PHP strncmp () function
Examples
Compares two strings (case sensitive):
<?php
echo strncmp("Hello world!","Hello earth!",6);
?>
echo strncmp("Hello world!","Hello earth!",6);
?>
Running instance »
Definition and Usage
strncmp () function compares two strings (case-sensitive).
Note: strncmp () is binary-safe, and is case sensitive.
Tip: This function strcmp () function is similar, except that, strcmp () no length parameter.
grammar
strncmp( string1,string2,length )
参数 | 描述 |
---|---|
string1 | 必需。规定要比较的第一个字符串。 |
string2 | 必需。规定要比较的第二个字符串。 |
length | 必需。规定每个字符串用于比较的字符数。 |
technical details
return value: | This function returns:
|
---|---|
PHP version: | 4+ |
More examples
Example 1
Compares two strings (case sensitive, Hello and hELLo output are not the same):
<?php
echo strncmp("Hello","Hello",6);
echo "<br>";
echo strncmp("Hello","hELLo",6);
?>
echo strncmp("Hello","Hello",6);
echo "<br>";
echo strncmp("Hello","hELLo",6);
?>
Running instance »
PHP String Reference