Php script log to file

Write to a log file with PHP

After writing custom PHP “log” function several times I finally decided to create a simple Logging PHP class. First call of lwrite method will open log file implicitly and write line to the file. Every other lwrite will use already opened file pointer until closing file with lclose. It is always a good idea to close file when it’s done. This should prevent file from corruption and overhead in closing file is negligible.

Before you read further, I also wrote a post how to Log PHP errors to the separate file, if you are looking for such information.

// Logging class initialization $log = new Logging(); // set path and name of log file (optional) $log->lfile('/tmp/mylog.txt'); // write message to the log file $log->lwrite('Test message1'); $log->lwrite('Test message2'); $log->lwrite('Test message3'); // close log file $log->lclose();

Output in mylog.txt will look like:

[10/Jun/2012:10:36:19] (test) Test message1 [10/Jun/2012:10:36:19] (test) Test message2 [10/Jun/2012:10:36:19] (test) Test message3

Logging class source code:

/** * Logging class: * - contains lfile, lwrite and lclose public methods * - lfile sets path and name of log file * - lwrite writes message to the log file (and implicitly opens log file) * - lclose closes log file * - first call of lwrite method will open log file implicitly * - message is written with the following format: [d/M/Y:H:i:s] (script name) message */ class Logging < // declare log file and file pointer as private properties private $log_file, $fp; // set log file (path and name) public function lfile($path) < $this->log_file = $path; > // write message to the log file public function lwrite($message) < // if file pointer doesn't exist, then open log file if (!is_resource($this->fp)) < $this->lopen(); > // define script name $script_name = pathinfo($_SERVER['PHP_SELF'], PATHINFO_FILENAME); // define current time and suppress E_WARNING if using the system TZ settings // (don't forget to set the INI setting date.timezone) $time = @date('[d/M/Y:H:i:s]'); // write current time, script name and message to the log file fwrite($this->fp, "$time ($script_name) $message" . PHP_EOL); > // close log file (it's always a good idea to close a file when you're done with it) public function lclose() < fclose($this->fp); > // open log file (private method) private function lopen() < // in case of Windows set default log file if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') < $log_file_default = 'c:/php/logfile.txt'; >// set default log file for Linux and other systems else < $log_file_default = '/tmp/logfile.txt'; >// define log file from lfile method or use previously set default $lfile = $this->log_file ? $this->log_file : $log_file_default; // open log file for writing only and place file pointer at the end of the file // (if the file does not exist, try to create it) $this->fp = fopen($lfile, 'a') or exit("Can't open $lfile!"); > >

For PHP prior to version 5.2.0 you will have to replace or change line with built-in PHP function pathinfo() because PATHINFO_FILENAME constant was added in PHP 5.2.0

// for PHP 5.2.0+ $script_name = pathinfo($_SERVER['PHP_SELF'], PATHINFO_FILENAME); // for PHP before version 5.2.0 $script_name = basename($_SERVER['PHP_SELF']); $script_name = substr($script_name, 0, -4); // php extension and dot are not needed

If you want to send a message to the PHP’s system logger, please see the error_log PHP command.

Источник

Запись в лог-файл в PHP

Несколько вариантов как быстро организовать запись данных в лог-файл.

Строки текста

$log = date('Y-m-d H:i:s') . ' Запись в лог'; file_put_contents(__DIR__ . '/log.txt', $log . PHP_EOL, FILE_APPEND);

Запись в лог-файле:

2019-02-02 16:00:38 Запись в лог

Массивы

Если нужно записать в лог обычный массив, массив с индексами или многомерный массив, поможет функция print_r() .

$array = array( 'foo' => 'bar', 'helo' => 'world', 'array' => array(1, 2) ); $log = date('Y-m-d H:i:s') . ' ' . print_r($array, true); file_put_contents(__DIR__ . '/log.txt', $log . PHP_EOL, FILE_APPEND);

Запись в лог-файле:

2019-02-02 16:43:27 Array ( [foo] => bar [helo] => world [array] => Array ( [0] => 1 [1] => 2 ) )

В одну строку

$array = array( 'foo' => 'bar', 'helo' => 'world', 'array' => array(1, 2) ); $log = date('Y-m-d H:i:s') . ' '; $log .= str_replace(array(' ', PHP_EOL), '', print_r($array, true)); file_put_contents(__DIR__ . '/log.txt', $log . PHP_EOL, FILE_APPEND);

2019-02-02 16:56:00 Array([foo] => bar[helo] => world[array] => Array([0] => 1[1] => 2))

