Utility functions for **** php spaghetti codes.

util.php

<?php
function _findRequestFlag($name){
    if(isset($_REQUEST[$name])){
        return true;
    }
    return false;
}

function _getRequestOrDie($name, $message){
    $value = _getArg($name);
    if(is_null($value)){
        _error($message);
    }
	return $value;
}

function _getRequest($name, $default = null){
    if(isset($_REQUEST[$name])){
        return $_REQUEST[$name];
    }
    return $default;
}

function _getArgOrDie($name, $message){
    $value = _getArg($name, null);
    if(is_null($value)){
        _error($message);
    }
    return $value;
}

function _getArg($name, $default){
    foreach($_SERVER['argv'] as $k => $v){
        if(($v == "--" . $name || $v == "-" . $name) &&
            isset($_SERVER['argv'][$k + 1])){
            return $_SERVER['argv'][$k + 1];
        }
    }
    return $default;
}

function _findArg($name){
    return in_array("-" . $name, $_SERVER['argv']) || in_array("--" . $name, $_SERVER['argv']);
}

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

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

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

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

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