php去掉字符串中的（部分）空格

小灰灰 2023-02-08 15:58 208阅读 0赞

一个根据时间段查询数据的接口，勾选了时间范围，然而每次都查不到数据。然后，F12看发送的url请求，发现url中带有一些%20，如：“time=%202020-07-24%2000:00:00,%202020-07-25%2000:00:00”。  
![在这里插入图片描述][20200724133939934.png]  
而打印出来的time是比较正常的：

2020-07-24 00:00:00, 2020-07-25 00:00:00

说明地址中存在的空格被转码成了%20。因为默认传的时间字符串为“2020-07-24 00:00:00,2020-07-25 00:00:00”，所以一直查不出来。。。

<?php
    /** 思路： (1)截取逗号后面的子串（如“ 2020-07-25 00:00:00”），去掉该字符串左边的空格； (2)然后用这个字符串替换原来的子串； (3)把$time首部的空格去掉，得到“2020-07-24 00:00:00,2020-07-25 00:00:00”。 */
    $time = " 2020-07-24 00:00:00, 2020-07-25 00:00:00";
    //$time = trim($time);
    echo $time,"\n";
    $time2 = ltrim(substr($time,stripos($time, ',')+1));
    echo $time2,"\n";
    $time3 = trim(substr_replace($time, ltrim(substr($time,stripos($time, ',')+1)),stripos($time, ',')+1));
    echo $time3;
    ?>

2020-07-24 00:00:00, 2020-07-25 00:00:00
    2020-07-25 00:00:00
    2020-07-24 00:00:00,2020-07-25 00:00:00

**参考文章链接：**

*  [https://blog.csdn.net/Claire\_cz/article/details/78983868][https_blog.csdn.net_Claire_cz_article_details_78983868]
 *  [https://www.cnblogs.com/chenwenbiao/archive/2011/08/21/2148008.html][https_www.cnblogs.com_chenwenbiao_archive_2011_08_21_2148008.html]
 *  [https://www.jb51.net/article/30321.htm][https_www.jb51.net_article_30321.htm]

[20200724133939934.png]: /images/20230208/d3df2a179172406e9038af983adffccf.png
[https_blog.csdn.net_Claire_cz_article_details_78983868]: https://blog.csdn.net/Claire_cz/article/details/78983868
[https_www.cnblogs.com_chenwenbiao_archive_2011_08_21_2148008.html]: https://www.cnblogs.com/chenwenbiao/archive/2011/08/21/2148008.html
[https_www.jb51.net_article_30321.htm]: https://www.jb51.net/article/30321.htm