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can not generate result Unknown column '


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 How can I write the HTML, not have an sql escape error, and do the insert?

<?php
$img_src = ob_get_contents(); //25x25 html table of images being written by about 30 lines of PHP
$sql_map_img="INSERT INTO map_image
(`user`, `map_id`, `map_img`)
VALUES ('$id', NULL, `$img_src`);";
//echo $sql_map_img;
$result_creature = mysql_query($sql_map_img, $con) or die ("can not generate result " . mysql_error());
?>
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