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strncmp

(PHP 4, PHP 5, PHP 7)

strncmp — Binary safe string comparison of the first n characters

Description

strncmp ( string $str1 , string $str2 , int $len ) : int

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.

Note that this comparison is case sensitive.

Parameters

str1

The first string.

str2

The second string.

len

Number of characters to use in the comparison.

Return Values

Returns < 0 if str1 is less than str2; > 0 if str1 is greater than str2, and 0 if they are equal.

See Also

  • strncasecmp() - Binary safe case-insensitive string comparison of the first n characters
  • preg_match() - Perform a regular expression match
  • substr_compare() - Binary safe comparison of two strings from an offset, up to length characters
  • strcmp() - Binary safe string comparison
  • strstr() - Find the first occurrence of a string
  • substr() - Return part of a string

© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.strncmp.php