Simple WordPress Logger

wp-logger.php

<?php
	
	add_filter( 'logfile_path', function(){ return __DIR__ . '/log/'; } );
	add_filter( 'logfile_name', function(){ return 'app.log'; } );
	wp_logger( __LINE__, 'Log msg' );

	/**
	 * log easy a msg
	 *
	 * @param int $line  the linenumer
	 * @param mixed  $log_content 
	 *
	 * @return void
	 */
	function wp_logger( $line, $log_content = FALSE ) {

		if ( $log_content != FALSE ) {

			date_default_timezone_set( 'UTC' );

			// $filename should be the path to a file in the upload directory.
			$kw = date('W', time());

			$log_path = apply_filters( 'logfile_path', WP_CONTENT_DIR . '/uploads/logs/' . $kw . '/' );
			$log_file = $log_path . apply_filters( 'logfile_name', date('Y-d-m', time()) . '.log' );

			if ( ! file_exists( $log_path ) ) {
				mkdir( $log_path, 0777, TRUE );
			}

			#$file     = file_get_contents( $log_file );
			$response = date( '[d-m-Y H:i ', time() ) . '- LINE ' . $line . '] ~ $ ' . $log_content . "\n";
			file_put_contents( $log_file, $response, FILE_APPEND | LOCK_EX );

		}
	}