php 个人函数库

crypt.php

<?php
function pkcs5_pad ($text, $blocksize) {
        $pad = $blocksize - (strlen($text) % $blocksize);
        return $text . str_repeat(chr($pad), $pad);
    }
  function myCrypt($input,$key)
 {
         $size = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB);
        $input =pkcs5_pad($input, $size);
        $td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, ‘‘, MCRYPT_MODE_ECB, ‘‘);
        $iv = mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
        mcrypt_generic_init($td, $key, $iv);
        $data = mcrypt_generic($td, $input);
        mcrypt_generic_deinit($td);
        mcrypt_module_close($td);
        $data = base64_encode($data);
        return $data;
 }
 function myDecrypt($str,$key)
 {
      $decrypted= mcrypt_decrypt(
        MCRYPT_RIJNDAEL_128,
        $key,
        base64_decode($str),
        MCRYPT_MODE_ECB
    );  

        $dec_s = strlen($decrypted);
        $padding = ord($decrypted[$dec_s-1]);
        $decrypted = substr($decrypted, 0, -$padding);
        return $decrypted;
 }
?>

Common.php

<?php

//DES加密类库
include ‘crypt.php‘;
//Lee便携式类库
include ‘Lee.php‘;

function POST($get_key)
{ 

    $str=$_POST[$get_key];
    return Validata($str);
}

function GET($get_key)
{
    $str=$_GET[$get_key];
    return Validata($str);
}

function Validata($str)
{
    //如果值为空，那么返回空字符串
    if(!isset($str)) return "";
    //过滤html标记
    $farr = array("/<(\/?)(script|i?frame|style|html|body|title|link|meta|\?|\%)([^>]*?)>/isU");
    //过滤类似 <script>  <style> <object>  <meta> <iframe> 等
    $str = preg_replace($farr,"",$str);
    //对单引号、双引号等预定义字符 前面加上反斜杠 如‘变成\‘
    $str=addslashes($str);
    //过滤敏感词汇
    $str=str_replace(explode(",", UNSAFE_WORD),"***",$str);
    //返回结果
    return trim($str);
}

function IP()
{
    if(!empty($_SERVER["HTTP_CLIENT_IP"])){
        $cip = $_SERVER["HTTP_CLIENT_IP"];
    }
    elseif(!empty($_SERVER["HTTP_X_FORWARDED_FOR"])){
        $cip = $_SERVER["HTTP_X_FORWARDED_FOR"];
    }
    elseif(!empty($_SERVER["REMOTE_ADDR"])){
        $cip = $_SERVER["REMOTE_ADDR"];
    }
    else{
        $cip = "";
    }
    return $cip;
}

function set_cache($key,$value,$expireTime)
{
    $m = new Memcache();
    $m->connect(CACHE_IP,CACHE_PORT);
    $m->set($key,$value,0,$expireTime);
}

function get_cache($key)
{
    $m = new Memcache();
    $m->connect(CACHE_IP,CACHE_PORT);
    return $m->get($key);
}

function load_model($modelName)
{
    return new Model($modelName);
}

function load_lib($folderName,$touchName)
{

    require_once ‘Library/‘.$folderName.‘/‘.$touchName;
}

?>

Lee.php

<?php

function echo_para($split,$a,$b=0,$c=0,$d=0,$e=0,$f=0,$g=0,$h=0,$i=0,$j=0,$k=0,$l=0,$m=0,$n=0)
{
    //获取参数总数
    $n = func_num_args();
    $str = "";
    for($i = 1;$i< $n;$i++)
    {
        $str .= func_get_arg($i) . $split;
    }
    return $str;
}

function AJAX($Msg,$Result,$Status)
{
    $arr = array("Msg" => $Msg,"Result" => $Result,"Status" => $Status);
    exit(json_encode($arr));
}

function WriteLog($msg,$module = null,$logLevel = "DEBUG")
{
    $filepath = "Log/";
    if(!is_dir($filepath)) mkdir($filepath,‘0777‘);
    $MyLogFile = @fopen($filepath.date("Y-m-d").".txt",‘a+‘);
    $time = date("Y-m-d H:i:s");
    if(isset($module)){$module =  sprintf("\r\n归属模块：".$module."\r\n");}
    $logLine = "\r\n-------------------------------  $time -------------------------------\r\n";
    $logLine .= $module;
    $logLine .= "\r\n异常信息：$msg\r\n";
    $logLine .= "\r\n错误等级：$logLevel\r\n";
    fwrite($MyLogFile,$logLine);
}

//警告
function alert($str)
{
    echo "<script type=‘text/javascript‘>alert(‘".$str."‘)</script>";

}

//页面跳转
function href($url)
{
    echo "<script type=‘text/javascript‘>window.location.href(‘".$url."‘)</script>";
}

function Sub_截取字符串如果超出某位就省略号($str,$num)
{
    if(mb_strlen($str) > $num)
    {
        $str = substr($str,0,$num)."...";
    }
    return $str;
}

function mkFolder($path)
{
    if(!is_readable($path))
    {
        is_file($path) or mkdir($path);
    }
}

?>