mysql - simple delete query using php -


i trying create delete query html using php:

html:

<form method="post" action="" >     id<input type="text" name="x" />     <input type="submit"  value="delete" name="del"/> </form>

php:

<?php $connection = mysql_connect("localhost","root","") or die ("couldn't connect server"); $db = mysql_select_db("smap", $connection) or die ("couldn't select database"); if(isset($_post['del'])) {     $a = $_post['x'];     $sql = mysql_query("delete syracuseone id ='$a'";)     if(mysql_query($sql)) {         echo "deleted";     } else {         echo "fail";     }  } ?>

i error:

notice: undefined index: x

any assistance stack?

it means post value not passed next page, can $a = isset($_post['x']) ? $_post["a"] : 0;

take look, here it's usage:

<form method="post" action="" >     id<input type="text" name="x" />     <input type="submit"  value="delete" name="del"/> </form>  <?php $connection = mysql_connect("localhost", "root", "") or die("couldn't connect server"); $db         = mysql_select_db("smap", $connection) or die("couldn't select database"); if(isset($_post['del'])){     $a   = isset($_post['x']) ? $_post["a"] : 0;     $sql = mysql_query("delete syracuseone id ='$a'");     if(mysql_query($sql)){         echo "deleted";     }else{         echo "fail";     } } ?>

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