Commonly used functions in php

这篇文章介绍的内容是关于php的常用函数，有着一定的参考价值，现在分享给大家，有需要的朋友可以参考一下
<?php
/** 
* @StrHidtel       字符串打码 
* =========================== 
* @Str             字符串 
* @Percen          百分比 
* @Count           次数 
* @ToStr           替换的字符串 
*/
function StrHidtel($Str, $Percen = 30, $Count = 1, $ToStr = "0")
{
    // 判断字符串长度    
    $StrLen = mb_strlen($Str, "UTF-8");    
    // 计算中间百分比值    
    $MaxLen = ceil($StrLen * $Percen / 100);    
    $StartLen = $StrLen - $MaxLen;    
    // 生成同等长度的*    
    $Blurry = str_repeat($ToStr, $MaxLen);    
    // 截取要替换的字符串    
    $ShifText = mb_substr($Str, $StartLen / 2, $MaxLen, "UTF-8");    
    // 替换字符串    
    return str_replace($ShifText, $Blurry, $Str, $Count);
    }
    /** * @SaveLog         存储日志 
    * ========================= 
    * @Text            储存内容 
    * @Type            类型 
    */
    function SaveLog ($Type, $Text)
    {    
    // 初始化    
    date_default_timezone_set("PRC");    
    $day=date("Y-m-d",time());    
    $Time = "[".date("Y-m-d H:i:s",time())."]";    
    $hade="[".$_SERVER['REQUEST_URI']."]";    
    $LogPath = './';    
    $FilePath = $LogPath.$Type.$day.".log";    
    // 判断文件是否存在    
    $f = fopen ($FilePath, "ab+");    
    // 写入    
    fwrite($f, "$Time-$hade-$Text"."\r\n");    
    fclose($f);}/** * @GetIP 获取客户端IP 
    */
    function getIP()
    {    
    if (getenv('HTTP_CLIENT_IP'))    
    {        
    $ip = getenv('HTTP_CLIENT_IP');    
    }    
    elseif (getenv('HTTP_X_FORWARDED_FOR'))    
    {        
    $ip = getenv('HTTP_X_FORWARDED_FOR');    
    }    
    elseif (getenv('HTTP_X_FORWARDED'))    
    {        
    $ip = getenv('HTTP_X_FORWARDED');    
    }    
    elseif (getenv('HTTP_FORWARDED_FOR'))    
    {        
    $ip = getenv('HTTP_FORWARDED_FOR');    
    }    
    elseif (getenv('HTTP_FORWARDED'))    
    {        
    $ip = getenv('HTTP_FORWARDED');    
    }    
    else    
    {        
    $ip = $_SERVER['REMOTE_ADDR'];    
    }    
    preg_match("/^(\d|\.)+$/si", $ip, $isip);   
     if($isip == NULL)    
     {        
     F404("系统无法验证您的身份:$ip");        
     exit;    
     }    
     return $ip;
     }
     /** 
     * @IntIp 获取客户端的Int型IP 
     */
     function IntIp()
     {    
     // 转换为数字IP    
     $IntIP = ip2long(getIP());    
     // 判断是否转换失败    
     if ($IntIP) {        
     return $IntIP;    
     } else {       
      return false;    
      }}
      /** 
      * @OrderGenerate   订单号生成 
      * =========================== 
      * @UserID          用户ID 
      * @Type            订单类型 1:充值, 2:提现, 或获取具体类型 
      * @ID              相关ID 
      */
      function OrderGenerate($UserID, $Type, $ID = "0")
      {    
      // 初始化    
      $Time = time();   
       $IP = str_pad(abs(IntIp()), 10, "0");    
       // 生成随机数3位    
       $RandSub = RandomStr(3, 1);    
       // 填补用户ID    
       $UserText = str_pad($UserID, 10, "0", STR_PAD_LEFT);    
       // 初始化8    
       $OrderID = date("Ymd", $Time);    
       // 截取最后一位相关ID9    
       $OrderID .= substr($ID, -1);    
       // 填补类型ID14    
       $OrderID .= str_pad($Type, 5, "0");    
       // 填充随机数17    
       $OrderID .= $RandSub;    
       // 填充IP前半段19    
       $OrderID .= mb_substr($IP, 3, 2);    
       // 填补时间戳后5位24    
       $OrderID .= mb_substr($Time, 4, 5);    
       // 填充IP前后段29    
       $OrderID .= mb_substr($IP, 7, 3);    
       // 截取用户后4位ID31    
       $OrderID .= mb_substr($UserText, 6, 4);   
      // 输出    
      return $OrderID;
      }
      /** 
      * @IsString    判断变量是否存在且为字符串 
