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Case: Main page of the additions and deletions to search

Source: Internet
Author: User
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Main Page:

Main Page code:

&LT;BODY&GT;&LT;H1 align= "Center" > main Page PHP$db=NewMysqli ("localhost", "root", "123", "info");!Mysqli_connect_error() or die("Connection Failed");$sql= "SELECT * FROM Info";$result=$db->query ($sql);$attr=$result-Fetch_all ();foreach($attr  as $v){    $s=$v[2]==1? ' Male ': ' Female '; $sq= "SELECT name from Nation where Code= ' {$v[3]} ' "; $r=$db->query ($sq); $a=$r-Fetch_row (); Echo"<tr> <td align= ' center ' >{$v[0]}</td> <td align= ' center ' >{$v[1]}</td> <td align= ' center ' >{$s}</td> <td align= ' center ' >{$a[0]}</td> <td align= ' center ' >{$v[4]}</td> <td align= ' center ' ><a href= ' delete.php?code={$v[0]} ' > Delete </a> <a href= ' update.php?code={$v[0]} ' > Modify </a> </td> </tr>";}? ></table><br/><a href= "add.php" > Add Data </a></body>
To add a page:
Add code:
Except for integers, decimals, and bool, the other quotes are quoted.
<form action= "addchuli.php" method= "POST" >Code: <input type= "text" name= "code"/><br/>name: <input type= "text" name= "name"/><br/>Sex: <input type= "Radio" value= "1" name= "sex"/> Male <input type= "Radio" value= "0" name= "sex"/> female <br/>ethnic: <select name= "select" &GT;&LT;?PHP$db=NewMysqli ("localhost", "root", "123", "info"); !Mysqli_connect_error() or die("Connection Error"); $sql= "SELECT * From Nation"; $result=$db->query ($sql); /*while ($attr = $result->fetch_row ()) {echo "<option value= ' {$attr [0]} ' >{$attr [1]}</option>"; }*/    $attr=$result-Fetch_all (); foreach($attr  as $v)    {        Echo"<option value= ' {$v[0]} ' >{$v[1]} </option> "; }    ? ></select><br/>Birthday: <input type= "date" name= "Birthday" ><br/><input type= "Submit" value= "Submit"/></form>
Add Processing page code:
<?PHPHeader("Content-type:text/html;charset=utf-8");$code=$_post["Code"];$name=$_post["Name"];@$sex=$_post["Sex"];$nation=$_post["Select"];$birthday=$_post["Birthday"];$db=NewMysqli ("localhost", "root", "123", "info");!Mysqli_connect_error() or die("Connection Failed");$sql= "INSERT into info values (' {$code}‘,‘{$name}‘,{$sex},‘{$nation}‘,‘{$birthday}‘)";Var_dump($sql);$result=$db->query ($sql);if($result){    Header("location:main.php"); }Else{    Echo"Add Failed";}
Delete Processing page code:
<?PHPHeader("Content-type:text/html;charset=utf-8");$code=$_get["Code"];$db=NewMysqli ("localhost", "root", "123", "info");!Mysqli_connect_error() or die("Connection Failed");$sql= "Delete from info where code= ' {$code}‘";$result=$db->query ($sql);if($result){Header("location:main.php");}Else{Echo"Delete Failed";}
To modify the Display page:
Code: Notice where PHP is embedded
<body><?PHP$code=$_get["Code"];$DX=NewMysqli ("localhost", "root", "123", "info");!Mysqli_connect_error() or die("Connection Failed");$sq= "SELECT * from info where code= ' {$code}‘";$re=$DX->query ($sq);$att=$re-Fetch_row ();? ><form action= "xiugaichuli.php" method= "POST" >Code: <input type= "text" name= "code" readonly= "readonly" value= "<?php Echo$att[0];? > "/><br/>name: <input type= "text" name= "name" value= "<?php Echo$att[1];? > "/><br/>Sex: <input type= "Radio" value= "1" name= "Sex" <?phpEcho $att[2]? " Checked= ' checked ' ":" ";?>/>male<input type= "Radio" value= "0" name= "Sex" <?phpEcho $att[2]? "": "checked= ' checked '";? >/>female<br/>ethnic: <select name= "select" &GT;&LT;?PHP$db=NewMysqli ("localhost", "root", "123", "info"); !Mysqli_connect_error() or die("Connection Error"); $sql= "SELECT * From Nation"; $result=$db->query ($sql); /*while ($attr = $result->fetch_row ()) {echo "<option value= ' {$attr [0]} ' >{$attr [1]}</option>"; }*/    $attr=$result-Fetch_all (); foreach($attr  as $v)    {            if($att[3]==$v[0])        {            Echo"<option value= ' {$v[0]} ' >{$v[1]} </option> "; }            Echo"<option value= ' {$v[0]} ' >{$v[1]} </option> "; }    ? ></select><br/>Birthday: <input type= "text" name= "Birthday" value= "<?php Echo$att[4];? > "/><br/><input type=" Submit "value=" Modify "/></form></body>
To modify the processing page:
<?PHPHeader("Content-type:text/html;charset=utf-8");$code=$_post["Code"];$name=$_post["Name"];$sex=$_post["Sex"];$nation=$_post["Select"];$bir=$_post["Birthday"];$db=NewMysqli ("localhost", "root", "123", "info");!Mysqli_connect_error() or die("Connection Failed");$sql= "Update info set name= ' {$name} ', sex={$sex},nation= ' {$nation} ', birthday= ' {$bir} ' where code= ' {$code}‘";Echo $sql;$result=$db->query ($sql);Var_dump($result);if($result){        Header("location:main.php"); }Else{        Echo"Modify Failed"; }
 Case: Main Page additions and deletions

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