ログを読むやつ

showlogs.php

<?php
$dir = _getArgOrDie("dir", "needs dir option");
$date = _getArgOrDie("date", "needs date");
$range = _getArg("range", 3600);

$date = strtotime(trim($date));
$logfiles = glob("$dir/*/*");

$out = false;
$timere = '/(([0-9: ]+ )?(Jan|JAN|Feb|FEB|Mar|MAR|Apr|APR|May|MAY|Jun|JUN|Jul|JUL|Aug|AUG|Sep|SEP|Oct|OCT|Nov|NOV|Dec|DEC)[0-9: ]+ |(?=\[)?(201[0-9][^ \]]+))/';
foreach($logfiles as $logfile){
	$lines = file($logfile);
	if(!isset($lines[0])){
		continue;
	}
	$output = [];
	foreach($lines as $line){
		if(!preg_match($timere, $line, $regs)){
			continue;
		}
		$logdate = strtotime(trim($regs[1]));
		if($logdate - $date > 0 && $logdate - $date < $range){
			$line = preg_replace($timere, '', $line);
			$line = date('[Y/m/d H:i:s] ', $logdate) . $line;
			$output[] = trim($line);
			
		}
	}
	if(count($output)){
		if($out){
			echo "\n\n";
		}
		echo "$logfile\n";
		echo implode("\n", $output);
		$out = true;
	}
}
echo "\n";

//get arg or die
function _getArgOrDie($name, $message){
    $value = _getArg($name);
    if(is_null($value)){
        _error($message);
    }
	return $value;
}

//find command line argument
function _findArgFlag($name){
	$argv = $_SERVER['argv'];
	foreach($argv as $v){
		if(preg_match('/(-+)' . $name . '/', $v)){
			return true;
		}
	}
	return false;
}

//get command line argument
function _getArg($name, $default = null){
	$argv = $_SERVER['argv'];
	foreach($argv as $k => $v){
		if(preg_match('/(-+)' . $name . '$/', $v) &&
		   isset($argv[$k + 1])){
			return $argv[$k + 1];
		}
	}
	return $default;
}

//print message
function _msg($msg, $indent = 0){
	$sp = '';
	for ($i = 0; $i < $indent; $i++){
		$sp .= '  ';
	}
	echo $sp . $msg . "\n";
}

//print info message
function _info($msg, $indent = 0){
	$date = date('Y/m/d H:i:s');
	$msg = '[INFO] ' . $date . " : " . $msg;
	_msg($msg, $indent);
}

//print warn message
function _warn($msg, $indent = 0){
	$date = date('Y/m/d H:i:s');
	$msg = '[WARN] ' . $date . " : " . $msg;
	_msg($msg, $indent);
}

//print error message
function _error($msg, $indent = 0){
	$date = date('Y/m/d H:i:s');
	$msg = '[FATAL] ' . $date . " : " . $msg;
	_exit($msg, $indent);
}

//print exit message
function _exit($msg, $indent = 0){
	_msg($msg, $indent);
	exit;
}