ctype函数_PHP ctype_space（）函数与示例

ctype函数

PHP ctype_space()函数 (PHP ctype_space() function)

ctype_space() function is a character type (CType) function in PHP, it is used to check whether a given string contains whitespace or not.

ctype_space()函数是PHP中的字符类型(CType)函数，用于检查给定的字符串是否包含空格。

Note: Whitespace contains some of the other things like "tabs" (horizontal, vertical), "line feed", "carriage return", and "form feed".

注意：空格包含其他一些内容，例如“制表符”(水平，垂直)，“换行符”，“回车”和“换页符”。

It returns true – if the string contains whitespaces, else it returns false.

它返回true –如果字符串包含空格，则返回false 。

Syntax:

句法：

ctype_space(string) : bool

Example:

例：

Input: "rn"
Output: true
Input: " "
Output: true
Input: "Hello world"
Output: false

PHP code:

PHP代码：

<?php
$str = " ";
if(ctype_space($str))
echo ("$str contains whitespaces.n");
else
echo ("$str does not contain whitespaces.n");
$str = "rn";
if(ctype_space($str))
echo ("$str contains whitespaces.n");
else
echo ("$str does not contain whitespaces.n");
$str = "Hello world123";
if(ctype_space($str))
echo ("$str contains whitespaces.n");
else
echo ("$str does not contain whitespaces.n");
$str = "[email protected]&a";
if(ctype_space($str))
echo ("$str contains whitespaces.n");
else
echo ("$str does not contain whitespaces.n");
?>

Output

输出量

contains whitespaces.
contains whitespaces.
Hello world123 does not contain whitespaces.
[email protected]&a does not contain whitespaces.

翻译自: https://www.includehelp.com/php/ctype_space-function-with-example.aspx

ctype函数