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POComparing two mysql recordsets using php
 

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    <p>I need to compare two mysql recordsets using php</p> <p>Comparing a record in the first recordset is present in the second and returns a true value, or a false if its not present.</p> <p>The problem is once a do a single pass of the recordset it doesn't return to the beginning so i can compare the the remaining records of recordset1 to it.</p> <p>The code i'm using is:</p> <pre><code>*mysql_select_db($database_db, $db); $query_rec_teams = "SELECT tbl_items.* FROM tbl_items;"; $rec_items = mysql_query($query_rec_items, $db) or die(mysql_error()); $row_rec_items = mysql_fetch_assoc($rec_items); $totalRows_rec_items = mysql_num_rows($rec_items); $query_rec_itemsLeft = "(SELECT tbl_itemsleft.* FROM tbl_itemsLeft"; $rec_itemsLeft = mysql_query($query_rec_itemsLeft, $db) or die(mysql_error()); $row_rec_itemsLeft = mysql_fetch_assoc($rec_itemsLeft); $totalRows_rec_itemsLeft = mysql_num_rows($rec_itemsLeft); //iterate first recordset, populate variables do{ $itemPresent=0; $item=$row_rec_item['ItemID']; //iterate second recordset and compare item variable with itemID fields in recordset, if exist echo true, else echo false do { if ($row_rec_itemsLeft(['ItemID'] == $item){ itemPresent=1; } else{ itemPresent=0; } echo itemPresent; } while ($row_rec_itemsLeft = mysql_fetch_assoc($rec_itemsLeft)); } while ($row_rec_items = mysql_fetch_assoc($rec_items)); mysql_free_result($rec_itemsLeft); mysql_free_result($rec_items); ?&gt;* </code></pre> <p>would it be easier to populate the recordsets into arrays and compare the arrays instead</p> <p>help appreciated</p>
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    1. COWhat are the Stars (*) at the beginning and at end? and Doesn't looks like a congested code?
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    2. COsorry stars are not in actual code. i've left some of the code out.
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