web开发中前、后端常用数据处理方法整理（集各家之言）
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2022-05-13 21:01:25
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1. [代码][PHP]代码
------------------------- 前端
/**
* 前端公共函数方法整理
* @author Weige
* 备注： 配合jqury.js 使用
* 2012-04
*/
//获取字符串长度
function getWordSize(str)
{
if(!str)
return null;
var length = 0;
var str = str;
var regDoub = /[^x00-xff]/g;
var regSingl = /[x00-xff]/g
var douL = str.match(regDoub);
var singL = str.match(regSingl)
if(douL){
length+=douL.length*2;
}
if(singL){
length+=singL.length;
}
length/=2;
length = Math.ceil(length);
return length;
}
//祛除前后空格
function trim(str)
{
return str.replace(/(^\s*)|(\s*$)/g, '');
}
//中文汉字编码判断
function isChinese(str)
{
var str = str.replace(/(^\s*)|(\s*$)/g,'');
if (!(/^[\u4E00-\uFA29]*$/.test(str)
&& (!/^[\uE7C7-\uE7F3]*$/.test(str))))
{
return false;
}
return true;
}
//手机判断
function isMobile(str)
{
if(/^1[345689]\d{9}/.test(str))
{
return true;
}
return false;
}
// oschina
//特殊字符转换
function htmlEncode(str)
{
var s = "";
if (str.length == 0) return "";
//s = s.replace(/ /g, " ");
s = str.replace(/&/g, "&");
s = s.replace(/</g, "<");
s = s.replace(/>/g, ">");
s = s.replace(/\'/g, "'");
s = s.replace(/\"/g, """);
s = s.replace(/\n/g, "<br>");
return s;
}
function htmlDecode(str)
{
var s = "";
if (str.length == 0) return "";
s = str.replace(/>/g, "&");
s = s.replace(/</g, "<");
s = s.replace(/>/g, ">");
s = s.replace(/ /g, " ");
s = s.replace(/'/g, "\'");
s = s.replace(/"/g, "\"");
s = s.replace(/<br>/g, "\n");
return s;
}
//使用ajax提交数据
function ajaxPost(the_url,the_param,succ_callback)
{
$.ajax({
type : 'POST',
cache : false,
url : the_url,
data : the_param,
success : succ_callback
});
}
//使用ajax获取数据
function ajaxGet(the_url,succ_callback,error_callback)
{
$.ajax({
type : 'GET',
cache : true,
url : the_url,
success : succ_callback,
error : error_callback
});
}
//发送json格式数据
function ajaxPostJson(the_url,data_pro,succ_callback,error_callback)
{
$.ajax({
async : false,//同步更新
type : 'post',
dataType : 'json',
data : data_pro,
url : the_url,
success : succ_callback,
error : error_callback
});
}
function real_len(name)
{
return (name.replace(/[^\x00-\xff]/g,"**").length);
}
function is_email(email)
{
var reg=/^\s*([A-Za-z0-9_-]+(\.\w+)*@(\w+\.)+\w{2,3})\s*$/;
return reg.test(email);
}
function is_number(name)
{
var reg = /^\d+$/g;
return reg.test(name);
}
function is_pwd(name)
{
var reg = /^[A-Za-z@0-9_-]+$/g;
return reg.test(name);
}
---------------------------------后端
<?php
/**
* Weige
* 2012-05
* */
/**
* 唯一名字
* */
function get_unique_name($srand_id=0)
{
$id = $srand_id?$srand_id:mt_rand(0,99999999);
$index = 'z6OmlGsC9xqLPpN7iw8UDAb4HIBXfgEjJnrKZSeuV2Rt3yFcMWhakQT1oY5v0d';
$base = 62;
$out = "";
for ( $t = floor( log10( $id ) / log10( $base ) ); $t >= 0; $t-- )
{
$a = floor( $id / pow( $base, $t ) );
$out = $out . substr( $index, $a, 1 );
$id = $id - ( $a * pow( $base, $t ) );
}
return $out;
}
/**
* 短链接密钥
* */
function url_key($url,$key="wei爱微博")
{
$x = sprintf("%u", crc32($key.$url));
$show = '';
while($x> 0)
{
$s = $x% 62;
if($s> 35)
$s = chr($s+61);
elseif($s> 9 && $s<=35)
$s = chr($s+ 55);
$show.= $s;
$x = floor($x/62);
}
return $show;
}
/**
* 标签key
* */
function tag_key($tag,$key="wei爱话题")
{
$tag = str_replace(" ", "", $tag);
$tag.= $key;
$hash = md5($tag);
$hash = $hash[0] | ($hash[1] <<8 ) | ($hash[2] <<16) | ($hash[3] <<24) | ($hash[4] <<32) | ($hash[5] <<40) | ($hash[6] <<48) | ($hash[7] <<56);
