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Homephp教程php手册PHP使用trim函数去除字符串左右空格及特殊字符实例,trim特殊字符

PHP使用trim函数去除字符串左右空格及特殊字符实例,trim特殊字符

本文实例讲述了PHP使用trim函数去除字符串左右空格及特殊字符的方法。分享给大家供大家参考,具体如下:

PHP中trim()函数定义如下

trim(string,charlist)

参数说明如下:

string 必需。规定要检查的字符串。

charlist

可选。规定从字符串中删除哪些字符。如果被省略,则移除以下所有字符:
"\0" - NULL
"\t" - 制表符
"\n" - 换行
"\x0B" - 垂直制表符
"\r" - 回车
" " - 空格

示例代码如下:

<&#63;php
 $str="\r\r(:@_@  帮客之家 提供大量优秀脚本与素材下载  @_@:)   ";
 echo trim($str);
 echo "<br/>";
 echo trim($str,"\r\r(: :)");
&#63;>

运行结果如下:

(:@_@ 帮客之家 提供大量优秀脚本与素材下载 @_@:)
@_@ 帮客之家 提供大量优秀脚本与素材下载 @_@

希望本文所述对大家PHP程序设计有所帮助。

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