is_blank()? [英] is_blank()?
本文介绍了is_blank()?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我怎样才能检查字符串变量是否只包含空格?
empty()不起作用,除非字符串变量是"。 />
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How could I check whether a string variable contains nothing but space?
empty() does not work unless the string variable is "".
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推荐答案
Man-wai Chang写道:
Man-wai Chang wrote:
>
如何检查字符串变量是否只包含空格?
empty()除非字符串变量是"否则不起作用。
>
How could I check whether a string variable contains nothing but space?
empty() does not work unless the string variable is "".
empty(trim(
empty(trim(
variable));
Hendri Kurniawan
variable));
Hendri Kurniawan
5月10日晚上10点38分,Hendri Kurniawan<问... @ email.comwrote:
On May 10, 10:38 pm, Hendri Kurniawan <ask...@email.comwrote:
Man-wai Chang写道:
Man-wai Chang wrote:
如何检查字符串变量是否只包含空格?
除非字符串变量是",否则empty()不起作用。
How could I check whether a string variable contains nothing but space?
empty() does not work unless the string variable is "".
为空(修剪(
empty(trim(
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