laravel--常用全局函数

常用的全局函数，放置于app/include/global.func.php

//写入错误日志
function myLog($filename, $content) {
    $handle = fopen($filename, 'a');
    fwrite($handle, date('[Y-m-d H:i:s] ') . $content . "\n");
    fclose($handle);
}
function weiXinToScreenLog($content,$file='') {
    if(!$file){
        $file = PUBLIC_PATH.'/log/'.date('Y').'/'.date('md').'/log.log';
    }
    $dir = dirname($file);
    if (!file_exists($dir)) {
        mkdir($dir, 0777, true);
    }
    myLog($file, $content);
}
/**
 * 使用方法：unicode2utf8_2("\ue056")，\ue056来自网站http://code.iamcal.com/php/emoji/   Softbank那列数据
 */
function unicode2utf8_2($str){ //关于unicode编码转化的第二个函数，用于显示emoji表情
    $str = '{"result_str":"'.$str.'"}';  //组合成json格式
    $strarray = json_decode($str,true); //json转换为数组，利用 JSON 对 \uXXXX 的支持来把转义符恢复为 Unicode 字符
    return $strarray['result_str'];
}
/**
* 将一个字串中含有全角的数字字符、字母、空格或'%+-()'字符转换为相应半角字符
* @access public
* @param string $str 待转换字串
* @return string $str 处理后字串
*/
function make_semiangle($str)   
{   
    $arr = array('０' => '0', '１' => '1', '２' => '2', '３' => '3', '４' => '4',   
                 '５' => '5', '６' => '6', '７' => '7', '８' => '8', '９' => '9',   
                 'Ａ' => 'A', 'Ｂ' => 'B', 'Ｃ' => 'C', 'Ｄ' => 'D', 'Ｅ' => 'E',   
                 'Ｆ' => 'F', 'Ｇ' => 'G', 'Ｈ' => 'H', 'Ｉ' => 'I', 'Ｊ' => 'J',   
                 'Ｋ' => 'K', 'Ｌ' => 'L', 'Ｍ' => 'M', 'Ｎ' => 'N', 'Ｏ' => 'O',   
                 'Ｐ' => 'P', 'Ｑ' => 'Q', 'Ｒ' => 'R', 'Ｓ' => 'S', 'Ｔ' => 'T',   
                 'Ｕ' => 'U', 'Ｖ' => 'V', 'Ｗ' => 'W', 'Ｘ' => 'X', 'Ｙ' => 'Y',   
                 'Ｚ' => 'Z', 'ａ' => 'a', 'ｂ' => 'b', 'ｃ' => 'c', 'ｄ' => 'd',   
                 'ｅ' => 'e', 'ｆ' => 'f', 'ｇ' => 'g', 'ｈ' => 'h', 'ｉ' => 'i',   
                 'ｊ' => 'j', 'ｋ' => 'k', 'ｌ' => 'l', 'ｍ' => 'm', 'ｎ' => 'n',   
                 'ｏ' => 'o', 'ｐ' => 'p', 'ｑ' => 'q', 'ｒ' => 'r', 'ｓ' => 's',   
                 'ｔ' => 't', 'ｕ' => 'u', 'ｖ' => 'v', 'ｗ' => 'w', 'ｘ' => 'x',   
                 'ｙ' => 'y', 'ｚ' => 'z',   
                 '（' => '(', '）' => ')', '〔' => '[', '〕' => ']', '【' => '[',   
                 '】' => ']', '〖' => '[', '〗' => ']', '“' => '"', '”' => '"',   
                 '‘' => '\'', '’' => '\'', '｛' => '{', '｝' => '}', '《' => '<',   
                 '》' => '>',   
                 '％' => '%', '＋' => '+', '—' => '-', '－' => '-',  
                 '：' => ':', '。' => '.', '、' => '\\', '，' => ',',   
                 '；' => ';', '？' => '?', '！' => '!', '……' => '^', '‖' => '|',   
                 '｜' => '|', '〃' => '"', '·'=>'`','～'=>'~',
                 '　' => ' ','＄'=>'$','＠'=>'@','＃'=>'#','＾'=>'^','＆'=>'&','＊'=>'*',
                 '＂'=>'"');

    return strtr($str, $arr);   
}

//创建文件夹
function mkdirs($path, $mode = 0777)
{
    if(!file_exists($path))
    {
        mkdirs(dirname($path), $mode);
        mkdir($path,$mode);
    }
}

