Top PHP log errors

error.php

<?php
// Read the contents of the log file into an array
$log_file = 'web1_php_errors.log';
$log_entries = file($log_file, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);

// Filter log entries for the last 14 days
$current_date = new DateTime();
$filtered_entries = array_filter($log_entries, function($entry) use ($current_date) {
    // Extract the date part and convert it to a DateTime object
    $entry_date_str = substr($entry, 1, 20); // Extracting the date part
    $entry_date = DateTime::createFromFormat('d-M-Y H:i:s', $entry_date_str);

    // Check if the entry date is within the last 14 days
    if (!$entry_date) return false;
    $interval = $current_date->diff($entry_date);
    return $interval->days <= 14;
});

// Strip the timestamp part from each filtered entry
$filtered_entries = array_map(function($entry) {
    // Strip the timestamp part
    $entry = preg_replace('/\[\d{2}-[A-Za-z]{3}-\d{4} \d{2}:\d{2}:\d{2} UTC\] /', '', $entry);
    return $entry;
}, $filtered_entries);

// Count occurrences of each unique error
$error_counts = array_count_values($filtered_entries);

// Sort errors by occurrence count in descending order
arsort($error_counts);

// Get the top 10 errors
$top_errors = array_slice($error_counts, 0, 10);

// Output CSV data
$output_csv = fopen('report.csv', 'w');
fputcsv($output_csv, ['Error', 'Count']);
foreach ($top_errors as $error => $count) {
    fputcsv($output_csv, [$error, $count]);
}
fclose($output_csv);

echo "CSV file 'report.csv' has been generated successfully.". PHP_EOL;

An evolved version is not available https://github.com/svandragt/top-php-errorlog