      * ======================================= 
      * @Variable    实际传入变量 Array 
      * @KeyName     键名 Array 
      * @Exclude     排除 
      */
      function IsString ($IsString, $KeyName, $Exclude = array())
      {    
      // 判断条数是否相等    
      if((is_array($IsString) && is_array($KeyName) && count($IsString) == count($KeyName)) 
      || (count($IsString) == (count($KeyName) + count($Exclude))))    
      {       
       // 循环实际传入变量        
       foreach($KeyName as $List => $As)        
       {            
       // 判断是否存在于传入之中,且为字符串           
        if(!(isset($IsString[$As]) && (is_string($IsString[$As]) || is_int($IsString[$As]))))            
        {                if (!in_array($As, $Exclude))                
        {                    return false;                
        }           
         }       
          }        
          // 无误输出        
          return true;    
          }    else    {        
          return false;    
          }
          }
          $date=['a'=>123,'b'=>456,'c'=>789,'d'=>'<script>alert(111111)</script>'];
          /** 
          * @IsUtf8 编码转换 
          * @Str 传入字符串 
          */
          function IsUtf8($Str)
          {    
          $encode = mb_detect_encoding($Str, array("ASCII",'UTF-8',"GB2312","GBK","BIG5"));    
          if($encode != 'UTF-8')    {        
          $Str = iconv($encode,"UTF-8",$Str);;    }    
          return $Str;}
          /********************php验证身份证号码是否正确函数*********************/
          function is_idcard( $id ){    $id = strtoupper($id);    
          $regx = "/(^\d{15}$)|(^\d{17}([0-9]|X)$)/";    $arr_split = array();    
          if(!preg_match($regx, $id))    {        return FALSE;    }    
          if(15==strlen($id)) //检查15位    {        $regx = "/^(\d{6})+(\d{2})+(\d{2})+(\d{2})+(\d{3})$/";        
          @preg_match($regx, $id, $arr_split);        
          //检查生日日期是否正确        
          $dtm_birth = "19".$arr_split[2] . '/' . $arr_split[3]. '/' .$arr_split[4];        if(!strtotime($dtm_birth))        {            
          return FALSE;        } else {            return TRUE;        }    }    else      
          //检查18位    
          {        
          $regx = "/^(\d{6})+(\d{4})+(\d{2})+(\d{2})+(\d{3})([0-9]|X)$/";        @preg_match($regx, $id, $arr_split);        
          $dtm_birth = $arr_split[2] . '/' . $arr_split[3]. '/' .$arr_split[4];        
          if(!strtotime($dtm_birth)) //检查生日日期是否正确        {            return FALSE;        }        else        {            
          //检验18位身份证的校验码是否正确。            
          //校验位按照ISO 7064:1983.MOD 11-2的规定生成，X可以认为是数字10。            
          $arr_int = array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);            
          $arr_ch = array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');            
          $sign = 0;            for ( $i = 0; $i < 17; $i++ )            {               
           $b = (int) $id{$i};                $w = $arr_int[$i];                $sign += $b * $w;            }            
           $n = $sign % 11;            $val_num = $arr_ch[$n];            
           if ($val_num != substr($id,17, 1))            {                return FALSE;            } //phpfensi.com            
           else            {                return TRUE;            }        }    }}

                                     

Related recommendations:

Study notes for php functions

The above is the detailed content of Commonly used functions in php. For more information, please follow other related articles on the PHP Chinese website!