//设置cookie方法
function set_cookie($var, $value = '', $time = 0)
{
    $time = $time > 0 ? $time : ($value == '' ? PHP_TIME - 3600 : 0);
    $s = $_SERVER['SERVER_PORT'] == '443' ? 1 : 0;
    $var = COOKIE_PRE.$var;
    $_COOKIE[$var] = $value;
    if(is_array($value)){
        foreach($value as $k=>$v){
            $v = Crypt::encrypt($v);
            setcookie($var.'['.$k.']', $v, $time, COOKIE_PATH, COOKIE_DOMAIN, $s);
        }
    }else{
        $value = Crypt::encrypt($value);
        setcookie($var, $value, $time, COOKIE_PATH, COOKIE_DOMAIN, $s);
    }
}

//获取cookie方法
function get_cookie($var)
{
    $var = COOKIE_PRE.$var;
    $r = isset($_COOKIE[$var]) ? $_COOKIE[$var] : 0;

    if(!($r===0)){
        $r = Crypt::decrypt($r);
    }

    return $r;
}

//获取文件类型
function get_filetype($filename) {
    $extend = explode("." , $filename);
    return strtolower($extend[count($extend) - 1]);
}
function resizeImage($im, $dest, $maxwidth, $maxheight) {
    $img = getimagesize($im);
    switch ($img[2]) {
        case 1:
            $im = @imagecreatefromgif($im);
            break;
        case 2:
            $im = @imagecreatefromjpeg($im);
            break;
        case 3:
            $im = @imagecreatefrompng($im);
            break;
    }

    $pic_width = imagesx($im);
    $pic_height = imagesy($im);
    $resizewidth_tag = false;
    $resizeheight_tag = false;
    if (($maxwidth && $pic_width > $maxwidth) || ($maxheight && $pic_height > $maxheight)) {
        if ($maxwidth && $pic_width > $maxwidth) {
            $widthratio = $maxwidth / $pic_width;
            $resizewidth_tag = true;
        }

        if ($maxheight && $pic_height > $maxheight) {
            $heightratio = $maxheight / $pic_height;
            $resizeheight_tag = true;
        }

        if ($resizewidth_tag && $resizeheight_tag) {
            if ($widthratio < $heightratio)
                $ratio = $widthratio;
            else
                $ratio = $heightratio;
        }


        if ($resizewidth_tag && !$resizeheight_tag)
            $ratio = $widthratio;
        if ($resizeheight_tag && !$resizewidth_tag)
            $ratio = $heightratio;
        $newwidth = $pic_width * $ratio;
        $newheight = $pic_height * $ratio;

        if (function_exists("imagecopyresampled")) {
            $newim = imagecreatetruecolor($newwidth, $newheight);
            imagecopyresampled($newim, $im, 0, 0, 0, 0, $newwidth, $newheight, $pic_width, $pic_height);
        } else {
            $newim = imagecreate($newwidth, $newheight);
            imagecopyresized($newim, $im, 0, 0, 0, 0, $newwidth, $newheight, $pic_width, $pic_height);
        }

        imagejpeg($newim, $dest);
        imagedestroy($newim);
    } else {
        imagejpeg($im, $dest);
    }
}

//获取routeName
function getRouteName($i=1){
    $url = $_SERVER['REQUEST_URI'];
    $url = str_replace(strstr($url,'?'),'',$url);
    $aItems = explode('/',$url);
    $class = isset($aItems[$i])?$aItems[$i]:'';
    return $class;
}
function safe_replace($string)
{
    $string = str_replace('%20','',$string);
    $string = str_replace('%27','',$string);
    $string = str_replace('*','',$string);
    $string = str_replace('"','"',$string);
    $string = str_replace("'",'',$string);
    $string = str_replace("\"",'',$string);
    $string = str_replace('//','',$string);
    $string = str_replace(';','',$string);
    $string = str_replace('<','<',$string);
    $string = str_replace('>','>',$string);
    $string = str_replace('(','',$string);
    $string = str_replace(')','',$string);
    $string = str_replace("{",'',$string);
    $string = str_replace('}','',$string);
    return $string;
}

/**
 *curl请求
 */
function httpsRequest($url, $postData="")
{
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
    if($postData){
        curl_setopt($curl, CURLOPT_POST, 1);     //post数据
        curl_setopt($curl, CURLOPT_POSTFIELDS, $postData);    // post的变量
    }

    ob_start();
    $data = curl_exec($curl);
    $data= ob_get_clean();
    if (curl_errno($curl)) {
        return 'ERROR '.curl_error($curl);
    }
    curl_close($curl);
    return json_decode($data, true);
}