egroupware/doc/analyse-warnings.php

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#!/usr/bin/env php -qC
<?php
/**
* EGroupware - analyse PHP log for PHP Warnings, Deprecated, Fatal error and aggregate them file and line
*
* @link https://www.egroupware.org
* @license https://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @author rb@egroupware.org
* @copyright 2024 by rb@egroupware.org
*/
if (php_sapi_name() !== 'cli') // security precaution: forbid calling as web-page
{
die('<h1>'.basename($_SERVER['PHP_SELF']).' must NOT be called as web-page --> exiting !!!</h1>');
}
$warnings_by_file = [];
// allow to pipe in tail of log and stop with Ctrl-C to show analysis
pcntl_signal(SIGINT, function() use ($warnings_by_file)
{
echo "Caught SIGINT\n";
analyse($warnings_by_file);
});
pcntl_signal(SIGTERM, function() use ($warnings_by_file)
{
echo "Caught SIGTERM\n";
analyse($warnings_by_file);
});
if ($_SERVER['argc'] > 1)
{
$files = $_SERVER['argv'];
array_shift($files);
$fp = popen('cat '.implode(' ', array_map('escapeshellarg', $files)), 'r');
}
else
{
$fp = STDIN;
}
$n = 1;
while(($line = fgets($fp)))
{
if (preg_match('#PHP (Warning|Deprecated|Fatal error): (.*) in (/[^ ]+\.php) on line (\d+)\r?\n?$#', $line, $matches))
{
list(, $type, $warning, $file, $line) = $matches;
$warnings_by_file[$file][] = $line.': '.$type.' '.$warning;
}
error_log("\r$n: $line"); $n++;
}
error_log("Analysing ...");
analyse($warnings_by_file);
function analyse(array $warnings_by_file)
{
uasort($warnings_by_file, $count_sort = static function ($a, $b) {
return count($b) <=> count($a);
});
foreach ($warnings_by_file as $file => $messages)
{
echo "\n$file: ".count($messages)."\n";
$warnings_by_line = [];
foreach ($messages as $line_msg)
{
list($line, $msg) = explode(':', $line_msg, 2);
$warnings_by_line[$line][] = $msg;
}
uasort($warnings_by_line, $count_sort);
foreach ($warnings_by_line as $line => $warnings)
{
echo 'Line '.$line . ': '.count($warnings).' times: ' . implode(', ', array_unique($warnings)) . "\n";
}
}
}