PHP strnatcmp function: Compare strings using natural sorting algorithm.
php strnatcmp() function syntax
Function: compare strings in natural order
Syntax:
strnatcmp(string1,string2)
Parameters:
string1 Required, specifies the first string to be compared.
string2 must specify the second string to be compared.
Description: The strnatcmp() function uses a "natural" algorithm to compare two strings. In natural arithmetic, 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. Note that this function is case-sensitive. If the two strings are equal, 0 is returned. If string1 is greater than string2, the returned value is greater than 0. If string1 is less than string2, the returned value is less than 0.
php strnatcmp() function usage example:
<?php //使用自然算法来比较两个字符串 echo strnatcmp("2hello world!","01hello world!"); echo "<br>"; echo strnatcmp("01hello world!","2hello world!"); ?>
Output:
1 -1
This article is an introduction to the PHP strnatcmp function. I hope it will be helpful to friends in need!
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