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php去空格trim无效用str_replace实现

Jun 13, 2016 am 09:48 AM
php replace str trim function go Can accomplish have Related space

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

 代码如下 复制代码

trim 去除一个字符串两端空格,
rtrim 是去除一个字符串右部空格,
ltrim 是去除一个字符串左部空格。

echo trim(" 空格www.bKjia.c0m ")."
";
echo rtrim(" 空格 ")."
";
echo ltrim(" 空格 ")."
";
?>

达到的效果与str_replace是一样的

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