Several commonly used operating functions for php strings

(*-*)浩
Release: 2023-02-23 22:12:02
Original
2697 people have browsed it

Several commonly used operating functions for php strings

String related operations

Convert string type

strval($str); //转换成字符串类型
floatval($str);//转换成浮点型
intval($str); //转换成整型
Copy after login

2 , Case conversion (Recommended learning: PHP programming from entry to proficiency)

strtolower($str); //全部转换成小写
strtoupper($str); //全部转换成大写
Copy after login

3. Convert string to timestamp

strtotime($str); //时间格式的字符串转换成整型时间戳
      //注意设置时区 否则会有 8小时误差
Copy after login

4. Remove HTML and PHP tags

strip_tags($str [,$tags]);//去除不含$tags里标签外的所有标签
Copy after login

5. Convert ascii to number Number to ascii

chr(int $ascii); //数字转换成ascii
ord(string $str); //返回$str第一个字符的ascii值
Copy after login

6. Encoding of json And decoding

json_encode($obj/$arr/$str...);//编码成json 格式的字符串
json_decode($jsonstr [,$assoc=true]); //解码成对象
             //当$assoc=true 时 返回数组 而非对象
Copy after login

7, line break conversion

nl2br($str); //字符串 $str 所有新行之前插入&#39;<br/>&#39;
Copy after login

8, array conversion to string, string conversion to array

implode($arr,$glue);//将一维数组转换为字符串
explode();//字符串转换为数组
Copy after login

9. Thousand-digit split formatting

string number_format ( float $number [, int $decimals = 0 ] )
string number_format ( float $number , int $decimals = 0 , string $dec_point = &#39;.&#39; , string $thousands_sep = &#39;,&#39; )
 @param  $number 你要格式化的数字 
     $decimals 要保留的小数位数 
     $dec_point 指定小数点显示的字符 
     $thousands_sep 指定千位分隔符显示的字符
Copy after login

10. Remove spaces

trim(string $str [,string $charlist ]); //去左右字符
ltrim(string $str [,string $charlist ]); //去左字符
rtrim(string $str [,string $charlist ]); //去右字符
Copy after login

This function deletes the blank characters at the end of str and returns .

The above is the detailed content of Several commonly used operating functions for php strings. For more information, please follow other related articles on the PHP Chinese website!

Related labels:
php
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!