php去空格trim无效用str_replace实现
php去空格有相关函数 trime,他可以去除两个空格或直接使用ltrim与rtrim函数结果与trim一样,如果要删除所有空格只有使用str_replace替换了。
平时过虑空格,一般都是用trim,今天发现,中间的空格去不掉.倒,查了说明才知道,trim只能去两头的,比如$abc = a b c; ,用trim只能把a前面c后面的空格去掉,但是b前后的空格怎么办呢. str_replace出场了,这样就行了
代码如下 | 复制代码 |
str_replace(' ','',$abc). |
需要去空格的同学们小心了,php去空格,trim不行,str_replace行了,但是trim可以删除头空格了如下
例
代码如下 | 复制代码 |
trim 去除一个字符串两端空格, echo trim(" 空格www.bKjia.c0m ")." |
达到的效果与str_replace是一样的

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