PHP封装curl的调用接口及常用函数详解
如下所示：
=$length){
$next_str="…";
}else{
$next_str="";
}
if(function_exists("mb_substr")){
if($suffix)
//returnmb_substr($str,$start,$length,$charset)."…";
returnmb_substr($str,$start,$length,$charset).$next_str;
else
returnmb_substr($str,$start,$length,$charset);
}elseif(function_exists('iconv_substr')){
if($suffix)
//returniconv_substr($str,$start,$length,$charset)."…";
returniconv_substr($str,$start,$length,$charset).$next_str;
else
returniconv_substr($str,$start,$length,$charset);
}
$re['utf-8']="/[x01-x7f]|[xc2-xdf][x80-xbf]|[xe0-xef][x80-xbf]{2}|[xf0-xff][x80-xbf]{3}/";
$re['gb2312']="/[x01-x7f]|[xb0-xf7][xa0-xfe]/";
$re['gbk']="/[x01-x7f]|[x81-xfe][x40-xfe]/";
$re['big5']="/[x01-x7f]|[x81-xfe]([x40-x7e]|xa1-xfe])/";
preg_match_all($re[$charset],$str,$match);
$slice=join("",array_slice($match[0],$start,$length));
if($suffix)return$slice."…";
if(!$suffix)return$slice;
return$slice;
}
/**
*用户名*隐藏
*$str="如来神掌";
*echocut_str($str,1,0).'**'.cut_str($str,1,-1);
*输出：如**掌
*/
functioncut_str($string,$sublen,$start=0,$code='UTF-8')
{
if($code=='UTF-8')
{
$pa="/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|\xe0[\xa0-\xbf][\x80-\xbf]|[\xe1-\xef][\x80-\xbf][\x80-\xbf]|\xf0[\x90-\xbf][\x80-\xbf][\x80-\xbf]|[\xf1-\xf7][\x80-\xbf][\x80-\xbf][\x80-\xbf]/";
preg_match_all($pa,$string,$t_string);
if(count($t_string[0])-$start>$sublen)returnjoin('',array_slice($t_string[0],$start,$sublen));
returnjoin('',array_slice($t_string[0],$start,$sublen));
}
else
{
$start=$start*2;
$sublen=$sublen*2;
$strlen=strlen($string);
$tmpstr='';
for($i=0;$i<$strlen;$i++)
{
if($i>=$start&&$i<($start+$sublen))
{
if(ord(substr($string,$i,1))>129)
{
$tmpstr.=substr($string,$i,2);
}
else
{
$tmpstr.=substr($string,$i,1);
}
}
if(ord(substr($string,$i,1))>129)$i++;
}
//if(strlen($tmpstr)<$strlen)$tmpstr.="...";
return$tmpstr;
}
}
/*
*解决json_encode转换中文的问题，在php5.4下json_encode本身解决的这个问题
*/
functionunescapedUnicode($match)
{
returnmb_convert_encoding(pack('H*',$match[1]),'UTF-8','UCS-2BE');
}
/**
*截取手机号
*demo:13112345678
*return:131****5678
*/
functionhidtel($phone){
$IsWhat=preg_match('/(0[0-9]{2,3}[-]?[2-9][0-9]{6,7}[-]?[0-9]?)/i',$phone);//固定电话
if($IsWhat==1){
returnpreg_replace('/(0[0-9]{2,3}[-]?[2-9])[0-9]{3,4}([0-9]{3}[-]?[0-9]?)/i','$1****$2',$phone);
}else{
returnpreg_replace('/(1[358]{1}[0-9])[0-9]{4}([0-9]{4})/i','$1****$2',$phone);
}
}
//获取IP
functiongetIp()
{
if(isset($_SERVER)){
if(isset($_SERVER["HTTP_X_FORWARDED_FOR"])){
$realip=$_SERVER["HTTP_X_FORWARDED_FOR"];
}elseif(isset($_SERVER["HTTP_CLIENT_IP"])){
$realip=$_SERVER["HTTP_CLIENT_IP"];
}else{
$realip=$_SERVER["REMOTE_ADDR"];
}
}else{
if(getenv("HTTP_X_FORWARDED_FOR")){
$realip=getenv("HTTP_X_FORWARDED_FOR");
}elseif(getenv("HTTP_CLIENT_IP")){
$realip=getenv("HTTP_CLIENT_IP");
}else{
$realip=getenv("REMOTE_ADDR");
}
}
return$realip;
}
//把汉字转换为数字
functiongetUnicodeFromOneUTF8($word)
{
//获取其字符的内部数组表示，所以本文件应用utf-8编码!
//$word=iconv("gb2312","utf-8",$word);
if(is_array($word))
$arr=$word;
else
$arr=str_split($word);
//此时，$arr应类似array(228,189,160)
//定义一个空字符串存储
$bin_str='';
//转成数字再转成二进制字符串，最后联合起来。
foreach($arras$value)
$bin_str.=decbin(ord($value));
//此时，$bin_str应类似111001001011110110100000
//正则截取
$bin_str=preg_replace('/^.{4}(.{4}).{2}(.{6}).{2}(.{6})$/','$1$2$3',$bin_str);
//此时，$bin_str应类似0100111101100000,如果是汉字"你"
returnbindec($bin_str);
//返回类似20320，汉字"你"
//returndechex(bindec($bin_str));
//如想返回十六进制4f60，用这句
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