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php strnatcmp()函数的用法总结_php技巧

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2016-05-17 08:52:301180browse

Definition and Usage
定义和用法
The strnatcmp() function compares two strings using a "natural" algorithm.
strnatcmp()函数的作用是:用自然运算法则比较字符串(大小写敏感)。

In a natural algorithm, the number 2 is less than the number 10. In computer sorting, 10 is less than 2, because the first number in "10" is less than 2.
在“自然运算法则”中,2比10小。在计算机序列当中,10比2小,因为“10”中的第一个数字是“1”,它小于2。

This function returns:
这个函数将返回下列值:

•0 - if the two strings are equal
0 – 如果字符串相等
••>0 - if string1 is greater than string2
>0 – 如果string1大于string2
Syntax
语法

复制代码 代码如下:

strnatcmp(string1,string2)
Parameter参数 Description描述
string1 Required. Specifies the first string to compare
必要参数。指定参与比较的第一个字符串对象
string2 Required. Specifies the second string to compare
必要参数。指定参数比较的第二个字符串对象

Tips and Notes
注意点
Note: The strnatcmp() is case-sensitive.
注意:strnatcmp()函数是区分大小写的。

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Example
案例

复制代码 代码如下:

";echo strnatcmp("10Hello world!","2Hello world!");?>

The output of the code above will be:
上述代码将输出下面的结果:-1 1
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