return $hash % 99999999;
}
/**
* 过滤非法标签
* */
function strip_selected_tags($str,$disallowable="<script><iframe><style><link>")
{
$disallowable = trim(str_replace(array(">","<"),array("","|"),$disallowable),'|');
$str = str_replace(array('<', '>'),array('<', '>'),$str);
$str = preg_replace("~<({$disallowable})[^>]*>(.*?<\s*\/(\\1)[^>]*>)?~is",'$2',$str);
return $str;
}
/**
* 替换或转义标签
* */
function convert_tags($str)
{
if($str)
// $str = str_replace(array('&','<', '>',"'",'"'),array('&','<', '>',''','"'),$str);
$str = str_replace(array('<', '>',"'",'"'),array('<', '>',''','"'),$str);
return $str;
}
// function jstrpos($haystack, $needle, $offset = null)
// {
// $needle = trim($needle);
// $jstrpos = false;
// if(function_exists('mb_strpos'))
// {
// $jstrpos = mb_strpos($haystack, $needle, $offset, self::$charset);
// }
// elseif(function_exists('strpos'))
// {
// $jstrpos = strpos($haystack, $needle, $offset);
// }
// return $jstrpos;
// }
/**
* 检查是否为一个http开头并带有.com的url地址
**/
function is_http($url)
{
if(filter_var($url, FILTER_VALIDATE_URL))
return true;return false;
}
/**
* 发送一个http请求
* @param $url 请求链接
* @param $method 请求方式
* @param array $vars 请求参数
* @param $time_out 请求过期时间
* @return JsonObj
*/
function get_curl($url, array $vars=array(), $method = 'post')
{
$method = strtolower($method);
if($method == 'get' && !empty($vars))
{
if(strpos($url, '?') === false)
$url = $url . '?' . http_build_query($vars);
else
$url = $url . '&' . http_build_query($vars);
}
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
if ($method == 'post')
{
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $vars);
}
$result = curl_exec($ch);
if(!curl_errno($ch))
{
$result = trim($result);
}
else
{
$result = '[error：1]';
}
curl_close($ch);
return $result;
}
/**
* 获取客户端ip
* */
function getIp()
{
if (isset($_SERVER['HTTP_CLIENT_IP']))
{
return $_SERVER['HTTP_CLIENT_IP'];
}
else if (isset($_SERVER['HTTP_X_FORWARDED_FOR']))
{
return $_SERVER['HTTP_X_FORWARDED_FOR'];
}
else if (isset($_SERVER['REMOTE_ADDR']))
{
return $_SERVER['REMOTE_ADDR'];
}
return '0.0.0';
}
/**
* 图片大小验证器
* $_FILES['file']数组
*
* 只支持 jpg png gif 格式 默认5M
* */
function check_img($file,$limitSize=5242880)
{
$type_maping = array(1=>'image/gif', 2=>'image/jpeg', 3=>'image/png',4=>'image/pjpeg',5=>'image/x-png',6=>'image/jpg');
if($file['size']>$limitSize)
{
$rs['error'] = '1';
$rs['msg'] = '图片超过规定大小!';
}
elseif($file['error']==4)
{
$rs['error'] = '1';
$rs['msg'] = '图片文件损害!';
}
elseif($file['size']==0)
{
$rs['error'] = '1';
$rs['msg'] = '空图片或者超过规定大小';
}
elseif( !in_array($file['type'],$type_maping) )
{
$rs['error'] = '1';
$rs['msg'] = '图片类型错误!';
}
else
{
$rs['error'] = 'no';
$rs['msg'] = 'success';
}
return $rs;
}
/**
* 递归方式的对变量中的特殊字符进行转义以及过滤标签
*/
function addslashes_deep($value)
{
if (empty($value))return $value;
//Huige 过滤html标签,防止sql注入
return is_array($value) ? array_map('addslashes_deep', $value) : strip_tags(addslashes($value));
}
/**
* @param mix $value
* @return mix
*/
function stripslashes_deep($value)
{
if (empty($value))return $value;
return is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value);
}
/**
* 以新浪微博的字数统计方式统计字数（简单版）
* 中文算1个，英文算0.5个，全角字符算1个，半角字符算0.5个。
* @param string $string
* @return integer
*/
function strlen_weibo($string)
{
if(is_string($string))
{
$string=trim(trim($string,' '));