Результат работы PHP скрипта

Если нужно добавить в лог результат работы PHP скрипта, помогут функции буферизации ob_start() и ob_get_clean() .

ob_start(); // Вывод заголовков браузера. foreach (getallheaders() as $name => $value) < echo "$name: $value\n"; >$log = date('Y-m-d H:i:s') . PHP_EOL . ob_get_clean() . PHP_EOL; file_put_contents(__DIR__ . '/log.txt', $log, FILE_APPEND);

Запись в лог-файле:

2019-11-20 12:54:58 Host: example.com X-HTTPS: 1 X-Forwarded-Proto: https Connection: close cache-control: max-age=0 upgrade-insecure-requests: 1 user-agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/534 (KHTML, like Gecko) sec-fetch-user: ?1 accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3 x-compress: null sec-fetch-site: none sec-fetch-mode: navigate accept-encoding: gzip, deflate, br accept-language: ru-RU,ru;q=0.9,en-US;q=0.8,en;q=0.7 cookie: PHPSESSID=123

Запись в лог ошибок PHP

Если логирование предполагает фиксацию только ошибок, то лучше писать их в общий лог PHP, подробнее на php.net.

error_reporting(E_ALL); ini_set('error_log', __DIR__ . '/php-errors.log'); error_log('Запись в лог', 0);

[02-Feb-2019 20:18:17 Europe/Moscow] Запись в лог

Источник

Логирование в файл PHP

На этой странице представленно несколько вариантов как быстро организовать запись данных в лог-файл.

Строки текста

$log = date('Y-m-d H:i:s') . ' Запись в лог'; file_put_contents(__DIR__ . '/log.txt', $log . PHP_EOL, FILE_APPEND);

2019-02-02 16:00:38 Запись в лог

Массивы

Если нужно записать в лог обычный массив, массив с индексами или многомерный массив, поможет функция print_r() .

$array = array( 'foo' => 'bar', 'helo' => 'world', 'array' => array(1, 2) ); $log = date('Y-m-d H:i:s') . ' ' . print_r($array, true); file_put_contents(__DIR__ . '/log.txt', $log . PHP_EOL, FILE_APPEND);

2019-02-02 16:43:27 Array ( [foo] => bar [helo] => world [array] => Array ( [0] => 1 [1] => 2 ) )

В одну строку

$array = array( 'foo' => 'bar', 'helo' => 'world', 'array' => array(1, 2) ); $log = date('Y-m-d H:i:s') . ' '; $log .= str_replace(array(' ', PHP_EOL), '', print_r($array, true)); file_put_contents(__DIR__ . '/log.txt', $log . PHP_EOL, FILE_APPEND);

2019-02-02 16:56:00 Array([foo] => bar[helo] => world[array] => Array([0] => 1[1] => 2))

Результат работы PHP скрипта

Если нужно добавить в лог результат работы PHP скрипта, помогут функции буферизации ob_start() и ob_get_clean() .

ob_start(); // Вывод заголовков браузера. foreach (getallheaders() as $name => $value) < echo "$name: $value\n"; >$log = date('Y-m-d H:i:s') . PHP_EOL . ob_get_clean() . PHP_EOL; file_put_contents(__DIR__ . '/log.txt', $log, FILE_APPEND);

2019-11-20 12:54:58 Host: example.com X-HTTPS: 1 X-Forwarded-Proto: https Connection: close cache-control: max-age=0 upgrade-insecure-requests: 1 user-agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/534 (KHTML, like Gecko) sec-fetch-user: ?1 accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3 x-compress: null sec-fetch-site: none sec-fetch-mode: navigate accept-encoding: gzip, deflate, br accept-language: ru-RU,ru;q=0.9,en-US;q=0.8,en;q=0.7 cookie: PHPSESSID=123

Запись в лог ошибок PHP

Если логирование предполагает фиксацию только ошибок, то лучше писать их в общий лог PHP, подробнее на php.net.

error_reporting(E_ALL); // Механизм ошибок/исключений, всегда используйте E_ALL ini_set('ignore_repeated_errors', TRUE); // Всегда используйте TRUE ini_set('display_errors', FALSE); // Отображение ошибки/исключения, используйте значение FALSE только в рабочей среде или на реальном сервере, используйте TRUE в среде разработки ini_set('log_errors', TRUE); // Механизм протоколирования файлов ошибок/исключений ini_set('error_log', 'errors.log'); // Путь

Источник

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