php方法工具函数合集（2020年10月7日）

php 工具类

参考网址：https://blog.csdn.net/column/details/php-class.html

1 php 生成唯一requestid 类 【v>7.1】

https://blog.csdn.net/fdipzone/article/details/79939431

2 php生成带logo二维码

https://blog.csdn.net/fdipzone/article/details/79689055

3 php 基于redis使用令牌桶算法实现流量控制

https://blog.csdn.net/fdipzone/article/details/79352685

5 php好用的组件列表

https://github.com/ziadoz/awesome-php

1 请求，时间格式化，压缩，ftp 扩展包

https://segmentfault.com/a/1190000016004756#articleHeader1

1）获取数组维度

function arrayLevel ($arr ){  $al = array( 0 );

  $this -> aL( $arr ,$al );

  return max ($al );}

function aL ($arr , &$al , $level= 0 ){
if ( is_array( $arr )){
$level ++ ;
$al [] = $level ;
foreach ( $arr as $v ){
$this-> aL ($v , $al, $level );}}}

2）在任一指定的键值后插入元素

function insertAnyelement ($arr , $key, $varr ){

  $keys = array_keys( $arr );

  $kindex = array_search( $key ,$keys );

  $arr1 = array_slice( $arr ,0 ,( $kindex+ 1 ));

  $arr2 = array_slice( $arr ,($kindex + 1));

  $rs= array_merge ($arr1 , $varr, $arr2 );

  return $rs ;}

3）截取中文字符串

function chinesesubstr($str,$start,$len){

        $strlen=$start+$len;

        for($i=0;$i<$strlen;$i++){

            if(ord(substr($str,$i,1))>0xa0){

                $tmpstr.=substr($str,$i,2);                $i++;

            }else{                $tmpstr.=substr($str,$i,1);            }

            return $tmpstr;        }    }

4）去除文本中的html代码

function cutstr_html($string, $sublen)   

 {  $string = strip_tags($string);

  $string = preg_replace ('/ /is', '', $string);

  $string = preg_replace ('/ |　/is', '', $string);

  $string = preg_replace ('/&nbsp;/is', '', $string);

 

  preg_match_all("/[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]/", $string, $t_string);   

  if(count($t_string[0]) - 0 > $sublen) $string = join('', array_slice($t_string[0], 0, $sublen).'...');   

  else $string = join('', array_slice($t_string[0], 0, $sublen)); 

  return $string; }

5) 生成随机码及加密函数

function password($password)

{  /**后续整强有力的加密函数*/

  return md5('Q' . $password . 'W');}

$token = password(uniqid(rand(), true));

$salt = random(10);

$identifier = password($user['uid'] . md5($user['user'] . $salt));

$auth = $identifier . ',' . $token;

判断数据的编码，同时转为统一的utf8 编码

$encode = mb_detect_encoding(trim($v), array("ASCII",'UTF-8',"GB2312","GBK",'BIG5'));

$model[$k] = iconv($encode, 'utf-8', trim($v));

http://blog.csdn.net/jj88888/article/details/47129929

 

获取中文汉字长度

mb_strlen($name,"utf-8"); 【需开启php_mbstring扩展】

http://blog.csdn.net/u012116457/article/details/42536039