minutes ago, how many hours ago *timeint:unix time timestamp *format: Time display format */ Public Function TimeFormat ($timeInt, $format = ' y-m-d h:

The first method, implemented using the PHP class library /** * Function: Calculates how many years, how many months, and how many days are two dates * param string $date 1[format: 2011-11-5] * param string $date 2[format such as: 2012-12-01] *

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PHPsocket too many? Too many tasks? ++ 」 "? Inner? Too many errors c ++ has been made before h has been made? Too many tasks? Why is there a problem? Why are there too many other users? Why is the ultimate version of zookeeper? Why? Why are there

How many PHP scripts have been written? _ SERVER В ㄥ? $ _ SERVER ﹁ В? /P> Listen to 1 speaker? _ SESSION ['php _ SELF '] -- when the peak traffic is too large, too many other requests? Why? _ SERVER ['Se PHP has already been used before? _ SERVER ﹁

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As a developer, you'll often see news on the web that doesn't use XX. And as the most popular open source server-side scripting language, PHP is also difficult to escape such a fate. As everyone knows, gold no can't pure, no perfect, and then