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PHP/MySQL三日通-第二天(四)
六、完整的程序 o#IWH;ck. /PkOF(( 在本课结束前,我们要把所有东西加入到一个程序中,使它具有增加、编辑修改、删除记录的功能。这是前面所有内容的一个延伸,也可以作为极好的复习方法。看看下面的程序。 ]o_E]5"jO bre6SP@ $#@60;html$#@62; VE/~tT; )sapUnqrlR $#@60;body$#@62; <zu)=W'R] gwYTOs^ $#@60;?php wD[qE ;<` $db = mysql_connect("localhost", "root"); (yz8}L3 ,@2d4eg4 mysql_select_db("mydb",$db); POQ1K
O 1x|/z,
if ($submit) { ~#[ ZuMO?
E9[8th,t ;"GI~p2~7 // 如果没有ID,则我们是在增加记录,否则我们是在修改记录 >l5JwwG U0S}O(Ptr if ($id) { fI0L\^b% [h2V9>4: $sql = "UPDATE employees SET first=$first,last=$last, 6_a.`ehtj< address=$address,position=$position WHERE id=$id"; ~
.Eln+N oDas~0<oh } else { BF6H_g (.3L'+F $sql = "INSERT INTO employees (first,last,address,position)
XC{(O:EG VALUES ($first,$last,$address,$position)"; +NEP*mk P^LOrLmo8 } P6 G/J- rQ$A|GJ L !ZV#~t:) // 向数据库发出SQL命令 Z_Ma|V?6 0?t!tugG $result = mysql_query($sql); "$8<\k$LGT bvR*sT#rg @kwD$%*0 echo "记录修改成功!$#@60;p$#@62;"; (A&@
< E(U}$Zey } elseif ($delete) { l7J_s?!j )x|BY> |I+E`,n"b // 删除一条记录 gkk <-j' 5\Y/s o= $sql = "DELETE FROM employees WHERE id=$id"; =3SL&
:8 khv! \^&DD $result = mysql_query($sql); }\DQxHG ?s"v0cg+ S s`0;D1 echo "记录删除成功!$#@60;p$#@62;"; 47K5[R \]OD pi
2 } else {
B?%D \+AH>I;vO n
~3c<{coZ // 如果我们还没有按submit按钮,那么执行下面这部分程序 z:G9Uu3H( 6HqK%( if (!$id) { QF>[cdl?8 >SGSn/AJi pq&c]8H // 如果不是修改状态,则显示员工列表 7=AKQ7BB>b ,`7GI*Vq $result = mysql_query("SELECT * FROM employees",$db); 8Z!ea3kAT mDmWTq\ while ($myrow = mysql_fetch_array($result)) { =%
JDo I^|bQ3sor printf("$#@60;a f=\"%s?id=%s\"$#@62;%s %s$#@60;/a$#@62; \n", ;i#gk%-
2 $PATH_INFO, $myrow["id"], $myrow["first"], $myrow["last"]); ^9RBG#ud z} \9/` printf("$#@60;a href=\"%s?id=%s&delete=yes\"$#@62;(DELETE)$#@60;/a$#@62;$#@60; By_Ui6:D br$#@62;", $PATH_INFO, $myrow["id"]); Jr9}
'l8 T7Ac4LA } mN*P2* mC7Y * } )pLq^j Vel;t<1 ?$#@62; VfwD{+5 Uk2q,2 $#@60;P$#@62; ezvaAhd{ GXRjR\Ch $#@60;a href="$#@60;?php echo $PATH_INFO?$#@62;"$#@62;ADD A RECORD$#@60;/a$#@62; bH{aI:9Fb hrD6r=JT<~ $#@60;P$#@62; ka3Z5 TfVD'HAN;l $#@60;form method="post" action="$#@60;?php echo $PATH_INFO?$#@62;"$#@62; h;KK6*Z*$E NLl~/smMS $#@60;?php uLM_KZ eNFUjDm if ($id) { 72zuI4& eeZysCy+DY Ol9fwd // 我们是在编辑修改状态,因些选择一条记录 PuJ{!S
\T7 B,833Azi $sql = "SELECT * FROM employees WHERE id=$id"; zYdtQjv \2xBOe-a] $result = mysql_query($sql); rb'Gve W[ Ib8i#D V $myrow = mysql_fetch_array($result); !nq\x8nU N-9gfG $id = $myrow["id"]; b,R'T+4[ Q;O)>K $first = $myrow["first"]; QCfpDE} 7$W;4!BN* $last = $myrow["last"]; Zw][c7% u^zitW!X$ $address = $myrow["address"]; JlQT5k wrYQ=u#Z $position = $myrow["position"]; {IHK<aW ;nKH
m
SM+fG: 4d // 显示id,供用户编辑修改 4F,Ql"ae( L
?27q ?$#@62; ]es
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<=% $#@60;input type=hidden name="id" value="$#@60;?php echo $id ?$#@62;"$#@62; DsJn#>?Kh Q!Ow{(| $#@60;?php Va
Yu% rk,1am:cg } A1
QI4.K j8Q5d` ?$#@62; )ko{S[
gG :~3{oZGX& M"5!s, 名:$#@60;input type="Text" name="first" value="$#@60;?php echo $first ?$#@62;"$#@62;$#@60;br$#@62; =ym [TK? P0 I\rZk9F 姓:$#@60;input type="Text" name="last" value="$#@60;?php echo $last ?$#@62;"$#@62;$#@60;br$#@62; 9;]wF8h MkW1FjdP [Ba2b: l6v 住址:$#@60;input type="Text" name="address" value="$#@60;?php echo $address ?$#@62;"$#@62;$#@60;br$#@62; =Etwa K@jSr*\' df>kEvU5.^ 职位:$#@60;input type="Text" name="position" value="$#@60;?php echo $position ?$#@62;"$#@62;$#@60;br$#@62; 3 "l
F !jAWNK6 i9;27tT~< $#@60;input type="Submit" name="submit" value="输入信息"$#@62; tCbr<Ug *"ykTqa
$#@60;/form$#@62; chO'Q+pw 4\1wyN /}M $#@60;?php AJ\VY;m7F i<#h]o
C} } .>kccLr:z m)@Q_{=6M ?$#@62; "J P{Q TwM1M[
"3 $#@60;/body$#@62; tg7C;rJ JlC<MQ? $#@60;`/html$#@62; &;ZC< | |