[SOLVED] Warning messages too short

[Beluga]

I am missing vital information from a payment gateway, because PS cuts the warning messages short.

I have tried to log the warnings with for example

at the start of payment.php:

ini_set("log_errors", 1);
ob_start();

at the end of payment.php:

$Out=ob_get_contents();
ob_end_clean();
ini_set("error_log", "/mypath/php-error.log");
error_log( $Out );

But I only get the short messages logged. How can I stop Prestashop from behaving in this way?

Edited October 11, 2013 by Beluga (see edit history)

[Beluga]

It wasn't the fault of PS, but my host and luckily I noticed the beginning of the message had a number that corresponded to a field in the payment gateway API so I was able to figure it out!