note 91197 added to ref.mysql

From: Date: Fri, 29 May 2009 15:36:42 +0000
Subject: note 91197 added to ref.mysql
Groups: php.notes 
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Here is a function for preventing a MySQL query timeout. Add a temporary table to the database: CREATE TABLE temp_table ( ID DOUBLE , temp BLOB ); Call this function in every iteration of any long loops in your code (it will only be run at a maximum once every 15 seconds, regardless of how often the function is called): <?php //insert and delete something from the temp_table table to prevent a timeout function preventMySQLTimeout() { static $timeoutCounter = 0; if(time() - $timeoutCounter > 15) { //perform 3 types of operations to keep the connection from timing out! :-) mysql_query("SELECT * FROM temp_table"); //SELECT mysql_query("DELETE FROM temp_table"); //DELETE mysql_query("INSERT INTO temp_table (temp) VALUES ('" . rand(1,200000) . "')"); //INSERT $timeoutCounter = time(); echo "\n<br>preventMySQLTimeout() ATTEMPT\n<br>"; } } ?> MySQL has multiple timeout counters, one for inserts, and one for deletes, and I could not find a way to extend them in PHP. Please note that this is a different issue entirely than the 'connect' timeout. Every 15 seconds, this function will insert, select, and delete a row from the temporary table, thus preventing a query timeout. Good Luck! ---- Server IP: 208.69.120.35 Probable Submitter: 97.81.100.17 ---- Manual Page -- http://www.php.net/manual/en/ref.mysql.php Edit -- https://master.php.net/note/edit/91197 Del: integrated -- https://master.php.net/note/delete/91197/integrated Del: useless -- https://master.php.net/note/delete/91197/useless Del: bad code -- https://master.php.net/note/delete/91197/bad+code Del: spam -- https://master.php.net/note/delete/91197/spam Del: non-english -- https://master.php.net/note/delete/91197/non-english Del: in docs -- https://master.php.net/note/delete/91197/in+docs Del: other reasons-- https://master.php.net/note/delete/91197 Reject -- https://master.php.net/note/reject/91197 Search -- https://master.php.net/manage/user-notes.php

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