mysql - PHP Open Multiple Connections -

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i run multiple scripts instances of same script in different browser tabs. , them have different mysql connections. each unique connection.

i know mysql_connect has fourth parameter $new_link should open new link, not open new connection, usually. does.

i have xampp install on widows machine.

the question is: how can absolutely force php/mysql open new connections each instance of script? script runs 2mins.

http://localhost/myscript.php

here excerpts of mysql code. first load work assignment db , mark in progress:

public function loadrange() {     try{         $this->db()->query('start transaction');         $this->row = $this->db()->getobject("             select * {$this->tableranges}                             status = " . self::status_ready_for_work . "                 , domain_id = {$this->domainid}             order sort asc             limit 1");         if(!$this->row) throw new exception('could not load range');         $this->db()->update($this->tableranges, $this->row->id, array(             'thread_id' => $this->id,             'status' => self::status_working,             'run_name' => $this->runname,             'time_started' => time(),         ));         $this->db()->query('commit');     } catch(exception $e) {         $this->db()->query('rollback');         throw new exception($e->getmessage());     } }

then script may or may not insert rows in table based on finds.

in end, when task finished, assignment row updated again:

    $this->db()->update($this->tableranges, $this->row->id, array(         'status' => self::status_executed,         'time_finished' => time(),         'count' => $count,     ));

in particular, $this->tableranges table looks locked. idea why case? innodb table.

i run multiple scripts instances of same script in different browser tabs. , them have different mysql connections. each unique connection.

this case, without additional effort

the question is: how can absolutely force php/mysql open new connections each instance of script.

answer: nothing :)


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