03-25-2013
Yes, a developer should not test his own stuff!
- Group code review turns on circuits in your brain that see errors you ignored before. I call it the audience effect.
- The dialectic tension between tester and developer is also an important resource. You love it, but he loves to find fault.
You deserve pretty code, so indent, tab align, slip in white space to keep things neat. You get paid back in better review, fewer errors and faster fixes. Every time you use a new line or each item, you help track changes in line oriented CM tools like SCCS and diff.
Log like you expect a midnight call when you are on vacation. After years of debugging with bad logging, I am now a fastidious logger and error checker. From first trial run to last is very short, usually, because my code does not go far off the track but I get a nice message and exit. Frame runs in the same log with header and trailer lines and blank lines. Put exact time stamps on all events. It's frustrating to be fixing errors in the wrong log. Put date-time-elements in file names, especially the log. For daemons that run many days, use syslog or start a new log every day. You can have a standard logging routine that saves the integer time() of tomorrow so I can check time() and close the log when necessary, with an old log trailer and the new log with a header.
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LEARN ABOUT PHP
xslt_set_log
XSLT_SET_LOG(3) 1 XSLT_SET_LOG(3)
xslt_set_log - Set the log file to write log messages to
SYNOPSIS
void xslt_set_log (resource $xh, [mixed $log])
DESCRIPTION
This function allows you to set the file in which you want XSLT log messages to, XSLT log messages are different than error messages, in
that log messages are not actually error messages but rather messages related to the state of the XSLT processor. They are useful for
debugging XSLT, when something goes wrong.
By default logging is disabled, in order to enable logging you must first call xslt_set_log(3) with a boolean parameter which enables log-
ging, then if you want to set the log file to debug to, you must then pass it a string containing the filename.
PARAMETERS
o $
xh -The XSLT processor link identifier, created with xslt_create(3).
o $log
- This parameter is either a boolean value which toggles logging on and off, or a string containing the logfile in which log
errors too.
RETURN VALUES
No value is returned.
NOTES
Note
Please note that file:// is needed in front of the path when using Windows.
EXAMPLES
Example #1
Using the XSLT Logging features
<?php
$xh = xslt_create();
xslt_set_log($xh, true);
xslt_set_log($xh, getcwd() . '/myfile.log');
$result = xslt_process($xh, 'dog.xml', 'pets.xsl');
echo $result;
xslt_free($xh);
?>
PHP Documentation Group XSLT_SET_LOG(3)