return (strlen($string) + mb_strlen($string,'UTF-8')) / 4;
}
return false;
}
/**
* 截取指定长度的字符串，超出部分用 ..替换
* @param string $text
* @param int $length
* @param string $replace
* @param string $encoding
*/
function substr_format($text, $length, $replace='..', $encoding='UTF-8')
{
if ($text && mb_strlen($text, $encoding)>$length)
{
return mb_substr($text, 0, $length, $encoding).$replace;
}
return $text;
}
/**
*
* 字符编码转换
*
* */
function xwb_iconv($source, $in, $out)
{
$in = strtoupper($in);
$out = strtoupper($out);
if ($in == "UTF8"){
$in = "UTF-8";
}
if ($out == "UTF8"){
$out = "UTF-8";
}
if($in==$out){
return $source;
}
if(function_exists('mb_convert_encoding')) {
return mb_convert_encoding($source, $out, $in );
}elseif (function_exists('iconv')) {
return iconv($in,$out."//IGNORE", $source);
}
return $source;
}
/**
* Created: 2010-10-28
*
* 截取一定长度的字符串
* @Author guoliang1
*
***************************************************/
function cut_string($str, $len)
{
// 检查长度
if (mb_strwidth($str, 'UTF-8')<=$len)
{
return $str;
}
// 截取
$i = 0;
$tlen = 0;
$tstr = '';
while ($tlen < $len)
{
$chr = mb_substr($str, $i, 1, 'UTF-8');
$chrLen = ord($chr) > 127 ? 2 : 1;
if ($tlen + $chrLen > $len) break;
$tstr .= $chr;
$tlen += $chrLen;
$i ++;
}
if ($tstr != $str)
{
$tstr .= '...';
}
return $tstr;
}
/**
* Created: 2010-10-28
*
* 防止XSS攻击,htmlspecialchars的别名
*
***************************************************/
function escape($str, $quote_style = ENT_COMPAT )
{
return htmlspecialchars($str, $quote_style);
}
/**
* 格式化时间
*
* */
function wb_date_format($time,$format='m月d日 H:i')
{
$now = time();
$t = $now - $time;
if($t >= 3600)
{
if(date('Y')==date('Y',$time))
$time =date($format,$time);
else
$time =date('Y年m月d日 H:i',$time);
}
elseif ($t < 3600 && $t >= 60)
$time = floor($t / 60) . "分钟前";
else
$time = "刚刚";
return $time;
}
function isChinese($string)
{
if(preg_match("/^[\x{4e00}-\x{9fa5}]+$/u",$string))
return true;
return false;
}
function isMobile($mobile)
{
if(preg_match("/^1[345689]\d{9}$/", $mobile))
return true;
return false;
}
function dayToWeek($time)
{
$time = empty($time) ? TIME : $time;
$date[0] = '周日';
$date[1] = '周一';
$date[2] = '周二';
$date[3] = '周三';
$date[4] = '周四';
$date[5] = '周五';
$date[6] = '周六';
return $date[Date('w',$time)];
}
/**
* 检测是否为邮箱
* @param $val
* @param $domain
* @return boolean
*/
function is_email($val,$domain="")
{
if(!$domain)
{
if( preg_match("/^[a-z0-9-_.]+@[\da-z][\.\w-]+\.[a-z]{2,4}$/i", $val) )
return TRUE;
return FALSE;
}
if( preg_match("/^[a-z0-9-_.]+@".$domain."$/i", $val) )
return TRUE;
return FALSE;
}
// junz先生
//http://www.oschina.net/code/snippet_162279_7186
//可逆加密
function extend_decrypt($encryptedText,$key)
{
$cryptText = base64_decode($encryptedText);
$ivSize = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
$iv = mcrypt_create_iv($ivSize, MCRYPT_RAND);
$decryptText = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, $cryptText, MCRYPT_MODE_ECB, $iv);
return trim($decryptText);
}
//http://www.oschina.net/code/snippet_162279_7186
//可逆解密
function extend_encrypt($plainText,$key)
{
$ivSize = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
$iv = mcrypt_create_iv($ivSize, MCRYPT_RAND);
$encryptText = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $plainText, MCRYPT_MODE_ECB, $iv);
return trim(base64_encode($encryptText));
}
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