I have a HTML list of about 500 items and a "filter" box above it. I started by using jQuery to filter the list when I typed a letter (timing code added later): $('#filter').keyup( function() { var jqStart = (new Date).getTime(); var search = $(this).val().toLowerCase(); var $list = $('ul.ablist > li'); $list.each( function() { if ( $(this).text().toLowerCase().indexOf(search) === -1 ) $(this).hide(); else $(this).show(); } ); console.log('Time: ' + ((new Date).getTime() - jqStart)); } ); However, there was a couple of seconds delay after typing each letter (particularly the first letter). So I thought it may be slightly quicker if I used plain Javascript (I read recently that jQuery's each function is particularly slow). Here's my JS equivalent: document.getElementById('filter').addEventListener( 'keyup', function () { var jsStart = (new Date).getTime()...
PHPUnit uses an error handler function to trap and display errors, but from the PHP manual on error handlers,
ReplyDeleteThe following error types cannot be
handled with a user defined function:
E_ERROR, E_PARSE, E_CORE_ERROR,
E_CORE_WARNING, E_COMPILE_ERROR,
E_COMPILE_WARNING, and most of
E_STRICT raised in the file where
set_error_handler() is called.
If you are running tests in a separate process, PHPUnit will get the error and message from the interpreter, but there will be no stack trace available. This is simply a limitation of the PHP interpreter. Fatal means fatal.
This is a lame yet effective way that I've found to get a stack dump when php doesn't give one. I have this in a classed called DebugUtil.
ReplyDelete/**
* This is for use when you have the UBER-LAME...
* "PHP Fatal error: Maximum function nesting level of '100' reached,
* aborting! in Lame.php(1273)
* ...which just craps out leaving you without a stack trace.
* At the line in the file where it finally spazzes out add
* something like...
* DebugUtil::dumpStack('/tmp/lame');
* It will write the stack into that file every time it passes that
* point and when it eventually blows up (and probably long before) you
* will be able to see where the problem really is.
*/
public static function dumpStack($fileName)
{
$stack = "";
foreach (debug_backtrace() as $trace)
{
if (isset($trace['file']) &&
isset($trace['line']) &&
isset($trace['class']) &&
isset($trace['function']))
{
$stack .= $trace['file'] . '#' .
$trace['line'] . ':' .
$trace['class'] . '.' .
$trace['function'] . "\n";
}
}
file_put_contents($fileName, $stack);
}