php - Warning Invalid argument supplied for foreach() -

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i getting error message , don't have clue it.

warning: invalid argument supplied foreach() in /home/a9083956/public_html/zundappgroesbeek/beheer/testretrievesql.html on line 31

this code working with. warning 31st line, foreach() line. ive changed = => make checkbox work, delete code won't work still.

<html>   <head>     <title>retrieve , delete data  database </title>   </head> <body>  <?php     // connect database server     mysql_connect("mysql7.000webhost.com", "a9083956_test", "sesam") or die (mysql_error ());      // select database     mysql_select_db("a9083956_test") or die(mysql_error());      // sql query     $strsql = "select * forum_question";      // execute query (the recordset $rs contains result)     $rs = mysql_query($strsql);      // loop recordset $rs     // each row made array ($row) using mysql_fetch_array     while($row = mysql_fetch_array($rs)) {        // write value of column firstname (which in array $row)       echo '<input name="delete['.$row['id'].']" type="checkbox">';       echo $row['topic']. " " .$row['name']. " " .$row['datetime'] . "<br />";        $delete = $_post['delete'];        foreach($delete $id => $value)       {           $id = mysql_real_escape_string($id);           mysql_query("delete table_name id => $id");       }     }      // close database connection     mysql_close();     ?>     </body> </html>

if don't check boxes, $_post['delete'] not set. use if (isset($_post['delete'])) before foreach.

also there's bug in sql, want where id = "$id", otherwise delete more rows intended...


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