The strncmp() function compares two strings.
int strncmp ( string $str1 , string $str2 , int $len )
This function is similar to strcmp(), with the difference that you can specify the (upper limit of the) number of characters from each string to be used in the comparison.
| Parameter | Description |
|---|---|
| str1 | The first string. |
| str2 | The second string. |
| len | Number of characters to use in the comparison. |
Returns < 0 if str1 is less than str2; > 0 if str1 is greater than str2, and 0 if they are equal.