Originariamente inviato da Virus_101
hai ragione dateTime::createFromFormat( ... )
Ho provato a fare cosi:
Codice PHP:
<?php

    $format = "Y-m-d- H:i:s" ;
    
    $dateFrom = dateTime::createFromFormat ($format, "2012-06-01- 14:05:55") ;
    $dateTo   = dateTime::createFromFormat ($format, "2012-06-01- 17:05:55") ;
    
    var_dump($dateFrom) ;

    $dateGap = $dateTo->getTimestamp() - $dateFrom->getTimestamp() ;

    echo $dateGap ;

?>
Ma:

Fatal error: Call to undefined method DateTime::createFromFormat() in /home/name/public_html/prova.php on line 5