php中一些常用的语句收集

1：连接数据库：

<?php

$conn = mysql_connect("localhost","root","www.xunjobs.com") or die("数据库连接失败".mysql_error());

mysql_select_db("db_pursey",$conn) or die("数据库访问失败".mysql_error());

mysql_query("set names gb2312");

?>

2：插入数据：

<?php

include("conn/conn.php");

$type=$_POST[type];

$title=$_POST[title];

$content=$_POST[content];

$linkman=$_POST[linkman];

$tel=$_POST[tel];

//$edate=date("Y-m-d h:i:s");获得系统日期

$edate=date("Y-m-d H:i:s");

$sql=mysql_query("insert into tb_info(type,title,content,linkman,tel,checkstate,edate) values('$type','$title','$content','$linkman','$tel',0,'$edate')");

if($sql){

//php中输出<script>语句的方法

echo "<script>alert('恭喜您，信息发布成功！');window.location.href='release.php';</script>";

}else{

echo "<script>alert('对不起，信息发布失败！');history.back();</script>";

}

?>

3：查询数据

<?php

include("conn/conn.php");

$type=$_POST[type];

$content=$_POST[content];

$sql1=mysql_query("select * from tb_leaguerinfo where checkstate=1 and type='$type' and (content like'%$content%' or title like'%$content%' or linkman like'%$content%' or tel like'%$content%')");

$info1=mysql_fetch_array($sql1);

$sql=mysql_query("select * from tb_info where checkstate=1 and type='$type' and (content like'%$content%' or title like'%$content%' or linkman like'%$content%' or tel like'%$content%')");

$info=mysql_fetch_array($sql);

?>

<?php

if($info1){

do{

?>

<table width="540" border="0" cellspacing="0" cellpadding="0">

<tr>

<td height="26">『<?php echo str_ireplace($content,"<font color='#FF0000'>".$content."</font>",$info1[type]);?>』 <?php echo str_ireplace($content,"<font color='#FF0000'>".$content."</font>",$info1[title]);?>  <?php echo str_ireplace($content,"<font
color='#FF0000'>".$content."</font>",$info1[edate]);?></td>

</tr>

<tr>

<td height="26">    <?php echo str_ireplace($content,"<font color='#FF0000'>".$content."</font>",$info1[content]);?></td>

</tr>

<tr>

<td height="26"> 联系人：<?php echo str_ireplace($content,"<font color='#FF0000'>".$content."</font>",$info1[linkman]);?>   联系电话：<?php echo str_ireplace($content,"<font color='#FF0000'>".$content."</font>",$info1[tel]);?></td>

</tr>

<tr>

<td height="3" background="Images/line1.gif"></td>

</tr>

</table>

<?php

}while($info1=mysql_fetch_array($sql1));

?>

</td>

</tr>

<tr>

<td height="140" align="center" valign="top"> <br>

<?php

if($info){

do{

?>

<table width="540" border="0" cellspacing="0" cellpadding="0">

<tr>

<td height="26">『<?php echo str_ireplace($content,"<font color='#FF0000'>".$content."</font>",$info[type]);?>』 <?php echo str_ireplace($content,"<font color='#FF0000'>".$content."</font>",$info[title]);?>  <?php echo str_ireplace($content,"<font
color='#FF0000'>".$content."</font>",$info[edate]);?></td>

</tr>

<tr>

<td height="26">    <?php echo str_ireplace($content,"<font color='#FF0000'>".$content."</font>",$info[content]);?></td>

</tr>

<tr>

<td height="26"> 联系人：<?php echo str_ireplace($content,"<font color='#FF0000'>".$content."</font>",$info[linkman]);?>   联系电话：<?php echo str_ireplace($content,"<font color='#FF0000'>".$content."</font>",$info[tel]);?></td>

</tr>

<tr>

<td height="3" background="Images/line1.gif"></td>

</tr>

</table>

<?php

} while($info=mysql_fetch_array($sql));

}

}else{

?>

<?php

if($info){

do{

?>

<table width="540" border="0" cellspacing="0" cellpadding="0">

<tr>

<td height="26">『<?php echo str_ireplace($content,"<font color='#FF0000'>".$content."</font>",$info[type]);?>』 <?php echo str_ireplace($content,"<font color='#FF0000'>".$content."</font>",$info[title]);?>  <?php echo str_ireplace($content,"<font
color='#FF0000'>".$content."</font>",$info[edate]);?></td>

</tr>

<tr>

<td height="26">    <?php echo str_ireplace($content,"<font color='#FF0000'>".$content."</font>",$info[content]);?></td>

</tr>

<tr>

<td height="26"> 联系人：<?php echo str_ireplace($content,"<font color='#FF0000'>".$content."</font>",$info[linkman]);?>   联系电话：<?php echo str_ireplace($content,"<font color='#FF0000'>".$content."</font>",$info[tel]);?></td>

</tr>

<tr>

<td height="3" background="Images/line1.gif"></td>

</tr>

</table>

<?php

} while($info=mysql_fetch_array($sql));

}else{

?>

<table width="540" border="0" cellspacing="0" cellpadding="0">

<tr>

<td align="center">您检索的信息资源不存在！</td>

</tr>

</table>

<?php

}

}

?>