Re: Trying to delete

From: Date: Wed, 14 Aug 2002 03:47:26 +0000
Subject: Re: Trying to delete
References: 1  Groups: php.db php.general 
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In article <000001c2433c$e2e3e4c0$e5c405c8@gateway>, icaam@icaam.com.ar says... > Hi all. > > I have a small problem here. I have this full-PHP site working with a > MySQL db and came to a dead road when trying to delete a record from it > from the Administrator's page. I have PHP to make this decision after > the Administrator selected the record to delete and answered YES to the > =BFAre you sure...? The last part will pass a hidden value of $editpic > which tells the deleting script which artid to delete from the db. This > is the code that does the deletion: > > else if ($deleteyes) > { > $query =3D "DELETE FROM saav_arts WHERE artid =3D '$editpic' LIMIT > 1"; > $result =3D mysql_query($query) or die (mysql_error()); > > if (!$result) > { > echo "The Picture could NOT be deleted<br>"; > echo "<form action=3D\"".$PHP_SELF."\" > method=3D\"post\">"; > echo "<input type=3D\"submit\" name=3D\"cancel\" > value=3D\"Back to Edition\">"; > echo "</form>"; > } > else if ($result) > { > echo "The Picture was deleted sucsesfully<br>"; > echo "<form action=3D\"".$PHP_SELF."\" > method=3D\"post\">"; > echo "<input type=3D\"submit\" name=3D\"cancel\" > value=3D\"Back to Edition\">"; > echo "</form>"; > } > } > > Cesar Aracena > CE / MCSE+I You have made some wrong assumptions in your code here; it is quite possible that $result may be true but no entries have been deleted. You perhaps should look at the possibility of testing mysql_affected_rows to determine whether any rows have been updated/deleted. WHERE artid = '$editpic' implies that you expect artd to be a text field of type char or varchar because you have enclosed the value that you are testing in single quotes; if artid is in fact an integer type, this query will not affect any rows, as the text value will never match an integer field value. -- David Robley Temporary Kiwi! Quod subigo farinam

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