note 46704 added to ref.mysql

From: Date: Wed, 20 Oct 2004 17:42:29 +0000
Subject: note 46704 added to ref.mysql
Groups: php.notes 
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Re: Melvin Nava The first select query is not needed. You can use mysql_affected_rows() to see if the update modified any rows. Also, it is a waste to fetch a value and do the addition in PHP when you can do it in the database (much safer). If no rows were affected, the insert is necessary: <? $c_update = "UPDATE stats_pagecounter SET page_hits = page_hits + 1 WHERE page_name = '$page'"; $c_hit = mysql_query($c_update, $c_link) or die('counter UPDATE error: '.mysql_errno().', '.mysql_error()); if (mysql_affected_rows($c_link) == 0) { //not found $c_insert = "INSERT INTO stats_pagecounter VALUES ( '0', '$page', '1')"; $c_page = mysql_query($c_insert, $c_link) or die('counter INSERT error: '.mysql_errno().', '.mysql_error()); $pcounter = 1; } ?> ---- Manual Page -- http://www.php.net/manual/en/ref.mysql.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+46704 Delete -- http://master.php.net/manage/user-notes.php?action=delete+46704&report=yes Reason: bad code -- http://master.php.net/manage/user-notes.php?action=delete+46704&report=yes&reason=bad+code Reason: spam -- http://master.php.net/manage/user-notes.php?action=delete+46704&report=yes&reason=spam Reason: useless example -- http://master.php.net/manage/user-notes.php?action=delete+46704&report=yes&reason=useless+example Reason: contains commercial links -- http://master.php.net/manage/user-notes.php?action=delete+46704&report=yes&reason=contains+commercial+links Reason: useless note -- http://master.php.net/manage/user-notes.php?action=delete+46704&report=yes&reason=useless+note Reject -- http://master.php.net/manage/user-notes.php?action=reject+46704&report=yes Search -- http://master.php.net/manage/user-notes.php

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